Athena S. Sefat

1

CURRICULUM VITAE

Dr. Athena S. Sefat

Senior Scientist, Physical Sciences Directorate (PSD),

Materials Science and Technology Division (MSTD), Oak Ridge National Laboratory (ORNL)

EDUCATION

McMaster University, Canada BS, Chemistry 2001

McMaster University, Canada PhD, Solid-state chemistry 2005

RESEARCH EXPERIENCE

Ames Laboratory (Physics Dept.): Postdoc, Condensed-matter physics 2005 – 2007

Oak Ridge National Laboratory (PSD): Wigner Fellow 2007 – 2009

ORNL (PSD): DOE Early Career Award (ECA) PI 2010 – 2015

ORNL (PSD): DOE Basic Energy Sciences (BES) PI 2015 – Present

CURRENT POSITION: MAIN RESPONSIBILITIES, NOTABLE ACCOMPLISHMENTS

Principal Investigator (PI), ORNL 2010 – Present

Lead DOE’s ECA ($2.5M budget), and BES Materials Sciences and

Engineering (MSE) Division project ($1M/year budget), including planning

and performing experiments, budgeting, staffing of researchers and postdocs,

and reporting to BES management

Total of >220 peer-reviewed publications, sum of citations > 8500, h-index=

48 (Web of Science, May 2019)

Chair of Distinguished Staff Fellowship Selection Committee, ORNL 2016 – Present

Lead the new fellowship initiative at ORNL, which combines the Russell,

Wigner, and Weinberg Fellowships, and report to ORNL’s Deputy Director

for Science and Technology

Develop a new charter and committee and lead efforts in

advertising/recruiting, application, selection progress, and integration plans

BES Contractor, Office of Science, DOE Oct 2018 – Present

Coordinate proposal handling and review for MSE Division and

Experimental Condensed Matter Physics Programs. Assist with other

activities such as research highlight reviews and MSED workshop planning

PROFESSIONAL SOCIETIES

Materials Research Society (MRS)

Member of New Meetings Committee: Committee reviews and decides

on all meeting initiatives, including workshops and sessions

2018, 2019

American Physical Society (APS), Division of Materials Physics (DMP)

Committee reviews nominations and recommends candidates for

election to APS Fellowship

2018

APS Committee of International Freedom of Scientists 2019 – 2021

Athena S. Sefat

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INTERNATIONAL/NATIONAL SCIENCE ACTIVITIES

2018 Panelist: National Science Foundation (NSF), Division of Materials Research, onsite proposal

review of Solid State and Materials Chemistry program

2017 Panelist: DOE Office of BES, MSE Division, Brookhaven National Laboratory onsite review

of Condensed-Matter Physics and Materials Science Department

Panelist: Deutsche Forschungsgemeinschaft (DFG, German Research Foundation), offsite

review for Clusters of Excellence proposals in the area of Physics of Quantum Systems

Advisory Committee: Universal Scientific Education and Research Network (USERN),

provides a platform for international communication and collaboration of scientists worldwide

2016 Advisory Committee: DOE Office of BES workshop “Basic Research Needs for Quantum

Materials for Energy Relevant Technology” — Contributed to writing the report and

contributed figure (https://science.energy.gov/~/media/bes/pdf/reports/2016/BRNQM_rpt_

Final_12-09-2016.pdf; Figure on page 88)

Organizer: International Conference on Superconductivity and Magnetism (ICSM), Turkey.

Technical Session on “Iron-based Superconductors: Properties of Materials in Single Crystal

and Thin Film”

Committee Member: Gordon Research Conference Careers

Advisory Committee: USERN, provides a platform for international communication and

collaboration of scientists worldwide

2015 Organizer: 20th American Conference on Crystal Growth and Epitaxy (ICCGE), symposium

on “Correlated Electron Crystals”

Co-Organizer: MRS Conference, symposium on “Science and Technology of Superconducting

Materials”

Panelist: CRDF-QNRF Global Women in Science, Qatar. Organized by US Civilian Research

and Development Foundation and Qatar National Science Foundation. Speaker and panelist on

the topics of women’s issues in Muslim countries, including education and jobs in science

fields

Panelist: NSF, Division of Materials Research, onsite proposal review of Solid State and

Materials Chemistry program

2014 Panelist: DOE’s Office of BES, MSE Division, Brookhaven National Laboratory’s onsite

review of Condensed-Matter Physics and Materials Science Department

Organizer: ICSM, Turkey. Technical session on “Iron-based Superconductors: Properties of

Materials in Single Crystal and Thin Film”

2013 Organizer: 19th ACCGE, Symposium on “Correlated Electron Crystals”

Co-Organizer: APS Conference, March Meeting, Symposium on “Search for New

Superconductors”

2012 Advisory Board, Turkey’s Collaborative Scientific Opportunities. Organized by Ankara

University with focus on international research opportunities in superconductivity and

magnesium

Athena S. Sefat

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HONORS AND AWARDS

2019 Fellow, Institute of Physics (IOP)

2019 Featured on local news network “U.S. Secretary of Energy Rick Perry announces

plan to build most powerful computer in the world at ORNL” (https://www.wbir.com/video/tech/us-secretary-of-energy-rick-perry-announces-plan-

to-build-most-powerful-computer-in-the-world-at-ornl/51-74983829-8f89-4bd6-a09b-

c96d53425c09)

and New Sentinel “Oak Ridge National Lab to get $95 million research building” (https://www.knoxnews.com/story/money/business/2019/05/07/ornl-oak-ridge-

national-laboratory-new-building/1120506001/)

2018 APS representative for Professional Organization: Provide information about APS

purpose, benefits, networking opportunities to staff and students at ORNL

2018 Panelist at ORNL’s Women in Physical Sciences program: “Navigating your

Career”

2017–2018 Member of ORNL Fellowship Review Committee (evaluate fellowships program)

2016–2018 Chair of ORNL Distinguished Staff Fellowship Selection Committee (combines

Russell, Wigner, and Weinberg Fellowships)

2017–2018 National GEM Consortium Judge: Technical Presentation Competitions

2017 University of Tennessee (UT) Bredesen Center faculty

2017 Featured in ORNL Review (“Fundamentally strong: ORNL dives into basic

science,” vol. 50, no.2 (https://www.ornl.gov/sites/default/files/

ORNL%20Review%20v50n2%202017.pdf#page=8)

2017 Featured on cover page of ORNL FY 2017 Annual Report: (https://portal07.ornl.gov/sites/ios/businessplans/FY17%20Business%

20Planning/FY%202017%20ORNL%20Annual%20Report.pdf)

2017 Speaker for Early Career Development Program of ORNL Business Services

Directorate (BSED)

2016 Fellow, American Physical Society (APS)

2016 ORNL “Significant Event Award,” (SEA) for teamwork and science innovation

2016 YWCA Tribute to Women, Finalist, in recognition of outstanding women in East

Tennessee (https://vimeo.com/183370036)

2016 Member of Research Enterprise System RESolution Committee: Work alongside

ORNL’s Office of Institutional Planning and an outside company to develop lab-

wide project management tools and online applications related to research staff

Athena S. Sefat

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2016 Chair of Laboratory Directed Research and Development (LDRD) Committee:

Materials by Design initiative

2015 “40 Under 40”: Featured in Business Journal as a Greater Knoxville region rising

star (http://bit.ly/28LOUMf)

2015 ECA research was featured by Dr. Harriet Kung (DOE BES Director), at BES

Advisory Committee, BESAC, July meeting (http://science.energy.gov/bes/besac/meetings/)

2015 Featured by “Geek Puff,” which records the advances of women in STEM fields (http://www.geekpuff.com/crystals-design/)

2015 Member of LDRD Committee: Discovery and Innovation initiative

2014–2015 Member of Research Enterprise System RESolution Committee: Work alongside

ORNL’s Office of Institutional Planning and an outside company to develop lab-

wide project management tools and online applications related to research staff

2014–2015 Member of Research Conflict of Interest Advisory Committee: Work alongside

Office of General Counsel and ORNL’s Deputy Director for Science and

Technology to review research staff proposals for outside activities

2014 “Thomson Reuters Highly Cited Researcher”: In recognition of ranking among

the top 1% of researchers being cited in the field of physics, sometime between

2002 and 2013 (http://www.utwente.nl/mira/publicmedia/

influential-scientific-minds.pdf)

2014 Named as one of the “Five ORNL scientists rated among world’s most

influential” (http://oakridgetoday.com/2014/08/01/five-ornl-scientists-rated-among-

worlds-influential/)

2014 Chosen as an ORNL speaker for community outreach: “What problem are you

working on?” (https://www.youtube.com/watch?v=4VM6HLQ79XY)

2013 DOE’s “Women@Energy” (http://energy.gov/diversity/articles/women-energy-

athena-sefat)

2013 Featured in Professional Woman’s Magazine (2013, issue 13, page 58); article

entitled Staying Close to Mother Nature describes my work in STEM fields

2008–2013 Laboratory Space Manager (LSM) of Correlated Electron Materials Group: Four

laboratory spaces

2011–2012 Co-Chair of Materials and Chemistry Seminars jointly sponsored by MSTD and

Chemical Sciences Division within the Physical Sciences Directorate

2011 ORNL’s Gordon Battelle Award for Group Scientific Discovery

2010 Early Career Award, DOE

Athena S. Sefat

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2010 ORNL Awards Night: Early Career Award for Scientific Accomplishment

2010 Featured in an article in the Oak Ridger, the local newspaper, entitled “Iranian

finally allowed into U.S. nuke laboratory,” for my persistence in remaining in

science despite obstacles (http://bit.ly/28Ne50s)

2009 ORNL Awards Night: Director’s Award for Outstanding Team Accomplishment

2007 ORNL’s Eugene P. Wigner Fellowship

2003 NSERC Doctoral Scholarship (Natural Science and Engineering Research Council

of Canada), McMaster University

2003 Ontario Graduate Scholarship, McMaster University

2003 Shell Canada Scholarship in Science and Technology, McMaster University

2001 NSERC Undergraduate Research Award, McMaster University

2000 Canada Millennium Scholarship

ORNL MANAGEMENT COURSES (ONSITE)

Management Bootcamp (2012)

Vanderbilt Executive Management Development Program (2013)

Workshop of Alan Alda Center for Communicating Science (2016)

1×1 coaching (2017) — DiSC style: Conscientiousness

PEER-REVIEWED JOURNAL PUBLICATIONS

Total = 221, Sum of Citations> 8500, h-index= 48 (Web of Science, May 10, 2019)

Open Researcher and Contributor ID (ORCID): 0000-0002-5596-35

*: Invited

(221) Mirmelstein, A.; Kolesnikov, A.I.; Ehlers, G.; Abernathy, D.L.; Matvienko, V.; Sefat, A.S.;

Podlesnyak, A. “Dynamic Magnetic response across the pressure-induced structural phase

transition in CeNi,” Physical Review B 99 (2019), 024401.

(220) Taddei, K.M.; Sanjeewa, L.; Kolis, J.W.; Sefat, A.S.; de la Cruz, C.; Pajerwski, D.M. “Local-Ising

type magnetic order and metamagnetism in the rare-earth pyrogermanate Er2Ge2O7,” Physical

Review Materials 3 (2019), 014405.

(219) Ijaduola, A.O.; Shipra, R.; Sefat, A.S. “Effect of pressure on the superconducting properties of

Tl2Ba2Ca2Cu3O9-δ,” Crystals 9 (2019), 4.

(218) Kim, J.S.; VanGennep, D.; Hamlin, J.J.; Wang, X.; Sefat, A.S.; Stewart, G.R. “Unusual effects of

Be doping in the iron-based superconductor FeSe,” Journal of Physics: Condensed Matter 30,

445701 (2018).

(217) Nikitin, S.E.; Wu, L.S.; Sefat, A.S.; Shaykhutdinov, K.A.; Lu, Z.; Meng, S.; Pomjakushina, E.V.;

Conder, K.; Ehlers, G.; Lumsden, M.D.; Kolesnikov, A.I.; Barilo, S.; Guretskii, S.A.; Inosov, D.S.;

Podlesnyak, A. “Decoupled spin dynamics in rare-earth orthoferrite YbFeO3: Evolution of

magnetic excitations through the spin-reorientation transition,” Physical Review B 98, 064424

(2018).

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(216) Felder, J.B.; Smith, M.D.; Sefat, A.; zur Loye, H.C. “Magnetic and thermal behavior of a family of

compositionally related zero-dimensional fluorides,” Solid State Sciences 81 (2018), 19.

(215) Taddei, K.M.; Xing, G.; Sun, J.; Fu, Y.; Li, Y.; Zheng, Q.; Sefat, A.S.; Singh, D.J.; de la Cruz, C.

“Frustrated structural instability in superconducting quasi-one-dimensional K2Cr3As3,” Physical

Review Letters 121, 187002 (2018).

(214) Smylie, M. P.; Claus, H.; Kwok, W.-K.; Louden, E.R.; Eskilden, M.R.; Sefat, A.S.; Zhong, R.D.;

Schneeloch, J.; Gu, G.D.; Bokari, E.; Niraula, P.M.; Kayani, A.; Dewhurst, C.D.; Snezhko, A.;

Welp, U. “Superconductivity, pairing symmetry, and disorder in the doped topological insulator

Sn1xInxTe for x0.10,” Phys. Rev. B 97, 024511 (2018).

(213) Dzubak, A.L.; Mitra, C.; Chance, M.; Kuhn, S.; Jellison, G.E.; Sefat, A.S.; Krogel, J.T.; Reboredo,

F.A. “Diffusion quantum Monte Carlo predictions for bulk MnNiO3,” The Journal of Chemical

Physics 147, 174703 (2017).

(212) Sundar, S.; Mosqueira, J.; Alvarenga, A.D.; Sonora, D.; Sefat, A.S.; Salem-Sugui, S. “Study of the

second magnetization peak and the pinning behavior in Ba(Fe0.935Co0.065)2As2 pnictide

superconductor,” Superconductor Science & Technology 30, 125007 (2017).

(211) Taddei, K.M.; Zheng, Q.; Sefat, A.S.; de la Cruz, C. “Coupling of structure to magnetic and

superconducting order in quasi-one-dimensional K2Cr3As3,” Physical Review B 96, 180506 (2017).

(210) Wu, L.S.; Nikitin, S.E.; Frontzek, M.; Kolesnikov, A.I.; Ehlers, G.; Lumsden, M.D.;

Shaykhutdinov, K.A.; Guo, E.-J.; Savici, A.T.; Gai, Z.; Sefat, A.S.; Podlesnyak, A. “Magnetic

ground state of the Ising-like antiferromagnet DyScO3,” Physical Review B 96, 144407 (2017).

(209) Lafuerza, S.; Gretarsson, H.; Hardy, F.; Wolf, T.; Meingast, C.; Giovannetti, G.; Capone, M.; Sefat,

A.S.; Kim, Y.-J.; Glatzel, P.; Medici, L. “Evidence of Mott physics in iron pnictides from

x-ray spectroscopy,” Physical Review B 96, 045133 (2017).

(208) Zou, Q.; Wu, Z.M.; Fu, M.M. Zhang, C.M.; Rajput, S.; Wu, Y.P.; Li, L.; Parker, D.S.; Kang, J.;

Sefat, A.S.; Gai, Z. “Effect of surface morphology and magnetic impurities on the electronic

structure in cobalt-doped BaFe2As2 superconductors,” Nano Letters 17, 1642 (2017).

(207) Mohanty, D.; Mazumder, B.; Devaraj, A.; Sefat, A.S.; Huq, A.; David, L.A.; Payzant, E.A.; Li, J.;

Wood III, D.L.; Daniel, C. “Resolving the degradation pathways in high-voltage oxides for high-

energy-density lithium-ion batteries; Alteration in chemistry, composition and crystal structures,”

Nano Energy 36, 76 (2017).

(206) Li, L.; Zheng, Q.; Zou, Q.; Rajput, S.; Ijaduola, A.O.; Wu, Z.; Wang, X.P.; Cao, H.B.; Somnath,

S.; Jesse, S.; Chi, M.; Gai, Z.; Parker, D.; Sefat, A.S. “Improving superconductivity in BaFe2As2-

based crystals by cobalt clustering and electronic uniformity,” Scientific Reports 7, 949 (2017).

(205) Richard, P.; Roekeghem, A. van; Lv, B.Q.; Qian, T.; Kim, T.K.; Hoesch, M.; Hu, J.-P.; Sefat, A.S.;

Biermann, S.; Ding, H. “Is BaCr2As2 symmetrical to BaFe2As2 with respect to half 3d shell filling?”

Physical Review B 95, 184516 (2017).

(204) *Konzen, L.M.N.; Sefat, A.S., “Lattice parameters guide superconductivity in iron-arsenides,”

Journal of Physics: Condensed Matter 29, 083001 (2017).

(203) Kuhn, S.; Kidder, M.; Chance, W.M.; Dela Cruz, C.R.; McGuire, M.A.; Parker, D.S.; Li, L.;

Debeer-Schmitt, L.M.; Ermentrout, J.M.; Littrell, K.; Eskildsen, M.; Sefat, A.S. “FeS: Structure

and composition relations to superconductivity and magnetism,” Physica C: Superconductivity and

its Applications 534, 29 (2017).

(202) Salem-Sugui, S.J.; Moseley, D.; Stuard, S.J.; Alvarenga, A.D.; Sefat, A.S.; Cohen, L.F.; Ghivelder,

L., “Effects of proton irradiation on flux-pinning properties of underdoped Ba(Fe0.96Co0.04)2As2

pnictide superconductor,” Journal of Alloys and Compounds 694, 1371 (2017).

(201) Vilmercati, P.; Mo, S.K.; Fedorov, A.; McGuire, M.; Sefat, A.; Sales, B.; Mandrus, D.; Singh, D.J.;

Ku, W.; Johnston, S.; Mannella, N., “Nonrigid band shift and nonmonotonic electronic structure

changes upon doping in the normal state of the pnictide high-temperature superconductor Ba(Fe1-

xCox)2As2,” Physical Review B 94, 195147 (2016).

(200) Zhang, W.L.; Sefat, A.S.; Ding, H.; Richard, P.; Blumberg, G., “Stress-induced nematicity in

EuFe2As2 studied by Raman spectroscopy,” Physical Review B 94, 014513 (2016).

Athena S. Sefat

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(199) Ziatdinov, M.A.; Maksov, A.B.; Li, L.; Sefat, A.S.; Maksymovych, P.; Kalinin, S.V., “Deep data

mining in real space: Separation of intertwinned electronic responses in a lightly-doped BaFe2As2,”

Nanotechnology 27, 475706 (2016).

(198) Chen, X.; Harriger, L.; Sefat, A.; Birgeneau, R.J.; Wilson, S.D., “Strain-activated structural

anisotropy in BaFe2As2,” Physical Review B 93, 144118 (2016).

(197) Zhang, W.L.; Richard, P.; Roekeghem, A.; Nie, S.M.; Xu, N.; Zhang, P.; Miao, H.; Su, S.F.; Yin,

J.X.; Fu, B.B.; Kong, L.Y.; Qian, T.; Wang, Z.J.; Fang, Z.; Sefat, A.S.; Biermann, S.; Ding, H.,

“Angle-resolved photoemission observation of Mn-pnictide hybridization and negligible band

structure renormalization in BaMn2As2 and BaMn2Sb2,” Physical Review B 94, 155155 (2016).

(196) Li, L.; Parker, D.S.; de la Cruz, C.R.; Sefat, A.S., “Multi-layer chalcogenides with potential for

magnetism and superconductivity,” Physica C: Superconductivity and Its Applications 531, 25

(2016).

(195) Li, L.; Cao, H.; Parker, D.S.; Kuhn S.J.; Sefat, A.S., “Persistent magnetism in silver-doped

BaFe2As2 crystals,” Physical Review B 94, 134510 (2016).

(194) Roekeghem, A.; Richard, P.; Shi, X.; Wu, S.; Zeng, L.; Saparov, B.; Ohtsubo, Y.; Qian, T.; Sefat,

A.S.; Biermann, Ding, H., “Tetragonal and collapsed-tetragonal phases of CaFe2As2–a view from

angle-resolved photoemission and dynamical mean field theory,” Physical Review B, 93, 245139

(2016).

(193) Liu, Z.; Biegalski, M.D.; Su, S.L.; Shang, S.; Marker, C.; Liu, J.; Li, L.; Fan, L.; Meyer, T.L.;

Wong, A.T.; Nichols, J.A.; Chen, D.; You, L.; Chen, Z.; Wang, K.; Wang, K.; Ward, T.Z.; Gai, Z.;

Lee, H.N.; Sefat, A.S.; Lauter, V.; Liu, Z.K.; Christen, H.M., “Epitaxial growth of intermetallic

MnPt films on oxides and large exchange bias,” Advanced Materials 28, 118 (2016).

(192) Zhang, W.L.; Yin, Z.P. Ignatov, A.; Bukowski, Z.; Karpinski, J.; Sefat, A.S.; Ding, H.; Richard,

P.; Blumberg, G., “Raman scattering study of spin-density-wave-induced anisotropic electronic

properties in AFe2As2 (A=Ca, Eu),” Physical Review B 93, 205106 (2016).

(191) Mohanty, D.; Dahlberg, K.; King. D.M.; David, L.A.; Sefat, A.S.; Wood, D.L.; Daniel, C.; Dhar,

S.; Mahajan, V.; Lee, M.; Albano, F., “Modification of Ni-rich FCG NMC and NCA cathodes by

atomic layer deposition: Preventing surface phase transitions for high-voltage lithium-ion

batteries,” Scientific Reports 6, 26532 (2016).

(190) Liu, Z.Q.; Li, L.; Gai, Z.; Clarkson, J.D.; Hsu, S.L.; Wong, A.T.; Fan, L.S.; Lin, M.-W.; Rouleau,

C.M.; Ward, T.Z.; Lee, H.N.; Sefat, A.S.; Christen, H.M.; Ramesh. R., “Full electroresistance

modulation in a mixed-phase metallic alloy,” Physical Review Letters 116, 097203 (2016).

(189) Oleaga, A.; Shvalya, V.; Sefat, A.S.; Salazar, A., “Transport thermal properties of LiTaO3

pyroelectric sensor from 15 K to 400 K and its application to the study of critical behavior in

EuCo2As2,” International Journal of Thermophysics 37, 4 (2016).

(188) Sefat, A.S.; Li, L.; Cao, H.B.; McGuire, M.A.; Sales, B.; Custelcean, R.; Parker, D.S., “Anomalous

magneto-elastic and charge doping effects in thallium-doped BaFe2As2,” Scientific Reports 6,

21660 (2016).

(187) Li, L.; Parker, D.; Chi, M. Tsoi, G.M.; Vohra, Y.K.; Sefat, A.S., “Metallicity of Ca2Cu6P5 with

single and double copper-pnictide layers,” Journal of Alloys and Compounds 671, 334 (2016).

(186) Shipra, R.; Sefat, A.S., “Effect of Li2O on the microstructure, magnetic and transport properties of

Tl-2223 superconductor,” Physica C: Superconductivity and its applications 519, 108 (2015).

(185) Li, L.; Cao, H.; McGuire, M.A.; Kim, J.S.; Stewart, G.R.; Sefat, A.S., “Role of magnetism in

superconductivity of BaFe2As2: Study of 5d Au-doped crystals,” Physical Review B 92, 094504

(2015).

(184) Mirmelstein, A.; Podlesnyak, A.; dos Santos, A.M.; Ehlers, G.; Kerbel, O.; Matvienko, V.; Sefat,

A.S.; Saparov, B.; Halder, G.J.; Tobin, J.G., “Pressure-induced structural phase transition in CeNi:

X-ray and neutron scattering studies and first-principles calculations,” Physical Review B 92,

054102 (2015).

(183) Shipra, R.; Idrobo, J.C.; Sefat, A.S., “Structural and superconducting features of Tl-1223 prepared

at ambient pressure,” Superconductor Science & Technology 28, 115006 (2015).

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(182) Moseley, D.; Yates, K.A.; Branford, W.R.; Sefat, A.S.; Mandrus, D.; Stuart, S.J.; Salem-Sugui, S.;

Ghivelder, L.; Cohen, L.F., “Signatures of filamentary superconductivity in antiferromagnetic

BaFe2As2 single crystals,” Europhysics Letters 111, 37005 (2015).

(181) Khasanov, R.; Guguchia, Z.; Eremin, I.; Luetkens, H.; Amato, A.; Biswas, P.K.; Ruegg, C.; Susner,

M.A.; Sefat, A.S.; Zhigadlo, N.D.; Morenzoni, E., “Pressure-induced electronic phase separation

of magnetism and superconductivity in CrAs,” Scientific Reports 5, 13788 (2015).

(180) Wu, S.F.; Richard, P.; Roekeghem, A.V.; Nie, S.M.; Miao, H.; Xu, N.; Qian, T.; Saparov, B.; Fang,

Z.; Biermann, S.; Sefat, A.S.; Ding, H., “Direct spectroscopic evidence for completely filled Cu 3d

shell in BaCu2As2 and α-BaCu2Sb2,” Physical Review B 91, 235109 (2015).

(179) Cantoni, C.; McGuire, M.A.; Saparov, B.; May, A.F.; Keiber, T.; Bridges, F.; Sefat, A.S.; Sales,

B.C., “Room-temperature Ba(Fe1-xCox)2As2 is not tetragonal: Direct observation of magnetoelastic

interactions in pnictide superconductors,” Advanced Materials 27, 2715 (2015).

(178) Mohanty, D.; Sefat, A.S.; Payzant, E.A.; Li, J.; Wood, D.L.; Daniel, C., “Unconventional

irreversible structural changes in a high-voltage Li-Mn-rich oxide for lithium-ion battery cathodes,”

Journal of Power Sources 283, 423 (2015).

(177) Susner, M.A.; Parker, D.S.; Sefat, A.S., “Importance of doping and frustration in itinerant Fe-doped

Cr2Al,” Journal of Magnetism and Magnetic Materials 392, 68 (2015).

(176) Moseley, D.A.; Yates, K.A.; Mandrus, D.; Sefat, A.S.; Branford, W.R.; Cohen, L.F.,

“Magnetotransport of proton-irradiated BaFe2As2 and BaFe1.985Co0.015As2 single crystals,” Physical

Review B 91, 054512 (2015).

(175) Haberkorn, N.; Kim, J.; Gofryk, K.; Ronning, F.; Sefat, A.; Welp, U.; Fang, L.; Kwok, W.K.;

Civale, L., “Enhancement of the critical current density by increasing the collective pinning energy

in heavy ion irradiated Co-doped BaFe2As2 single crystals,” Superconductor Science & Technology

28, 055011 (2015).

(174) Li, L.; Parker, P.; Babkevich, P.; Yang, L.; Ronnow, H.M.; Sefat, A.S., “Superconductivity in

semimetallic Bi3O2S3,” Physical Review B 91, 104511 (2015).

(173) Mitchell, J.E.; Hillesheim, D.A.; Bridges, C.A.; Paranthaman, M.P.; Gofryk, K.; Rindfleisch, M.;

Tomsic, M.; Sefat, A.S., “Optimization of a non-arsenic iron-based superconductor for wire

fabrication,” Superconductor Science & Technology 28, 045018 (2015).

(172) Keller, L.; White, J. S.; Frontzek, M.; Babkevich, P.; Susner, M.A.; Sims, Z.C.; Sefat, A.S.;

Ronnow, H.M.; Ruegg, Ch., “Pressure dependence of the magnetic order in CrAs: A neutron

diffraction investigation,” Physical Review B 91, 020409(R) (2015).

(171) Kim, J.; Haberkorn, N.; Gofryk, K.; Graf, M.J.; Ronning, F.; Sefat, A.S.; Movshovich, R.; Civale,

L., “Superconducting properties in heavily overdoped Ba(Fe0.86Co0.14)2As2 single crystals,” Solid

State Communications 201, 20 (2015).

(170) Mirmelstein, A.V.; Podlesnyak, A.; Kolesnikov, A.I.; Saparov, B.; Sefat, A.S.; Tobin, J.G.,

“Neutron Scattering of CeNi at the SNS-ORNL: A Preliminary Report,” Materials Research

Society Symposium Proceedings 1683, 26 (2014).

(169) Hillesheim, D.; Gofryk, K.; Sefat, A.S., “On the nature of filamentary superconductivity in metal-

doped hydrocarbon organic materials,” Novel Superconducting Materials 1, 12 (2014).

(168) Gu, D.; Dai, X.; Le, C.; Sun, L.; Wu, Q.; Saparov, B.; Guo, J.; Gao, P.; Zhang, S.; Zhou, Y.; Zhang,

C.; Xiong, L.; Li, R.; Li, Y.; Li, X.; Liu, J.; Sefat, A.S.; Hu, J.; Zhao, Z., “Robust

antiferromagnetism preventing superconductivity in pressurized Ba0.61K0.39Mn2Bi2,” Scientific

Reports 4, 7342 (2014).

(167) Belianinov, A.; Ganesh, P.; Lin, W.; Sales, B.C.; Sefat, A.S.; Jesse, S.; Pan, M.; Kalinin, S.V.,

“Research update: Spatially resolved mapping of electronic structure on atomic level by

multivariate statistical analysis,” APL Materials 2, 120701 (2014).

(166) Yeon, J.; Hardaway, J.B.; Sefat, A.S.; Latshaw, A.M.; zur Loye, H-C., “Crystal growth, structures,

magnetic and photoluminescent properties of NaLnGeO4 (Ln = Sm, Eu, Gd, Tb),” Solid State

Sciences 34, 24 (2014).

Athena S. Sefat

9

(165) Saparov, B.; Sefat, A.S., “Annealing effects on the properties of BFe2As2 (B = Ca, Sr, Ba)

superconducting parents,” Dalton Transactions 43, 14971 (2014).

(164) Shi, H.; Saparov, B.; Singh, D.J.; Sefat, A.S.; Du, M. H., “Ternary chalcogenides Cs2Zn3Se4 and

Cs2Zn3Te4: Potential p-type transparent conducting materials,” Physical Review B 90, 184104

(2014).

(163) Cantoni, C.; Mitchell, J.E.; May, A.F.; McGuire, M.A.; Idrobo, J-C.; Berlijn, T.; Dagotto, E.;

Chisholm, M.F.; Zhou, W.; Pennycook, S.J.; Sefat, A.S.; Sales, B.C., “Orbital occupancy and

charge doping in iron-based superconductors,” Advanced Materials 26, 6193 (2014).

(162) Takeda, H.; Imai, T.; Tachibana, M.; Gaudet, J.; Gaulin, B.D.; Saparov, B.I.; Sefat, A.S., “Cu

substitution effects on the local magnetic properties of Ba(Fe1-xCux)2As2: A site-selective 75As and 63Cu NMR study,” Physical Review Letters 113, 117001 (2014).

(161) Leiner, J.; Thampy, V.; Christianson, A.D.; Abernathy, D.L.; Stone, M.B.; Lumsden, M.D.; Sefat,

A.S.; Sales, B.C.; Hu, J.; Mao, Z.; Bao, W.; Broholm, C., “Modified magnetism within the

coherence volume of superconducting Fe1+δSexTe1-x,” Physical Review B 90, 100501(R) (2014).

(160) Ahilan, K.; Imai, T.; Sefat, A.S.; Ning, F.L., “NMR investigation of spin correlations in BaCo2As2”

Physical Review B 90, 014520 (2014).

(159) Calder, S.; Saparov, B.; Cao, H.B.; Niedziela, J.L.; Lumsden, M.D.; Sefat, A.S.; Christianson, A.D.,

“Magnetic structure and spin excitations in BaMn2Bi2,” Physical Review B 89, 064417 (2014).

(158) Dhital, C.; Hogan, T.; Yamani, Z.; Birgeneau, R.J.; Tian, W.; Matsuda, M.; Sefat, A.S.; Wang, Z.;

Wilson, S., “Evolution of antiferromagnetic susceptibility under uniaxial pressure in Ba(Fe1-

xCox)2As2,” Physical Review B 89, 214404 (2014).

(157) Forbes, S.; Yuan, F.; Saparov, B.; Sefat, A.S.; Kosuda, K.; Kolodiazhnyi, T.; Mozharivskyj, Y.,

“Synthesis, crystal structure, and electronic properties of the CaRE3SbO4 and Ca2RE8Sb3O10 phases

(RE = rare-earth metal),” Chemistry of Materials 26, 2289 (2014).

(156) Gofryk, K.; Pan, M.; Cantoni, C.; Saparov, B.; Mitchell, J.E.; Sefat, A.S., “Local inhomogeneity

and filamentary superconductivity in Pr-Doped CaFe2As2,” Physical Review Letters 112, 047005

(2014).

(155) Gofryk, K.; Saparov, B.; Durakiewicz, T.; Chikina, A.; Danzenbacher, S.; Vyalikh, D.V.; Graf,

M.J.; Sefat, A.S., “Fermi-surface reconstruction and complex phase equilibria in CaFe2As2,”

Physical Review Letters 112, 186401 (2014).

(154) Moon, S.J.; Lee, Y.S.; Schafgans, A.A.; Chubukov, A.V.; Kasahara, S.; Shibauchi, T.; Terashima,

T.; Matsuda, Y.; Tanatar, M.A.; Prozorov, R.; Thaler, A.; Canfield, P.C.; Bud’ko, S.L.; Sefat, A.S.;

Mandrus, D.; Segawa, K.; Ando, Y.; Basov, D.N., “Infrared pseudogap in cuprate and pnictide

high-temperature superconductors,” Physical Review B 90, 014503 (2014).

(153) Ning, F.L.; Fu, M.; Torchetti, D.A.; Imai, T.; Sefat, A.S.; Cheng, P.; Shen, B.; Wen, H.-H., “Critical

behavior of the spin density wave transition in underdoped Ba(Fe1-xCox)2As2 (x ≤ 0.05): 75As NMR

investigation,” Physical Review B 89, 214511 (2014).

(152) Parker, D.; Idrobo, J-C.; Cantoni, C.; Sefat, A.S., “Evidence for superconductivity at Tc = 12 K in

oxygen-deficient MoO2-δ and properties of molybdenum arsenide and oxide binaries,” Physical

Review B 90, 054505 (2014).

(151) Richard, P.; Capan, C.; Ma, J.; Zhang, P.; Xu, N.; Qian, T.; Denlinger, J.D.; Chen, G-F.; Sefat,

A.S.; Fisk, Z.; Ding, H., “Angle-resolved photoemission spectroscopy observation of anomalous

electronic states in EuFe2As2-xPx,” Journal of Physics: Condensed Matter 26, 035702 (2014).

(150) Nicholson, D.M.; Odbadrakh, Kh.; Shassere, B.A.; Rios, O.; Hodges, J.; Ludtka, G.M.; Porter,

W.D.; Sefat, A.S.; Rusanu, A.; Brown, G.; Evans III, B.M., “Modeling and characterization of the

magnetocaloric effect in Ni2MnGa materials,” International Journal of Refrigeration 37, 289

(2014).

(149) Saparov, B.; Cantoni, C.; Pan, M.; Hogan, T.C.; Ratcliff II, W.; Wilson, S.D.; Fritsch, K.; Gaulin,

B.D.; Sefat, A.S., “Complex structures of different CaFe2As2 samples,” Scientific Reports 4, 4120

(2014).

Athena S. Sefat

10

(148) Tucker, G.S.; Fernandes, R.M.; Pratt, D.K.; Thaler, A.; Ni, N.; Marty, K.; Christianson, A.D.;

Lumsden, M.D.; Sales, B.C.; Sefat, A.S.; Bud’ko, S.L.; Canfield, P.C.; Kreyssig, A.; Goldman,

A.I.; McQueeney, R.J., “Crossover from spin waves to diffusive spin excitations in underdoped

Ba(Fe1-xCox)2As2,” Physical Review B 89, 180503(R) (2014).

(147) Uhoya, W.; Cargill, D.; Gofryk, K.; Tsoi, G.M.; Vohra, Y.K.; Sefat, A.S.; Weir, S.T., “High

pressure effects on the superconductivity in rare-earth-doped CaFe2As2,” High Pressure Research

34, 49 (2014).

(146) Uhoya, W.; Tsoi, G.M.; Vohra, Y.K.; Sefat, A.S.; Weir, S.T., “Pressure-induced superconductivity

and structural transitions in Ba(Fe0.9Ru0.1)2As2,” The European Physical Journal B 87, 68 (2014).

(145) Mohanty, D.; Huq, A.; Payzant, E.A.; Sefat, A.S.; Li, J.; Abraham, D.P.; Wood, D.L.; Daniel, C.,

“Neutron diffraction and magnetic susceptibility studies on a high-voltage Li1.2Mn0.55Ni0.15Co0.10O2

lithium ion battery cathode: Insight into the crystal structure,” Chemistry of Materials 25, 4064

(2013).

(144) Yan, J.Q.; Saparov, B.; Sefat, A.S.; Yang, H.; Cao, H.B.; Zhou, H.D.; Sales, B.C.; Mandrus, D.G.,

“Absence of structural transition in M0.5IrTe2 (M = Mn, Fe, Co, Ni),” Physical Review B 88, 134502

(2013).

(143) Yeon, J.; Smith, M.D.; Sefat, A.S.; Tran, T.T.; Halasyamani, P.S.; zur Loye, H.C., “U3F12(H2O), a

noncentrosymmetric uranium (IV) fluoride prepared via a convenient in situ route that creates U4+

under mild hydrothermal conditions,” Inorganic Chemistry 52, 8303 (2013).

(142) May, A.F.; McGuire, M.A.; Mitchell, J.E.; Sefat, A.S.; Sales, B.C., “Influence of spin fluctuations

on the thermal conductivity in superconducting Ba(Fe1-xCox)2As2,” Physical Review B 88, 064502

(2013).

(141) *Sefat, A.S., “Bulk synthesis of iron-based superconductors,” Current Opinion in Solid State &

Materials Science 17, 59 (2013).

(140) Saparov, B.; Singh, D.J.; Garlea, V.O.; Sefat, A.S., “Crystal, magnetic, and electronic structures,

and properties of new BaMnPnF (Pn = As, Sb, Bi),” Scientific Reports 3, 2154 (2013).

(139) Saparov, B.; Sefat, A.S., “Crystal, magnetic and electronic properties of a new ThCr2Si2-type

BaMn2Bi2 and K-doped compositions,” Journal of Solid State Chemistry 204, 32 (2013).

(138) Moon, S.J.; Schafgans, A.A.; Tanatar, M.A.; Prozorov, R.; Thaler, A.; Canfield, P.C.; Sefat, A.S.;

Mandrus, D.; Basov, D.N., “Interlayer coherence and superconducting condensate in the c-axis

response of optimally doped Ba(Fe1-xCox)2As2 high-Tc superconductor using infrared

spectroscopy,” Physical Review Letters 110, 097003 (2013).

(137) Sergueev, I.; Hermann, R.P.; Bessas, D.; Pelzer, U.; Angst, M.; Schweika, W.; McGuire, M.A.;

Sefat, A.S.; Sales, B.C.; Mandrus, D.; Ruffer, R., “Effect of pressure, temperature, fluorine doping,

and rare earth elements on the phonon density of states of LFeAsO studied by nuclear inelastic

scattering,” Physical Review B 87, 064302 (2013).

(136) Mohanty, D.; Sefat, A.S.; Kalnaus, S.; Li, J.; Meisner, R.A.; Payzant, E.A.; Abraham, D.P.; Wood,

D.L., “Investigating phase transformation in the Li1.2Co0.1Mn0.55Ni0.15O2 lithium-ion battery

cathode during high-voltage hold (4.5 V) via magnetic, X-ray diffraction and electron microscopy

studies,” Journal of Materials Chemistry A 1, 6249 (2013).

(135) Mohanty, D.; Kalnaus, S.; Meisner, R.A.; Sefat, A.S.; Li, J.; Payzant, E.A.; Rhodes, K.; Wood,

D.L.; Daniel, C., “Structural transformation in a Li1.2Co0.1Mn0.55Ni0.15O2 lithium-ion battery cathode

during high-voltage hold,” RSC Advances 3, 7479 (2013).

(134) Xu, N.; Richard, P.; Roekeghem, A.; Zhang, P.; Miao, H.; Zhang, W.L.; Qian, T.; Ferrero, M.;

Sefat, A.S.; Biermann, S.; Ding, H., “Electronic band structure of BaCo2As2: A fully doped

ferropnictide analog with reduced electronic correlations,” Physical Review X 3, 011006 (2013).

(133) Yeon, J.; Smith, M.D.; Sefat, A.S.; Loye, H.C., “Crystal growth, structural characterization, and

magnetic properties of new uranium (IV) containing mixed metal oxalates: Na2U2M(C2O4)6(H2O)4

(M = Mn2+, Fe2+, Co2+, and Zn2+),” Inorganic Chemistry 52, 2199 (2013).

Athena S. Sefat

11

(132) Yeon, J.; Sefat, A.S.; Tran, T.T.; Halasyamani, P.S.; Loye, H.C., “Crystal growth, structure,

polarization, and magnetic properties of cesium vanadate, Cs2V3O8: A structure-property study,”

Inorganic Chemistry 52, 6179 (2013).

(131) Christianson, A.D.; Lumsden, M.D.; Marty, K.; Wang, C.H.; Calder, S.; Abernathy, D.L.; Stone,

M.B.; Mook, H.A.; McGuire, M.A.; Sefat, A.S.; Sales, B.C.; Mandrus, D.; Goremychkin, E.A.,

“Doping dependence of the spin excitations in the Fe-based superconductors Fe1+yTe1-xSex,”

Physical Review B 87, 224410 (2013).

(130) Lin, W.; Li, Q.; Sales, B.C.; Jesse, S.; Sefat, A.S.; Kalinin, S.V.; Pan, M., “Direct probe of interplay

between local structure and superconductivity in FeTe0.55Se0.45,” ACS Nano 3, 2634 (2013).

(129) Lin, W.; Li, Q.; Belianinov, A.; Sales, B.C.; Sefat, A.S.; Gai, Z.; Baddorf, A.P.; Pan, M.; Jesse, S.;

Kalinin, S.V., “Local crystallography analysis for atomically resolved scanning tunneling

microscopy images,” Nanotechnology 24, 415707 (2013).

(128) Chance, W.M.; Bugaris, D.E.; Sefat, A.S.; Loye, H-C., “Crystal growth of new

hexahydroxometallates using a hydroflux,” Inorganic Chemistry 52, 11723 (2013).

(127) Mohanty, D.; Sefat, A.S.; Li, J.; Meisner, R.A.; Rondinone, A.J.; Payzant, E.A.; Abraham, D.P.;

Wood, D.L.; Daniel, C., “Correlating cation ordering and voltage fade in a lithium-manganese-rich

lithium-ion battery cathode oxide: a joint magnetic susceptibility and TEM study,” Physical

Chemistry Chemical Physics 15, 19496 (2013).

(126) Kim, J.; Civale, L.; Nazaretski, E.; Naberkorn, N.; Ronning, F.; Sefat, A.S.; Tajima, T.; Moeckly,

B.H.; Thompson, J.D.; Movshovich, R., “Direct measurement of the magnetic penetration depth by

magnetic force microscopy,” Superconductor Science and Technology 25, 112001 (2012).

(125) Fu, M.; Torchetti, D.A.; Imai, T.; Ning, F.L.; Yan, J.Q.; Sefat, A.S., “NMR search for spin nematic

state in a LaFeAsO single crystal,” Physical Review Letters 109, 247001 (2012).

(124) Mitchell, J.E.; Saparov, B.; Lin, W.; Calder, S.; Li, Q.; Kalinin, S.V.; Pan, M.; Christianson, A.D.;

Sefat, A.S., “Temperature-composition phase diagrams for Ba1-xSrxFe2As2 (0≤x≤1) and

superconducting Ba0.5Sr0.5(Fe1-yCoy)2As2 (0≤y≤0.141),” Physical Review B 86, 174511 (2012).

(123) Tsoi, G.M.; Malone, W.; Uhoya, W.; Mitchell, J.E.; Vohra, Y.K.; Wenger, L.E.; Sefat, A.S.; Weir,

S.T., “Pressure-induced superconductivity in Ba0.5Sr0.5Fe2As2,” Journal of Physics: Condensed

Matter 24, 495702 (2012).

(122) Li, G.; He, X.; Zhang, J.; Jin, R.; Sefat, A.S.; McGuire, M.A.; Mandrus, D.G.; Sales, B.C.;

Plummer, E.W., “Coupled structural and magnetic antiphase domain walls on BaFe2As2,” Physical

Review B 86, 060512(R) (2012).

(121) Uhoya, W.O.; Montgomery, J.M.; Samudrala, G.K.; Tsoi, G.M.; Vohra, Y.K.; Weir, S.T.; Sefat,

A.S., “High-pressure structural phase transitions in chromium-doped BaFe2As2,” Journal of

Physics: Conference Series 377, 012016 (2012).

(120) Schafgan, A.A.; Moon, S.J.; Pursley, B.C.; LaForge, A.D.; Qazibash, M.M.; Sefat, A.S.; Mandrus,

D.; Haule, K.; Katliar, G.; Basov, D.N., “Electronic correlations and unconventional spectral

weight transfer in the high-temperature pnictide BaFe2-xCoxAs2 superconductor using infrared

spectroscopy,” Physical Review Letters 108, 147002 (2012).

(119) Saparov, B.; Parker, D.S.; Sefat, A.S., “Crystal and electronic structures of metallic Ba2Pd5Ge4,”

Dalton Transactions 41, 12920 (2012).

(118) Saparov, B.; Mitchell, J.E.; Sefat, A.S., “Properties of Binary Transition-Metal Arsenides (TAs),”

Superconductor Science and Technology 25, 084016 (2012).

(117) Saparov, B.; Sefat, A.S., “Metallic properties of Ba2Cu3P4 and BaCu2Pn2 (Pn=As, Sb),” Journal of

Solid State Chemistry 191, 213 (2012).

(116) Ballinger, J.; Wenger, L.E.; Vohra, Y.K.; Sefat, A.S., “Magnetic properties of single crystal

EuCo2As2,” Journal of Applied Physics 111, 07E106 (2012).

(115) Cao, H.; Cantoni, C.; May, A.F.; McGuire, M.A.; Chakoumakos, B.C.; Pennycook, S.J.;

Custelcean, R.; Sefat, A.S.; Sales, B.C., “Evolution of the nuclear and magnetic structures of

TlFe1.6Se2 with temperature,” Physical Review B 85, 054515 (2012).

Athena S. Sefat

12

(114) Clancy, J.P.; Gaulin, B.D.; Sefat, A.S., “High-resolution x-ray scattering studies of structural phase

transitions in Ba(Fe1-xCrx)2As2,” Physical Review B 85, 054115 (2012).

(113) Dhital, C.; Yamani, Z.; Tian, W.; Zeretsky, J.; Sefat, A.S.; Wang, Z.; Birgeneau, R.J.; Wilson, S.D.,

“Effect of uniaxial strain on the structural and magnetic phase transitions in BaFe2As2,” Physical

Review Letters 108, 087001 (2012).

(112) Kim, J.S.; Faeth, B.D.; Wang, Y.; Hirschfeld, P.J.; Steward, G.R.; Gofryk, K.; Ronning, F.; Sefat,

A.S.; Choi, K.Y.; Kim, K.H., “Specific heat to Hc2: Evidence for nodes or deep minima in the

superconducting gap of underdoped and overdoped Ba(Fe1-xCox)2As2,” Physical Review B 86,

014513 (2012).

(111) Moon, S.J.; Schafgans, A.A.; Kasahara, S.; Shibauchi, T.; Terashima, T.; Matsuda, Y.; Tanatar,

M.A.; Prosorov, R.; Thaler, A.; Canfield, P.C.; Sefat, A.S.; Mandrus, D.; Basov, D.N., “Infrared

measurements of the pseudogap of P-doped and Co-doped high-temperature BaFe2As2

superconductors,” Physical Review Letters 109, 027006 (2012).

(110) Sefat, A.S.; Marty, K.; Christianson, A.D.; Saparov, B.; McGuire, M.A.; Lumsden, M.D.; Tian,

W.; Sales, B.C., “Effect of molybdenum 4d hole substitution in BaFe2As2,” Physical Review B 85,

024503 (2012).

(109) Vilmercati, P.; Fedorov, A.; Bondino, F.; Offi, F.; Panaccione, G.; Lacovig, P.; Simonelli, L.;

McGuire, M.A.; Sefat, A.S.; Mandrus, D.; Sales, B.C.; Egami, T.; Ku, W.; Mannella, N., “Itinerant

electrons, local moments, and magnetic correlations in the pnictide superconductors CeFeAsO1−xFx

and Sr(Fe1−xCox)2As2,” Physical Review B 85, 220503(R) (2012).

(108) Vilmercati, P.; Cheney, C.P.; Bondino, F.; Magnano, E.; Malvestuto, M.; McGuire, M.A.; Sefat,

A.S.; Sales, B.C.; Mandrus, D.; Singh, D.J.; Johannes, M.D.; Mannella, N., “Direct probe of the

variability of Coulomb correlation in iron pnictide superconductors,” Physical Review B 85,

235133 (2012).

(107) Saparov, B.; Calder, S.; Sipos, B.; Cao, H.; Chi, S.; Singh, D.J.; Christianson, A.D.; Lumsden,

M.D.; Sefat, A.S., “Spin glass and semiconducting behavior in one-dimensional BaFe2-δSe3 (δ ≈

0.2) crystals,” Physical Review B 84, 245132 (2011).

(106) Niedziela, J.L.; Parshall, D.; Lokshin, K.A.; Sefat, A.S.; Alatas, A.; Egami, T., “Phonon softening

near the structural transition in BaFe2As2 observed by inelastic x-ray scattering,” Physical Review

B 84, 224305 (2011).

(105) *Sefat, A.S., “Pressure effects on two superconducting iron-based families,” Reports on Progress

in Physics 74, 124502 (2011).

(104) Frontzek, M.; Haraldsen, J.T.; Podlesnyak, A.; Matsuda, M.; Christianson, A.D.; Fishman, R.S.;

Sefat, A.S.; Qiu, Y.; Copley, J.R.D.; Barilo, S.; Shiryaev, S.V.; Ehlers, G., “Magnetic excitations

in the geometric frustrated multiferroic CuCrO2,” Physical Review B 84, 094448 (2011).

(103) *Sefat, A.S.; Singh, D.J., “Chemistry and electronic structure of iron-based superconductors,”

Materials Research Society Bulletin 36, 614 (2011).

(102) Arsenijević, S.; Gaál, R.; Sefat, A.S.; McGuire, M.A.; Sales, B.C.; Mandrus, D.; Forró, L.,

“Pressure effects on the transport coefficients of Ba(Fe1-xCox)2As2,” Physical Review B 84, 075148

(2011).

(101) Schafgans, A.A.; Pursley, B.C.; LaForge, A.D.; Sefat, A.S.; Mandrus, D.; Basov, D.N., “Phonon

splitting and anomalous enhancement of infrared-active modes in BaFe2As2,” Physical Review B

84, 052501 (2011).

(100) Uhoya, W.O.; Tsoi, G.M.; Vohra, Y.K.; McGuire, M.A.; Sefat, A.S., “Structural phase transitions

in EuFe2As2 superconductor at low temperatures and high pressures,” Journal of Physics:

Condensed Matter 23, 365703 (2011).

(99) Goremychkin, E.A.; Osborn, R.; Wang, C.H.; Lumsden, M.D.; McGuire, M.A.; Sefat, A.S.; Sales,

B.C.; Mandrus, D.; Ronnow, H.M.; Su, Y.; Christianson, A.D., “Spatial inhomogeneity in

RFeAsO1-xFx (R = Pr, Nd) determined from rare-earth crystal-field excitations,” Physical Review B

83, 212505 (2011).

Athena S. Sefat

13

(98) Sales, B.C.; McGuire, M.A.; May, A.F.; Cao, H.B.; Chakoumakos, B.C.; Sefat, A.S., “Unusual

phase transitions and magnetoelastic coupling in TlFe1.6Se2 single crystals,” Physical Review B 83,

224510 (2011).

(97) He, X.; Li, G.; Zhang, J.; Karki, A.B.; Jin, R.; Sales, B.C.; Sefat, A.S.; McGuire, M.A.; Mandrus,

D.; Plummer, E.W., “Nanoscale chemical phase separation in FeTe0.55Se0.45 as seen via scanning

tunneling spectroscopy,” Physical Review B 83, 220502(R) (2011).

(96) Podlesnyak, A.; Ehlers, G.; Frontzek, M.; Sefat, A.S.; Furrer, A.; Strässle, Th.; Pomjakushina, E.;

Conder, K.; Demmel, F.; Khomskii, D.I., “Effect of carrier doping on the formation and collapse

of magnetic polarons in lightly hole-doped La1-xSrxCoO3,” Physical Review B 83, 134430 (2011).

(95) Bridges, C.A.; Sefat, A.S.; Payzant, E.A.; Cranswick, L.; Paranthaman, M.P., “Structure and

magnetic order in the series BixRE1-xFe0.5Mn0.5O3 (RE=La, Nd),” Journal of Solid State Chemistry

184, 830 (2011).

(94) Uhoya, W.O.; Montgomery, J.M.; Tsoi, G.M.; Vohra, Y.K.; McGuire, M.A.; Sefat, A.S.; Sales,

B.C.; Weir, S.T., “Phase transition and superconductivity of SrFe2As2 under high pressure,”

Journal of Physics: Condensed Matter 23, 122201 (2011).

(93) Zocco, D.A.; Baumbach, R.E.; Hamlin, J.J.; Janoschek, M.; Lum, I.K.; McGuire, M.A.; Sefat, A.S.;

Sales, B.C.; Jin, R.; Mandrus, D.; Jeffries, J.R.; Weir, S.T.; Vohra, Y.K.; Maple, M.B., “Search for

pressure-induced superconductivity in CeFeAsO and CeFePO iron pnictides,” Physical Review B

83, 094528 (2011).

(92) Sonier, J.E.; Huang, W.; Kaiser, C.V.; Cochrane, C.; Pacradouni, V.; Sabok-Sayr, S.A.; Lumsden,

M.D.; Sales, B.C.; McGuire, M.A.; Sefat, A.S.; Mandrus, D., “Magnetism and disorder effects on

muon spin rotation measurements of the magnetic penetration depth in iron-arsenic

superconductors,” Physical Review Letters 106, 127002 (2011).

(91) Sefat, A.S.; Singh, D.J.; Garlea, V.O.; Zuev, Y.L.; McGuire, M.A.; Sales, B.C., “Variation of

physical properties in the nominal Sr4V2O6Fe2As2,” Physica C: Superconductivity 471, 143 (2011).

(90) Marty, K.; Christianson, A.D.; Wang, C.H.; Matsuda, M.; Cao, H.; VanBebber, L.H.; Zarestky,

J.L.; Singh, D.J.; Sefat, A.S.; Lumsden, M.D., “Competing magnetic ground states in

nonsuperconducting Ba(Fe1-xCrx)2As2 as seen via neutron diffraction,” Physical Review B 83,

060509(R) (2011).

(89) Gofryk, K.; Vorontsov, A.B.; Vekhter, I.; Sefat, A.S.; Imai, T.; Bauer, E.D.; Thompson, J.D.;

Ronning, F., “Effect of annealing on the specific heat of Ba(Fe1-xCox)2As2,” Physical Review B 83,

064513 (2011).

(88) Ni, N.; Jia, S.; Samolyuk, G.D.; Kracher, A.; Sefat, A.S.; Bud’ko, S.L.; Canfield, P.C., “Physical

Properties of GdFe2(AlxZn1-x)20,” Physical Review B 83, 054416 (2011).

(87) Gofryk, K.; Sefat, A.S.; McGuire, M.A.; Sales, B.C.; Mandrus, D.; Imai, T.; Thompson, J.D.;

Bauer, E.D.; Ronning, F., “Effect of annealing on the specific heat of optimally doped

Ba(Fe0.92Co0.08)2As2,” Journal of Physics: Conference Series 273, 012094 (2011).

(86) McGuire, M.A.; Gout, D.J.; Garlea, V.O.; Sefat, A.S.; Sales, B.C.; Mandrus, D., “Magnetic phase

transitions in NdCoAsO,” Physical Review B 81, 104405 (2010).

(85) Kim, S-H.; Yeon, J.; Sefat, A.S.; Mandrus, D.G.; Halasyamani, P.S., “Stereo-active lone-pair

control on the ferromagnetic behavior in VO(SeO2OH)2: A new acentric ferromagnetic material,”

Chemistry of Materials 22, 6665 (2010).

(84) Ahilan, K.; Ning, F.L.; Imai, T.; Sefat, A.S.; McGuire, M.A.; Sales, B.C.; Mandrus, D.; Cheng, P.;

Shen, B.; Wen, H-H., “Superconductivity near a quantum critical point in Ba(Fe1-xCox)2As2,”

Physica C: Superconductivity 470, S273 (2010).

(83) Bishop, M.; Uhoya, W.; Tsoi, G.; Vohra, Y.K.; Sefat, A.S.; Sales, B.C., “Formation of collapsed

tetragonal phase in EuCo2As2 under high pressure,” Journal of Physics: Condensed Matter 22,

425701 (2010).

(82) Fernandes, R.M.; VanBebber, L.H.; Bhattacharya, S.; Chandra, P.; Keppens, V.; Mandrus, D.;

McGuire, M.A.; Sales, B.C.; Sefat, A.S.; Schmalian, J., “Effects of nematic fluctuations on the

elastic properties of iron arsenide superconductors,” Physical Review Letters 105, 157003 (2010).

Athena S. Sefat

14

(81) McGuire, M.A.; Sefat, A.S.; Sales, B.C.; Mandrus, D., “Iron substitution in NdCoAsO: Crystal

structure and magnetic phase diagram,” Physical Review B 82, 092404 (2010).

(80) Kim, S-H.; Halasyamani, P.S.; Melot, B.C.; Seshadri, R.; Green, M.A.; Sefat, A.S.; Mandrus, D.,

“Experimental and computational investigation of the polar ferrimagnet VOSe2O5,” Chemistry of

Materials 22, 5074 (2010).

(79) Uhoya, W.; Tsoi, G.; Vohra, Y.K.; McGuire, M.A.; Sefat, A.S.; Sales, B.C.; Mandrus, D.; Weir,

S.T., “Anomalous compressibility effects and superconductivity of EuFe2As2 under high

pressures,” Journal of Physics: Condensed Matter 22, 292202 (2010).

(78) Bondino, F.; Magnano, E.; Booth, C.H.; Offi, F.; Panaccione, G.; Malvestuto, M.; Paolicelli, G.;

Simonelli, L.; Parmigiani, F.; McGuire, M.A.; Sefat, A.S.; Sales, B.C.; Jin, R.; Vilmercati, P.;

Mandrus, D.; Singh, D.J.; Mannella, N., “Electronic Structure of CeFeAsO1-xFx (x=0, 0.11, and

0.12),” Physical Review B 82, 014529 (2010).

(77) Uhoya, W.; Tsoi, G.M.; Vohra, Y.K.; McGuire, M.A.; Sefat, A.S.; Sales, B.C.; Mandrus, D.; Weir,

S.T., “Structural and magnetic phase transitions in NdCoAsO under high pressures,” Journal of

Physics: Condensed Matter 22, 185702 (2010).

(76) Mook, H.A.; Lumsden, M.D.; Christianson, A.D.; Nagler, S.E.; Sales, B.C.; Jin, R.; McGuire,

M.A.; Sefat, A.S.; Mandrus, D.; Egami, T.; de la Cruz, C., “Unusual relationship between

magnetism and superconductivity in FeTe0.5Se0.5,” Physical Review Letters 104, 187002 (2010).

(75) Gofryk, K.; Sefat, A.S.; McGuire, M.A.; Sales, B.C.; Mandrus, D.; Thompson, J.D.; Bauer, E.D.;

Ronning, F., “Doping-dependent specific heat study of the superconducting gap in

Ba(Fe1−xCox)2As2,” Physical Review B 81, 184518 (2010).

(74) Jin, R.; Pan, M.H.; He, X.B.; Li, G.; Li, D.; Peng, R-W.; Thompson, J.R.; Sales, B.C.; Sefat, A.S.;

McGuire, M.A.; Mandrus, D.; Wendelken, J.F.; Keppens, V.; Plummer, E.W., “Electronic,

magnetic and optical properties of two Fe-based superconductors and related parent compounds,”

Superconductor Science and Technology 23, 054005 (2010).

(73) Lu, X.; Park, W.K.; Yuan, H.Q.; Chen, G.F.; Luo, G.L.; Wang, N.L.; Sefat, A.S.; McGuire, M.A.;

Jin, R.; Sales, B.C.; Mandrus, D.; Gillett, J.; Sebastian, S.E.; Greene, L.H., “Point-contact

spectroscopic studies on normal and superconducting AFe2As2-type iron pnictide single crystals,”

Superconductor Science and Technology 23, 054009 (2010).

(72) Cheney, C.P.; Bondino, F.; Callcott, T.A.; Vilmercati, P.; Ederer, D.; Magnano, E.; Malvestuto,

M.; Parmigiani, F.; Sefat, A.S.; McGuire, M.A.; Jin, R.; Sales, B.C.; Mandrus, D.; Singh, D.J.;

Freeland, J.W.; Mannella, N., “Orbital symmetry of Ba(Fe1-xCox)2As2 superconductors probed with

x-ray absorption spectroscopy,” Physical Review B 81, 104518 (2010).

(71) Delaire, O.; Lucas, M.S.; dos Santos, A.M.; Subedi, A.; Sefat, A.S.; McGuire, M.A.; Mauger, L.;

Munoz, J.A.; Tulk, C.A.; Xiao, Y.; Somayazulu, M.; Zhao, J.Y.; Sturhahn, W.; Alp, E.E.; Singh,

D.J.; Sales, B.C.; Mandrus, D.; Egami, T., “Temperature and pressure dependence of the Fe-

specific phonon density of states in Ba(Fe1−xCox)2As2,” Physical Review B 81, 094504 (2010).

(70) Sales, B.C.; McGuire, M.A.; Sefat, A.S.; Mandrus, D., “A semimetal model of the normal state

magnetic susceptibility and transport properties of Ba(Fe1-xCox)2As2,” Physica C:

Superconductivity 470, 304 (2010).

(69) Lumsden, M.D.; Christianson, A.D.; Goremychkin, E.A.; Nagler, S.E.; Mook, H.A.; Stone, M.B.;

Abernathy, D.L.; Guidi, T.; MacDougall, G.J.; de la Cruz, C.; Sefat, A.S.; McGuire, M.A.; Sales,

B.C.; Mandrus, D., “Evolution of spin excitations into the superconducting state in FeTe1-xSex,”

Nature Physics 6, 182 (2010).

(68) Putti, M.; Pallecchi, I.; Bellingeri, E.; Cimberle, M.R.; Tropeano, M.; Ferdeghini, C.; Palenzona,

A.; Tarantini, C.; Yamamoto, A.; Jiang, J.; Jaroszynski, J.; Kametani, F.; Abraimov, D.; Polyanskii,

A.; Weiss, J.D.; Hellstrom, E.E.; Gurevich, A.; Larbalestier, D.C.; Jin, R.; Sales, B.C.; Sefat, A.S.;

McGuire, M.A.; Mandrus, D.; Cheng, P.; Jia, Y.; Wen, H.H.; Lee, S.; Eom, C.B., “New Fe-based

superconductors: properties relevant for applications,” Superconductor Science and Technology

23, 034003 (2010).

Athena S. Sefat

15

(67) Gofryk, K.; Sefat, A.S.; Bauer, E.D.; McGuire, M.A.; Sales, B.C.; Mandrus, D.; Thompson, J.D.;

Ronning, F., “Gap structure in the electron-doped iron-arsenide superconductor

Ba(Fe0.92Co0.08)2As2: low-temperature specific heat study,” New Journal of Physics 12, 023006

(2010).

(66) Mandrus, D.; Sefat, A.S.; McGuire, M.A.; Sales, B.C., “Materials Chemistry of BaFe2As2: A Model

Platform for Unconventional Superconductivity,” Chemistry of Materials 22, 715 (2010).

(65) Ning, F.L.; Ahilan, K.; Imai, T.; Sefat, A.S.; McGuire, M.A.; Sales, B.C.; Mandrus, D.; Cheng, P.;

Shen, B.; Wen, H-H., “Contrasting Spin Dynamics between Underdoped and Overdoped Ba(Fe1-

xCox)2As2,” Physical Review Letters 104, 037001 (2010).

(64) Uhoya, W.; Stemshorn, A.; Tsoi, G.; Vohra, Y.K.; Sefat, A.S.; Sales, B.C.; Hope, K.M.; Weir, S.T.,

“Collapsed tetragonal phase and superconductivity of BaFe2As2 under high pressure,” Physical

Review B 82, 144118 (2010).

(63) Vilmercati, P.; Fedorov, A.; Vobornik, I.; Manju, U.; Panaccione, G.; Goldoni, A.; Sefat A.S.;

McGuire, M.A.; Sales, B.C.; Jin, R.; Mandrus, D.; Singh, D.J.; Mannella, N., “Evidence for three-

dimensional Fermi-surface topology of the layered electron-doped iron superconductor Ba(Fe1-

xCox)2As2,” Physical Review B 79, 220503(R) (2009).

(62) Kim, T-H.; Jin, R.; Walker, L.R.; Howe, J.Y.; Pan, M.H.; Wendelken, J.F.; Thompson, J.R.; Sefat,

A.S.; McGuire, M.A.; Sales, B.C.; Mandrus, D.; Li, A-P., “Probing microscopic variations of

superconductivity on the surface of Ba(Fe1-xCox)2As2 single crystals,” Physical Review B 80,

214518 (2009).

(61) Reznik, D.; Lokshin, K.; Mitchell, D.C.; Parshall, D.; Dmowski, W.; Lamago, D.; Heid, R.;

Bohnen, K.P.; Sefat, A.S.; McGuire, M.A.; Sales, B.C.; Mandrus, D.G.; Subedi, A.; Singh, D.J.;

Alatas, A.; Upton, M.H.; Said, A.H.; Cunsolo, A.; Shvyd'ko, Y.; Egami, T., “Phonons in doped and

undoped BaFe2As2 investigated by inelastic x-ray scattering,” Physical Review B 80, 214534

(2009).

(60) Bud'ko S.L.; Canfield, P.C.; Sefat, A.S.; Sales, B.C.; McGuire, M.A.; Mandrus, D., “Anisotropic

thermal expansion of Fe1.06Te and FeTe0.5Se0.5 single crystals,” Physical Review B 80, 134523

(2009).

(59) Maple, M.B.; Baumbach, R.E.; Hamlin, J.J.; Zocco, D.A.; Taylor, B.J.; Butch, N.P.; Jeffries, J.R.;

Weir, S.T.; Sales, B.C.; Mandrus, D.; McGuire, M.A.; Sefat, A.S.; Jin, R.; Vohra, Y.K.; Chu, J-H.;

Fisher, I.R., “New correlated electron physics from new materials,” Physica B 404, 2924 (2009).

(58) Christianson, A.D.; Lumsden, M.D.; Nagler, S.E.; MacDougall, G.J.; McGuire, M.A.; Sefat, A.S.;

Jin, R.; Sales, B.C.; Mandrus, D., “Static and dynamic magnetism in underdoped superconductor

BaFe1.92Co0.08As2,” Physical Review Letters 103, 087002 (2009).

(57) Kano, M.; Kohama, Y.; Graf, D.; Balakirev, F.; Sefat, A.S.; McGuire, M.A.; Sales, B.C.; Mandrus,

D.; Tozer, S.W., “Anisotropy of the Upper Critical Field in a Co-Doped BaFe2As2 Single Crystal,”

Journal of the Physical Society of Japan 78, 084719 (2009).

(56) Nascimento, V.B.; Li, A.; Jayasundara, D.R.; Xuan, Y.; O’Neal, J.; Pan, S.H.; Chien, T.Y.; Hu, B.;

He, X.B.; Li, G.R.; Sefat, A.S.; McGuire, M.A.; Sales, B.C.; Mandrus, D.; Pan, M.H.; Zhang, J.D.;

Jin, R.; Plummer, E.W., “Surface Geometric and Electronic Structures of BaFe2As2 (001),”

Physical Review Letters 103, 076104 (2009).

(55) McGuire, M.A.; Singh, D.J.; Sefat, A.S.; Sales, B.C.; Mandrus, D., “Suppression of spin density

wave by isoelectronic substitution in PrFe1-xRuxAsO,” Journal of Solid State Chemistry 182, 2326

(2009).

(54) Parshall, D.; Lokshin, K.A.; Niedziela, J.; Christianson, A.D.; Lumsden, M.D.; Mook, H.A.;

Nagler, S.E.; McGuire, M.A.; Stone, M.B.; Abernathy, D.L.; Sefat, A.S.; Sales, B.C.; Mandrus,

D.G.; Egami, T., “Spin excitations in BaFe1.84Co0.16As2 superconductor observed by inelastic

neutron scattering,” Physical Review B 80, 012502 (2009).

(53) Kurita, N.; Ronning, F.; Miclea, C.F.; Bauer, E.D.; Thompson, J.D.; Sefat, A.S.; McGuire, M.A.;

Sales, B.C.; Mandrus, D.; Movshovich, R., “Low-temperature thermal conductivity of BaFe2As2:

A parent compound of iron arsenide superconductors,” Physical Review B 79, 214439 (2009).

Athena S. Sefat

16

(52) da Luz, M.S.; Neumeier, J.J.; Bollinger, R.K.; Sefat, A.S.; McGuire, M.A.; Jin, R.; Sales, B.C.;

Mandrus, D., “High-resolution measurements of the thermal expansion of superconducting Co-

doped BaFe2As2,” Physical Review B 79, 214505 (2009).

(51) Ahilan, K.; Ning, F.L.; Imai, T.; Sefat, A.S.; McGuire, M.A.; Sales, B.C.; Mandrus, D., “Electronic

phase diagram of the iron-based high-Tc superconductor Ba(Fe1-xCox)2As2 under hydrostatic

pressure (0≤x≤0.099),” Physical Review B 79, 214520 (2009).

(50) Vilmercati, P.; Fedorov, A.; Vobornik, I.; Manju, U.; Panaccione, G.; Goldoni, A.; Sefat, A.S.;

McGuire, M.A.; Sales, B.C.; Jin, R.; Mandrus, D.; Singh, D.J.; Mannella, N., “Evidence for three-

dimensional Fermi-surface topology of the layered electron-doped iron superconductor Ba(Fe1-

xCox)2As2,” Physical Review B 79, 220503(R) (2009).

(49) Zuev, Y.L.; Specht, E.D.; Cantoni, C.; Christen, D.K.; Thompson, J.R.; Jin, R.; Sefat, A.S.;

Mandrus, D.G.; McGuire, M.A.; Sales, B.C., “Aligned crystallite powder of NdFeAsO0.86F0.14:

Magnetic hysteresis and penetration depth,” Physical Review B 79, 224523 (2009).

(48) Sefat, A.S.; Singh, D.J.; VanBebber, L.H.; Mozharivskyj, Y.; McGuire, M.A.; Jin, R.; Sales, B.C.;

Keppens, V.; Mandrus, D., “Absence of superconductivity in hole-doped BaFe2-xCrxAs2 single

crystals,” Physical Review B 79, 224524 (2009).

(47) *Sefat, A.S.; Singh, D.J.; Jin, R.; McGuire, M.A.; Sales, B.C.; Ronning, F.; Mandrus D., “BaT2As2

single crystals (T = Fe, Co, Ni) and superconductivity upon Co-doping,” Physica C:

Superconductivity 469, 350 (2009).

(46) *Ronning, F.; Bauer, E.D.; Park, T.; Kurita, N.; Klimczuk, T.; Movshovich, R.; Sefat, A.S.;

Mandrus, D.; Thompson, J.D., “Ni2X2 (X = pnictide, chalcogenide, or B) based superconductors,”

Physica C: Superconductivity 469, 396 (2009).

(45) Sefat, A.S.; Bud’ko, S.L.; Canfield, P.C., “Properties of RRe2Al10 (R=Y, Gd-Lu) crystals,” Physical

Review B 79, 174429 (2009).

(44) Singh, D.J.; Sefat, A.S.; McGuire, M.A.; Sales, B.C.; Mandrus, D.; VanBebber, L.H.; Keppens, V.,

“Itinerant antiferromagnetism in BaCr2As2: Experimental characterization and electronic structure

calculations,” Physical Review B 79, 094429 (2009).

(43) Sefat, A.S.; McGuire, M.A.; Jin, R.; Sales, B.C.; Mandrus, D.; Ronning, F.; Bauer, E.D.;

Mozharivskyj, Y., “Structure and anisotropic properties of BaFe2-xNixAs2 (x=0, 1, and 2) single

crystals,” Physical Review B 79, 094508 (2009).

(42) Sales, B.C.; Sefat, A.S.; McGuire, M.A.; Jin, R.Y.; Mandrus, D.; Mozharivskyj, Y., “Bulk

superconductivity at 14 K in single crystals of Fe1+yTexSe1-x,” Physical Review B 79, 094521

(2009).

(41) Lumsden, M.D.; Christianson, A.D.; Parshall, D.; Stone, M.B.; Nagler, S.E.; MacDougall, G.J.;

Mook, H.A.; Lokshin, K.; Egami, T.; Abernathy, D.L.; Goremychkin, E.A.; Osborn, R.; McGuire,

M.A.; Sefat, A.S.; Jin, R.; Sales, B.C.; Mandrus, D., “Two-dimensional resonant magnetic

excitation in BaFe1.84Co0.16As2,” Physical Review Letters 102, 107005 (2009).

(40) An, J.; Sefat, A.S.; Singh, D.J.; Du, M-H., “Electronic structure and magnetism in BaMn2As2 and

BaMn2Sb2,” Physical Review B 79, 075120 (2009).

(39) McGuire, M.A.; Hermann, R.P.; Sefat, A.S.; Sales, B.C.; Jin, R.; Mandrus, D.; Grandjean, F.; Long,

G.J., “Influence of the rare-earth element on the effects of the structural and magnetic phase

transitions in CeFeAsO, PrFeAsO and NdFeAsO,” New Journal of Physics 11, 025011 (2009).

(38) Yamamoto, A.; Jaroszynski, J.; Tarantini, C.; Balicas, L.; Jiang, J.; Gurevich, A.; Larbalestier,

D.C.; Jin, R.; Sefat, A.S.; McGuire, M.A.; Sales, B.C.; Christen, D.K.; Mandrus, D., “Small

anisotropy, weak thermal fluctuations, and high field superconductivity in Co-doped iron pnictide

Ba(Fe1-xCox)2As2,” Applied Physics Letters 94, 062511 (2009).

(37) Ning, F.L.; Ahilan, K.; Imai, T.; Sefat, A.S.; Jin, R.; McGuire, M.A.; Sales, B.C.; Mandrus, D.,

“Spin susceptibility, phase diagram, and quantum criticality in the electron-doped high Tc

superconductor Ba(Fe1-xCox)2As2,” Journal of the Physical Society of Japan 78, 013711 (2009).

Athena S. Sefat

17

(36) Imai, T.; Ahilan, K.; Ning, F.; McGuire, M.A.; Sefat, A.S.; Jin, R.; Sales, B.C.; Mandrus, D., “NMR

measurements of intrinsic spin susceptibility in LaFeAsO0.9F0.1,” Journal of the Physical Society of

Japan 77, 47 (2008).

(35) Sefat, A.S.; Singh, D.J.; Jin, R.; McGuire, M.A.; Sales, B.C.; Mandrus, D., “Renormalized behavior

and proximity of BaCo2As2 to a magnetic quantum critical point,” Physical Review B 79, 024512

(2009).

(34) Ning, F.L.; Ahilan, K.; Imai, T.; Sefat, A.S.; Jin, R.; McGuire, M.A.; Sales, B.C.; Mandrus, D.,

“59Co and 75As NMR investigation of electron-doped high Tc superconductor BaFe1.8Co0.2As2 (Tc =

22 K),” Journal of the Physical Society of Japan 77, 103705 (2008).

(33) Bondino, F.; Magnano, E.; Malvestuto, M.; Parmigiani, F.; McGuire, M.A.; Sefat, A.S.; Sales,

B.C.; Jin, R.; Mandrus, D.; Plummer, E.W.; Singh, D.J.; Mannella, N., “Evidence for strong

itinerant spin fluctuations in the normal state of CeFeAsO0.89F0.11 iron-oxypnictide

superconductors,” Physical Review Letters 101, 267001 (2008).

(32) Ahilan, K.; Balasubramaniam, J.; Ning, F.L.; Imai, T.; Sefat, A.S.; Jin, R.; McGuire, M.A.; Sales,

B.C.; Mandrus, D., “Pressure effects on the electron-doped high Tc superconductor BaFe2-xCoxAs2,”

Journal of Physics: Condensed Matter 20, 472201 (2008).

(31) Christianson, A.D.; Lumsden, M.D.; Delaire, O.; Stone, M.B.; Abernathy, D.L.; McGuire, M.A.;

Sefat, A.S.; Jin, R.; Sales, B.C.; Mandrus, D.; Mun, E.D.; Canfield, P.C.; Lin, J.Y.Y.; Lucas, M.;

Kresch, M.; Keith, J.B.; Fultz, B.; Goremychkin, E.A.; McQueeney, R.J., “Phonon density of states

of LaFeAsO1-xFx,” Physical Review Letters 101, 157004 (2008).

(30) Zocco, D.A.; Hamlin, J.J.; Baumbach, R.E.; Maple, M.B.; McGuire, M.A.; Sefat, A.S.; Sales, B.C.;

Jin, R.; Mandrus, D.; Jeffries, J.R.; Weir, S.T.; Vohra, Y.K., “Effect of pressure on the

superconducting critical temperature of La[O0.89F0.11 ]FeAs and Ce[O0.88F0.12]FeAs,” Physica C:

Superconductivity 468, 2229 (2008).

(29) Ahilan, K.; Ning, F.L.; Imai, T.; Sefat, A.S.; Jin, R.; McGuire, M.A.; Sales, B.C.; Mandrus, D.,

“19F NMR investigation of the iron pnictide superconductor LaFeAsO0.89F0.11,” Physical Review B

78, 100501(R) (2008).

(28) Sefat, A.S.; Huq, A.; McGuire, M.A.; Jin, R.; Sales, B.C.; Mandrus, D.; Cranswick, L.M.D.;

Stephens, P.W.; Stone, K.H., “Superconductivity in LaFe1-xCoxAsO,” Physical Review B 78,

104505 (2008).

(27) McGuire, M.A.; Christianson, A.D.; Sefat, A.S.; Sales, B.C.; Lumsden, M.D.; Jin, R.; Payzant,

E.A.; Mandrus, D.; Luan, Y.; Keppens, V.; Varadarajan, V.; Brill, J.W.; Hermann, R.P.; Sougrati,

M.T.; Grandjean, F.; Long, G.J., “Phase transitions in LaFeAsO: Structural, magnetic, elastic, and

transport properties, heat capacity and Mössbauer spectra,” Physical Review B 78, 094517 (2008).

(26) Sefat, A.S.; Jin, R.; McGuire, M.A.; Sales, B.C.; Singh, D.J.; Mandrus, D., “Superconductivity at

22 K in Co-doped BaFe2As2 crystals,” Physical Review Letters 101, 117004 (2008).

(25) Jaroszynski, J.; Rigg, S.C.; Hunte, F.; Gurevich, A.; Larbalestier, D.C.; Boebinger, G.S.; Balakirev,

F.F.; Migliori, A.; Zen, Z.A.; Lu, W.; Yang, J.; Shen, X.L.; Dong, X.L.; Zhao, Z.X.; Jin, R.; Sefat,

A.S.; McGuire, M.A.; Sales, B.C.; Christen, D.K.; Mandrus, D., “Comparative high-field

magnetotransport of the oxypnictide superconductor RFeAsO1-xFx (R=La, Nd) and SmFeAsO1-δ,”

Physical Review B 78, 064511 (2008).

(24) Yamamoto, A.; Jiang, J.; Tarantini, C.; Craig, N.; Polyanskii, A.A.; Kametani, F.; Hunte, F.;

Jaroszynski, J.; Hellstrom, E.E.; Larbalestier, D.C.; Jin, R.; Sefat, A.S.; McGuire, M.A.; Sales,

B.C.; Christen, D.K.; Mandrus, D., “Evidence for electromagnetic granularity in the polycrystalline

iron-based superconductor LaO0.89F0.11FeAs,” Applied Physics Letters 92, 252501 (2008).

(23) Sefat, A.S.; McGuire, M.A.; Sales, B.C.; Jin, R.; Howe, J.Y.; Mandrus, D., “Electronic correlations

in the superconductor LaFeAsO0.89F0.11 with low carrier density,” Physical Review B 77, 174503

(2008).

(22) Baek, J.; Sefat, A.S.; Mandrus, D.; Halasyamani, P.S., “A new magnetically ordered polymorph of

CuMoO4: Synthesis and characterization of Ɛ-CuMoO4,” Chemistry of Materials 20, 3785 (2008).

Athena S. Sefat

18

(21) Hunte, F.; Jaroszynski, J.; Gurevich, A.; Larbalestier, D.C.; Jin, R.; Sefat, A.S.; McGuire, M.A.;

Sales, B.C.; Christen, D.K.; Mandrus, D., “Two-band superconductivity in LaFeAsO0.89F0.11 at very

high magnetic fields,” Nature 453, 903 (2008).

(20) Sefat, A. S.; Bud’ko, S. L. Canfield, P. C., “Magnetic properties of off-stoichiometric R2Co3Zn14

(R = Y, Gd) single crystals,” Journal of Magnetism and Magnetic Materials 320, 1035 (2008).

(19) Sefat, A.S.; Palasyuk, A.M.; Bud’ko, S.L.; Corbett, J.D.; Canfield, P.C., “Crystal structures and

magnetic properties of CeAu4Si2 and CeAu2Si2,” Journal of Solid State Chemistry 181, 282 (2008).

(18) Jia, S.; Ni, N.; Safa-Sefat, A.; Dennis, K.; Ko, H.; Miller, G.J.; Bud’ko, S.L.; Canfield, P.C.,

“Variation of the magnetic ordering in GdT2Zn20 (T=Fe, Ru, Os, Co, Rh and Ir) and its correlation

with the electronic structure of isostructural YT2Zn20,” Physical Review B 77, 104408 (2008).

(17) Sefat, A.S.; Bud’ko, S.L.; Canfield, P.C., “Magnetization, resistivity and heat capacity of the

anisotropic RVSb3 crystals (R=La-Nd, Sm, Gd-Dy),” Journal of Magnetism and Magnetic

Materials 320, 120 (2008).

(16) Vannette, M.D.; Sefat, A.S.; Jia, S.; Law, S.A.; Lapertot, G.; Bud’ko, S.L.; Canfield, P.C.;

Schmalian, J.; Prozorov, R., “Precise measurements of radio-frequency magnetic susceptibility in

ferromagnetic and antiferromagnetic materials,” Journal of Magnetism and Magnetic Materials

320, 354 (2008).

(15) Sefat, A.S.; Li, B.; Bud’ko, S.L.; Canfield, P.C., “Magnetic behavior of RMn2+xAl10-x (R=La,Gd)

crystals,” Physical Review B 76, 174419 (2007).

(14) Sefat, A.S.; Greedan, J.E.; Cranswick, L., “Effect of hole doping on the magnetic properties of the

Mott-Hubbard antiferromagnetic insulator Nd1-xTiO3,” Physical Review B 74, 104418 (2006).

(13) Sefat, A.S.; Greedan, J.E.; Luke, G.M.; Niewczas, M.; Garrett, J.D.; Dabkowska, H.; Dabkowski,

A., “Anderson-Mott transition induced by hole doping in Nd1-xTiO3,” Physical Review B 74,

104419 (2006).

(12) Yan, B.; Luo, J.; Dube, P.; Sefat, A.S.; Greedan, J.E.; Maggard, P.A., “Spin-gap formation and

thermal structural studies in reduced hybrid layered vanadates,” Inorganic Chemistry 45, 5109

(2006).

(11) Yang, J.; Hwang, J.; Timusk, T.; Sefat, A.S.; Greedan, J.E., “Temperature-dependent optical

spectroscopy studies of Nd1-xTiO3,” Physical Review B 73, 195125 (2006).

(10) Sefat, A.S.; Amow, G.; Wu, M-Y.; Botton, G.A.; Greedan, J.E., “High-resolution EELS study of

the vacancy-doped metal/insulator system, Nd1-xTiO3, x = 0 to 0.33,” Journal of Solid State

Chemistry 178, 1008 (2005).

(9) Sefat, A.S.; Greedan, J.E., “A reinterpretation of the magnetic properties of the mixed-valence

(NbV/NbIV) Zintle phase, Cs9Nb2As6,” Inorganic Chemistry 43, 142 (2004)

(8) Kolodiazhnyi, T.; Petric, A.; Niewczas, M.; Bridges, C.; Safa-Sefat, A.; Greedan, J.E.,

“Thermoelectric power, Hall effect, and mobility of n-type BaTiO3,” Physical Review B 68, 085205

(2003).

(7) Silva, D.C.C.; Crosnier, O.; Ouvrard, G.; Greedan, J.E.; Safa-Sefat, A.; Nazar, L.F., “Reversible

lithium uptake by FeP2,” Electrochemical and Solid-State Letters 6, A162 (2003).

(6) Lee, C-S.; Safa-Sefat, A.; Greedan, J.E.; Kleinke, H., “Synthesis, structure, and physical properties

of mixed valent Mo2SbS2, the first superconducting antimonide sulfide,” Chemistry of Materials

15, 780 (2003).

(5) Berenbaum, A.; Ginzburg-Margau, M.; Coombs, N.; Lough, A.J.; Safa-Sefat, A.; Greedan, J.E.;

Ozin, G.A.; Manners, I., “Ceramics containing magnetic Co-Fe alloy nanoparticles from the

pyrolysis of a highly metallized organometallic polymer precursor,” Advanced Materials 15, 51

(2003).

(4) Kulbaba, K.; Cheng, A.; Bartole, A.; Greenberg, S.; Resendes, R.; Coombs, N.; Safa-Sefat, A.;

Greedan, J.E.; Stover, H.D.H.; Ozin, G.A.; Manners, I., “Polyferrocenylsilane microspheres:

Synthesis, mechanism of formation, size and charge tunability, electrostatic self-assembly, and

pyrolysis to spherical magnetic ceramic particles,” Journal of the American Chemical Society 124

(2002), 12522.

Athena S. Sefat

19

(3) Galloro, J.; Ginzburg, M.; Miguez, H.; Yang, S.M.; Coombs, N.; Safa-Sefat, A.; Greedan, J.E.;

Manners, I.; Ozin, G. A., “Replicating the structure of a crosslinked polyferrocenylsilane inverse

opal in the form of a magnetic ceramic,” Advanced Functional Materials 12, 382 (2002).

(2) Botton, G.A.; Safa-Sefat, A.; Greedan, J.E., “Probing the metal-insulator transitions in complex

oxides with EELS near edge structures,” Microscopy and Microanalysis 8 (Suppl. S02), 580

(2002).

(1) Kulbaba, K.; Resendes, R.; Cheng, A.; Bartole, A.; Safa-Sefat, A.; Coombs, N.; Stover, H.;

Greedan, J.E.; Ozin, G.A.; Manners, I., “Polyferrocenylsilane and magnetic ceramic

microspheres,” Advanced Materials 13, 732 (2001).

PATENT

B. M. Evans III, G. M. Ludtka, D. M. Nicholson, O. Rios, A. Safa-Sefat, D. L. West, “Iron-Based

Composition for Magnetocaloric Effect (MCE) Applications and Method of Making a Single Crystal,”

2016. U.S. Patent No. 9,255,343.

BOOK CHAPTER

A. S. Sefat, “A Few Highlights on High-Tc Conductor Tl(1223),” chapter in 2nd Edition of

Handbook of Superconducting Materials. Editors D. Cardwell and D. Larbalestier, CRC Press-

Taylor & Francis Group, In press (2019).

RESEARCH SUPPORT

PI DOE BES Project, MSE Division (ERKCK25): “Probing Competing Chemical, Electronic, &

Spin Correlations for Quantum Materials Functionality” (2015 – present)

PI DOE’s ECA (ERKCM70): “Origin of Superconductivity in Structurally Layered Materials”

(2010 – 2015)

PI ORNL LDRD, SEED (6677): “Synthesis and Wire Development of Fe-Selenide

Superconductors (FS)” (2012 – 2013)

PI ORNL LDRD (6741): “Exploration of Superconductivity in Non-Layered Three-Dimensional

(3D) Materials” (2013 – 2014)

INVITED TALKS (2010 – PRESENT)

1. Energy Materials Nanotechnology West Meeting: “Superconductivity in iron-based arsenides,”

Orlando, FL (2017)

2. Office of BES: “Probing competing chemical, electronic, and spin correlations for materials

functionality,” Germantown, MD (2016)

3. 18th ICCGE: “Preparation of iron-based pnictide and chalcogenide crystals for the studies of

properties,” Shiga, Japan (2016)

4. Gordon Research Conference, Solid State Chemistry Meeting on Energy Materials of the Future:

“Collective phenomena through microscopic effects,” New London, NH (2016)

5. U.S. Civilian Research and Development Foundation, CRDF-Global: “Collective exotic

phenomena in energy materials,” Doha, Qatar (2015)

6. APS March Meeting: “Novel materials and multi-scale analysis of the superconducting state in

iron-based superconductors,” San Antonio, TX (2015)

7. 27th International Symposium on Superconductivity: “Collective phenomena through microscopic

effects,” Tokyo, Japan (2014)

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8. The Beijing International Workshop on Iron-Based Superconductors: “Research on novel materials

and multi-scale analysis of the superconducting state,” Beijing, China (2014)

9. Workshop on New Directions and Opportunities for Small-Angle Neutron Scattering in Condensed

Matter Science: “Tuning of crystals on atomic scales,” ORNL (2014)

10. Energy Materials Nanotechnology Summer Meeting; Iron and Iridium based Superconductivity:

“Some of the superconductivity research at ORNL,” Cancun, Mexico (2014)

11. The Spring School and Educational Courses and 4th ICSM: “Fundamental research:

Superconducting materials synthesis and characterization,” Antalya, Turkey (2014)

12. APS March Meeting, Lunch with the Experts; “Superconducting materials growth and design,”

Denver, CO (2014)

13. National Institute for Materials Science: “Superconductivity research at ORNL,” Tsukuba, Japan

(2013)

14. International Workshop on Novel Superconductors and Super Materials 2013: “A few notes about

the superconductivity research at ORNL,” Tokyo, Japan (2013)

15. APS March Meeting, Tutorial Session: “Synthesis of iron-based superconductors: Building from

atoms up,” Boston, MA (2012)

16. APS March Meeting: “Exploration of superconductivity in layered structures,” Boston, MA (2012)

17. Materials and Mechanisms of Superconductivity Conference: “Materials perspective on the iron-

based superconductors: Insights into the superconductivity mechanism,” Washington, DC (2012)

18. 2nd BIMR Summer School on Modern Methods of Crystal Growth: “Chemistry: Solid state

reaction, flux and Bridgman methods,” McMaster University, ON, Canada (2012)

19. MRS Meeting: “Chemical doping in iron-based superconductors,” San Francisco, CA (2011)

20. North American Solid State Chemistry Conference: “Copper- and iron-based superconductors: A

few lessons learned,” ON, Canada (2011)

21. Conference on Magnetism and Magnetic Material: “Substitutional doping on the iron site: The

super-surprise,” Atlanta, GA (2010)

22. UCSB-ICMR Synthesis Summer School: “Flux method for preparing crystals of main group

compounds,” University of California, Santa Barbara, CA (2010)

23. 1st BIMR Summer School on Modern Methods of Crystal Growth: “Chemistry and flux method,”

McMaster University, ON, Canada (2010)

24. The International Conference on Strongly Correlated Electron Systems: “Unconventional

superconductivity in the simple BaFe2As2 and the more complex structures,” Santa Fe, NM (2010)

25. APS March Meeting: “Synthesis and doping of LaFeAsO, BaFe2As2, and FeTe compounds,”

Portland, OR (2010)

GRADUATE AND POSTDOCTORAL ADVISORS

Postdoc/fellowship advisors: Paul Canfield, Iowa State University and Ames Laboratory; David

Mandrus, University of Tennessee and ORNL

PhD advisors: John Greedan (and Bruce Gaulin, Graeme Luke) McMaster University, Canada

SUPERVISORY EXPERIENCE

• Visiting Faculty - Supervised and Funded

Anota Ijaduola, University of North Georgia (summer 2013 and 2017)

• Distinguished Staff - Co-supervised and Co-funded

Dr. David Parker, MSTD (2013 – Present)

Dr. Zheng Gai, The Center for Nanophase Materials Sciences Division (2015 – present)

Dr. Claudia Cantoni, MSTD (2012 – 2014)

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• Postdoctoral Scholars

Supervised and Funded

Bayram Saparov (2011 – 2013)

Kris Gofryk (2013 – 2014)

Shipra Singh (2014)

Daniel Hillesheim (2014)

Li Li (2014 – 2017)

Qiang Zheng (2016)

Duminda Sanjeewa (January 2018 – Present)

Jie Xing (November 2018 – Present)

Timothy Ferreira (July 2019 –)

Co-Supervised and Co-Funded

Shivani Rajput (2016)

Giang Nguyen (2017)

Zhuozhi Ge (2019)

Co-Supervised

Qiang Zou (2016 – Present)

Keith Taddei (2017 – Present)

Debasish Mohanty (2013 – 2017)

• Lab Technician - Supervised and Funded

Jonathan Mitchell (2011 – 2013)

• Students – Co-Supervised and Co-Funded

Michael Kuhn (University of Notre Dame): PhD student, SCGSR Fellowship (2015 – 2016)

Lance Konzen (University of California, San Diego): Undergraduate student (summer 2016)

Jordan Ermentrout (Allegheny College): Undergraduate student (summer 2015)

Zachary Sims (University of Tennessee): Undergraduate student (summer 2014)

Lindsay VanBebber (University of Tennessee): PhD student (2008 – 2010)

Walter Uhoya (University of Alabama at Birmingham): PhD student (2010 – 2013)