part i: plenary session itoshom02.nifs.ac.jp/opac/jsp/images/mokuji/10130508.pdf · part v: invited...
TRANSCRIPT
Contents
PREFACE xxv
ACKNOWLEDGMENTS xxvii
MATERIALS RESEARCH SOCIETY SYMPOSIUM PROCEEDINGS xxix
PART I: PLENARY SESSION I
OXIDE SUPERCONDUCTORS: A CHEMIST'S VIEW 3A.W. Sleight
NEUTRON DIFFRACTION STUDIES OF HIGH Tc SUPERCONDUCTORS 9D.G. Hinks, B. Dabrowski, K. Zhang, C.U. Segre,J, D, Jorgensen, L, Soderholm, and M.A. Beno
Ba2YCu3O7_δ: EFFECT OF OXYGEN STOICHIOMETRY 19R. J. Cava, B. Batlogg, A.P- Ramirez, D. Werder,C.H. Chen, E.A. Rietman, and S.M. Zahurak
THEORIES OF HIGH Tc SUPERCONDUCTORS 27John Bardeen
PART II: PLENARY SESSION II
MATERIALS ASPECTS OF OXIDE SUPERCONDUCTORS―EFFECT OFAMBIENT WATER ON SUPERCONDUCTIVITY 33
K. Kitazawa, K. Kishio, T. Hasegawa, A. Ohtomo,S. Yaegashi, S. Kanbe, K. Park, K. Kuwahara,and K. Fueki
OXYGEN VACANCY ORDERING IN BaYCu3O7_x, 0<x<1, BYELECTRON DIFFRACTION STUDIES 41
M.A. Alario-Franco, J.J- Capponi, C. Chain out,J. Chenavas, and M. Marezio
THE PREPARATION OF BULK AND THICK FILMS OF YBa2Cu3O7-yUSING A SOLUTION TECHNIQUE 49
P. Barboux, J.M. Tarascon, B.G. Bagley, L.H. Greene,G.W. Hull, B.W. Meagher, and C.B. Eom
FERMI SURFACE IN La2CuO4-,δ DETERMINE BY POSITRON 2D-ACAR 57Shoichiro Tanigawa, Yoji Mizuhara, Yoshikazu Hidaka,Migaku Oda, Minoru Suzuki, and Toshiaki Murakami
HIGH-TC SUPERCONDUCTING FILMS OF Y-Ba-Cu OXIDE PREPAREDBY A LOW PRESSURE PLASMA SPRAYING 63
K. Tachikawa, I. Watanabe, and S. Kosuge
PART III: INVITED SESSION I
MAGNETISM, SPECIFIC HEAT, AND SURFACE TOPOGRAPHY OFOXIDE SUPERCONDUCTORS 71
H. Jenny, H. Bretscher, T. Frey, D. Anselmetti,H. Heinzelmann, R. Wiesendanger, G. Leemann,B. Walz, D. Sackinger, and H.-J. Guntherodt
THE EFFECTS OF OXYGEN STOICHIOMETRY AND OXYGEN ORDERINGON SUPERCONDUCTIVITY IN Y1Ba2Cu3O9-x 77
R. Beyers, E.M. Engler, P.M. Grant, S.S.P. Parkin,G. Lim, M.L. Ramirez, K.P. Roche, J.E. Vazquez,V.Y. Lee, R.D. Jacowitz, B.T. Ahn, T.M. Giir, andR.A. Huggins
HIGH-RESOLUTION X-RAY MICROSTRUCTURAL STUDY OF SINGLECRYSTALS OF YBa2Cu3O7-y 83
Hoydoo You, J.D, Axe, X.B. Kan, S.C. Moss, J.Z. Liu,and D.J. Lam
EFFECT OF OXYGEN PRESSURE ON THE PHASE TRANSFORMATION INTHE Y-Ba-Cu-0 AND RELATED SUPERCONDUCTING OXIDES 89
Y. Kubo, Y. Nakabayashi, J. Tabuchi, T. Yoshitake,T. Manako, A- Ochi, K. Utsumi, H. Igarashi, andM. Yonezawa
THEORETICAL STUDIES OF COPPER OXIDE CLUSTERS:PREDICTION OF AN ELECTRONICALLY DRIVEN PHASE SEPARATIONIN YBa2Cu3Ox 95
L.A. Curtiss, T.O. Brun, and D.M. Gruen
HIGH TEMPERATURE SUPERCONDUCTORS IN THE Lai+xBa2-xCu3OySYSTEM 101
E.M. McCarron III, C.C. Torardi, J.P. Attfield,K.J. Morrissey, A.W. Sleight, D.E. Cox, R.K. Bordia,W.E. Farneth, R.B. Flippen, M.A. Subramanian,E. Lopdrup, and S.J. Poon
OXYGEN ORDER, STOICHIOMETRY AND MAGNETIC BEHAVIOR OFYBa2(Cui_xFex)307+6 107
C.W. Kimball, J.L. Matykiewicz, John Giapintzakis,Hsun Lee, B.D. Dunlap, M. Slaski, F.Y. Fradin,C. Segre, and J.D. Jorgensen
IN-SITU PRODUCTION OF SUPERCONDUCTING YBa2Cu3O7_y THIN
FILMS BY HIGH PRESSURE REACTIVE EVAPORATION WITH RAPIDTHERMAL ANNEALING 113
D.K. Lathrop, S.E. Russek, and R.A. Buhrman
HIGH CRITICAL-CURRENT DENSITY Ba2YCu3O7 THIN FILMSPRODUCED BY COEVAPORATION OF Y, Cu, AND BaF2 119
P.M. Mankiewich, R.E. Howard, W.J. Skocpol,A.H. Dayem, A. Ourmazd, M.G. Young, and E. Good
RADIATION DAMAGE IN THIN FILMS OF HIGH TcSUPERCONDUCTORS 127
G.J. Clark, F.K. Legoues, A.D. Marwick,R.B. Laibowitz, and R.H. Koch
PART IV: INVITED SESSION II
OPTICAL PROPERTIES OF DOPANT INDUCED STATES INLa2-xSrxCu04-6 COMPOUNDS 135
S. Etemad, D.E. Aspnes, P. Barboux, G.W. Hull,M.K. Kelly, J.M. Tarascon, R. Thompson,S.L. Herr, K. Kamaras, CD. Porter, andD.B. Tanner
THEn-p TRANSITION IN YBa2Cu3Og.5+x 141G.M. Choi, H.L. Tuller, and*M.-J. Tsai
SINGLE-CRYSTAL STRUCTURAL STUDY OF La2CUQ,9 5Li0.054 147J.M. Delgado, J.S. Speck, R.K. McMullan,G. Diaz de Delgado, and B.J. Wuensch
OBSERVATION OF HEXAGONALLY ORDERED FLUX QUANTA INYBa2Cu307 153
P.L- Gammel, D.J. Bi shop, G.J. Dolan, J.R. Kwo,C.A. Murray, L.F. Schneemeyer, and J.V. Waszczak
PREPARATION OF HIGH Tc YBa2CU3O7_x POWDERS FROM NITRATEAND OXALATE PRECURSORS 159
M.H. Kayser, B. Borglum, G. Antony, S.G. Shyu,and R.C. Buchanan
HIGH~TC SUPERCONDUCTING OXIDE FILMS PRODUCED FROMSOLUTION PRECURSORS 165
Emanuel I. Cooper, Margaret A. Frisch,Edward A. Giess, Arunava Gupta, Brian W. Hussey,
Eugene J.M. 01Sullivan, Stanley I. Raider, andGerald J. Scilla
PHASE EQUILIBRIA STUDIES NEAR THE SUPERCONDUCTING
YBa2CU3Ox COMPOSITION BY A SOLID-STATE IONIC TECHNIQUE 171Byung Tae Ahn, Turgut M. Giir, Robert A, Huggins,Robert Beyers, and Edward M. Engler
X-RAY ABSORPTION STUDIES OF La2-xSrxCuO4 A^0Y1_xPrxBa2Cu307_δ 177
E.E. Alp, G.K. Shenoy, L. Soderholm, G.L. Goodman,D.G. Hinks, B.W. Veal, P.A. Montano, and D.E. Ellis
ANISOTROPIC NORMAL STATE TRANSPORT PROPERTIES OF OXIDE
SUPERCONDUCTORS PREDICTED FROM LAPW BAND STRUCTURES 183Philip B. Allen, Warren E. Pickett, andHenry Krakauer
PART V: INVITED SESSION III
DEVELOPMENTS OF TAPE AND WIRE FABRICATION PROCESSES FOR
HIGH TcBa2YCU3O7_y OXIDE SUPERCONDUCTORS 191K. Togano, H. Kumakura, and H. Shimizu
THE DEPOSITION, FABRICATION AND CHARACTERISTICS OFHIGH CRITICAL TEMPERATURE DEVICES 197
G.W. Morris, M.G. Blamire, R.E. Somekh,E.J. Tomlinson, and J.E. Evetts
ALIGNED SINTERED COMPACTS OF RBa2Cu3O7_x (R=Dy, Er,Eu, Gd, Ho, Y) 203
R.H. Arendt, A.R. Gaddipati, M.F. Garbauskas,E.L. Hall, H.R. Hart, Jr., K.W. Lay, J.D.Livingston, F.E. Luborsky, and L.L. Schilling
DEFECT STRUCTURES IN YBa2Cu3O7_x PRODUCED BY ELECTRONIRRADIATION 209
M.A. Kirk, M.C. Baker, J.Z. Liu, D. J. Lam, andH.W. Weber
TRANSMISSION ELECTRON MICROSCOPE STUDIES ON MINORPHASES AND IMPERFECTIONS IN YBa2Cu3Ox COMPOUNDS 215
Shozo Ikeda, Kazuhiro Kimura, Akiyuki Matsushita,Haruyoshi Aoki, Takeshi Hatano, Takehiko Matsumoto,and Keiichi Ogawa
FIELD DEPENDENCE OF MEISSNER EFFECT IN A SINGLE CRYSTALOF YBa2CU3Ox IN THE ULTRA-LOW MAGNETIC FIELD REGIME 221
L. Krusin-Elbaum, A.P. Malozemoff, and Y. Yeshurun
FAR-INFRARED PROPERTIES OF ab PLANE ORIENTEDYBa2Cu3O7_ 6 227
D.A. Bonn, A.H. O'Reilly, J.E. Greedan, C.V. Stager,T. Timusk, K- Kamaras, and D.B. Tanner
ON THE TWIN FORMATION IN ORTHORHOMBIC Y1Ba2CU3O7_y 233D. Rios-Jara, C. Varea, A. Robledo, A. Huanosta,J.M. Dominguez, J. Omaha, T. Akachi, and R. Escudero
PART VI; PREPARATION OF BULK MATERIALS I
Ba2YCu306B9 POWDER PREPARATION BY SOL-GEL EMULSIONTECHNIQUES 241
M.J. Cima, R- Chiu, and W.E. Rhine
SINTERING AND MICROSTRUCTURE - PROPERTY RELATIONS FORYBa2Cu3Ox 245
R.K. Bordia, H.S. Horowitz, M.A. Subramanian,J.B. Michel, E.M. McCarron, III, C.C. Torardi,J.D. Bolt, U. Chowdhry, E. Lopdrup, and S.J. Poon
SYNTHESIS AND CHARACTERIZATION OF Ba2Cu3PrO7_x 249J. Amador, C. Cascales, and I. Rasines
APPLICATION OF GEL TECHNOLOGY IN PREPARATION OF HIGH-TCPEROVSKITE SUPERCONDUCTORS 253
R.S. Liu, G.C. Lin, H.M. Sung, Y.C. Chen, andO.C.C. Lin
YBa2Cu3O7_6 SUPERCONDUCTORS PRODUCED BY HOT-PRESSING OFFREEZE-DRIED, CARBONATE- AND OXALATE-COPRECIPITATEDPOWDERS 257
C.T. Wang, L.S. Lin, J.H. Lin, J.Y. Su, S.J, Yang,and S.E. Hsu
THE FORMATION OF Y-Ba-Cu-0 PHASES DURING SOLID STATEREACTION 261
T.S- Chin, T.W. Huang, W.T. Lin, N.C. Wu,Y.H. Chou, T.C. Wu, P.T. Wu, and H.H. Yen
EFFECT OF THERMAL PROCESSING ON THE MICROSTRUCTURES ANDSUPERCONDUCTING PROPERTIES OF YBa2Cu3Oy 265
K. Gotoh, H. Enomoto, K. Iida, Y. Takano, N. Mori,and H. Ozaki
PROCESSING-PROPERTY RELATIONS IN YBa2CU3O6+x SUPER-CONDUCTORS 269
A. Safari, J.B. Wachtman, Jr., V. Parkhe,R. Caracciolo, D. Jeter, A.S. Rao, H.G.K. Sundar,N. Jisrawi, and W.L. McLean
LASER INDUCED DEPOSITION OF YBa2Cu3O7_x THIN FILMS 273H.S. Kwok, P. Mattocks, D.T. Shaw, L. Shi,X.W. Wang, S. Witanachchi, Q.Y. Ying, J.P. Zheng,and P. Bush
TOP SEEDED SOLUTION GROWTH OF LANTHANUM COPPER OXIDE 279P.J, Picone, H.P. Jenssen, D.R, Gabbe, andH.L. Tuller
EFFECT OF OXYGEN ANNEALING ON LOW-RESISTIVITY CONTACTSFOR HIGH-TC SUPERCONDUCTORS 283
J.W. Ekin, A.J. Panson, and B.A. Blankenship
PART VII: FILMS, WIRES, ETC. I
HIGH Tc SUPERCONDUCTING FILMS FROM METALLO-ORGANICPRECURSORS 289
W.W. Davison, S.G. Shyu, and R.C. Buchanan
FABRICATION AND SUPERCONDUCTING PROPERTIES OF HIGH TcOXIDE WIRE 293
N. Sadakata, Y, Ikeno, M. Nakagawa, K. Gotoh,and O. Kohno
A METAL-ALLOY PROCESS FOR THE FORMATION OF OXIDESUPERCONDUCTING FILMS: ADVANTAGES, PROBLEMSSUBSTRATE INTERACTIONS, BUFFER LAYERS 297
M. Gurvitch and A.T. Fiory
INTERFACE EFFECTS OF LASER ABLATED AND SPUTTERED HIGHTc SUPERCONDUCTING THIN FILMS 303
B. Dam, T.S. Bailer, G.N.A. van Veen,H.A.M. van Hal, J.W.C. De Vries, andG.M. Stollman
SPIN-ON THIN FILMS OF YBa2CU3O7_y AND La2-xSrxCuO4-yFROM CITRATE-POLYMER PRECURSORS 307
Yet-Ming Chiang, Sharon L. Furcone, Jeri Ann S.Ikeda, and David A. Rudman
FABRICATION OF HIGH Tc SUPERCONDUCTING FILMS WITHDIFFUSION BARRIERS 311
C.L. Chien, Gang Xiao, M.Z. Cieplak, A. Bakhshai,A. Gavrin, F.H. Streitz, and J. Childress
FORMATION OF THIN FILM YBaCuO SUPERCONDUCTORS FROMCu/BaO/Y2O3 LAYER STRUCTURES 315
Chin-An Chang, C.C. Tsuei, C.C Chi,M.R. Scheuermann, D.S. Yee, and J.P. Berosh
PREPARATION OF Y-Ba-Cu-0 SUPERCONDUCTING FILMS BYMODIFIED DC SPUTTERING PROCESS 319
R.J. Lin, Y.C. Chen, J.H. Kung, and P.T. Wu
PREPARATION OF THIN FILM YBa2CU3Og+x CERAMIC SUPER-CONDUCTORS BY THE SOL-GEL PROCESS 323
S. Kramer, K. Wu, and G. Kordas
FORMATION AND PROCESSING OF HIGH Tc SUPERCONDUCTORFILMS WITH PULSED EXCIMER LASER 327
Tomoji Kawai, Masaki Kanai, and Maki Kawai
PROPERTIES OF Y-Ba-Cu-0 FILM FORMED BY THE SPRAYPYROLYSIS METHOD 331
Maki Kawai, Tomoj i Kawai, Hiromi Masuhira, andMakoto Takahasi
THIN FILMS OF Y-Ba-Cu-0 BY RF SPUTTERING 335Paul H. Ballentine, A.M. Kadin, J. Argana, andR.C. Rath
EPITAXIAL FILMS OF HIGH Tc OXIDE SUPERCONDUCTORSY;LBa2Cu3O7 GROWN ON SrTiO3 BY MOLECULAR BEAM EPITAXY 339
J. Kwo, T.C. Hsieh, M. Hong, R.M. Fleming,S.H. Liou, and B.A. Davidson
HIGH-TEMPERATURE SUPERCONDUCTING Y-Ba-Cu-0 THIN FILMBY USING IONIZED CLUSTER BEAM METHOD 343
K. Yamanishi, S. Yasunaga, K. Imada, K. Sato,and Y. Hashimoto
PART VIII: PHYSICAL PROPERTIES AND THEORY I
PHOTOEMISSION STUDY OF THE ELECTRONIC STRUCTURE OF COPPEROXIDE SUPERCONDUCTORS 349
Z.-X. Shen, J.W. Allen, J.J. Yeh, J.-S. Kang,W. Ellis, W.E. Spicer, I. Lindau, J.Z. Sun,T.H. Geballe, M.B. Maple, Y.D. Dalichaouch, andM.S. Torikachvili
ELECTRONIC STRUCTURE AND ANTIFERROMAGNETISM IN La2CuO4 353P.A. Sterne, C.S. Wang, G.M. Stocks, andW.M. Temmerman
NOISE POWER SPECTRUM OF COPPER OXIDE SUPERCONDUCTORS INTHE NORMAL STATE 357
Joseph A. Testa, Yi Song, Xiao-Dong Chen,John P. Golben, Robert D. McMichael, Sung-Ik Lee,Bruce R. Patton, and James R. Gaines
MAGNETIC INVESTIGATIONS OF SUPERCONDUCTIVE, POLYCRYSTAL-LINE (RE)1Ba2Cu3O7_x COMPOUNDS (RE = Y, Gd, Ho, Dy) 361
J.R. Thompson, L.A. Boatner, J. Brynestad,D.K. Christen, Y.C. Kim, B.C. Sales, andS.T. Sekula
EFFECT OF TEMPERATURE CYCLES ON THE CRITICAL CURRENTDENSITY OF YBa2Cu3O7_δ 365
T.H. Tiefel, S. Jin, R.C. Sherwood, R.A. Fastnacht,S. Nakahara, G. Fisanick, and T. Boone
MAGNETIZATION OF A SUPERCONDUCTING GLASS 371M. Tuominen, A.M. Goldman, and M. L. Mecartney
REENTRANT SOFTENING IN COPPER-OXIDE SUPERCONDUCTORS 375C.E. Violet, T. Datta, H.M. Ledbetter, C. Almasan,and J. Estrada
63,65Cu NMR amd NQR IN YBa2Cu3O7_δ 379W.W. Warren, Jr., R.E. Walstedt, R.F. Bell,G.F. Brennert, R.J. Cava, G.P. Espinosa,J.P. Remeika, and E.A. Rietman
CHANGES IN MICROWAVE ABSORBTION OF NEW HIGH Tc SUPER-CONDUCTORS WITH SMALL MAGNETIC FIELDS 3 83
K. Khachaturyan, E.R. Weber, P. Tejedor, A. Stacy,and A. Portis
PENETRATION DEPTH MEASUREMENTS OF YBa2Cu3O7_δat 4 MHz 387H. Wiesmann, R. R. Corderman, A.R. Moodenbaugh,M.W. Ruckman, and Myron Strongin
RADIATION DAMAGE IN YBa2Cu3O7 BY FAST NEUTRONS 391J.O. Willis, J.R. Cost, R.D. Brown, J.D.Thompson, and D.E. Peterson
SYNTHESIS STUDY OF SUPERCONDUCTING YBa2CU3O7_x POWDERSFROM METAL-ALKOXIDES 395
K. Wu, S. Kramer, and G. Kordas
SUPERCONDUCTING PROPERTIES OF ORTHORHOMBICYBa2(Cu1_xZnx)3O7 AND TETRAGONAL YBa2(Cui_xGax)3O7 399
Gang Xiao, M.Z. Cieplak, A. Gavrin, F.H. Streitz,A. Bakhshai, and C.L. Chien
ELECTRONIC STRUCTURE OF FLUORINE-SUBSTITUTED YBa2Cu3O7SUPERCONDUCTOR 403
W.Y. Ching, Yongnian Xu, and K.W. Wong
CRITICAL CURRENT DENSITY ENHANCEMENT AND MOISTUREDESTRUCTION STUDIES OF THE COMPOUND SUPERCONDUCTORY-Ba-Cu-Ag-0 407
Y.D. Yao, A. Krol, Y.H. Kao, C. Walters,S. Spagna, J. Althoff, S. Woronick, L.Y. Jang,and F. Xu
SPINODAL DECOMPOSITION AND HIGH-TC SUPERCONDUCTIVITY 411Robert S, Markiewicz
RAMAN SCATTERING STUDIES ON SUPERCONDUCTING YBa2Cu3O7_x,SEMICONDUCTING YBa2CU3Oδ+x, AND POSSIBLE IMPURITYPHASES 415
A. Mascarenhas, H. Katayama-Yoshida, S. Geller,J.I. Pankove, and S.K. Deb
CRITICAL CURRENT ANISOTROPY IN SINTERED SUPERCONDUCTINGYBa2Cu3O7 419
B.A. Glowacki and J.E. Evetts
MEASUREMENT OF THE MAGNETIC FORM FACTOR OF Cu INANTIFERROMAGNETIC La2CuO4 423
S. Mitsuda, T. Freltoft, G. Shirane, J.P. Remeika,and A.S. Cooper
SUPERCONDUCTIVITY OF La(2-x)BaxCuO4 427A.R. Moodenbaugh, Y. Xu,and M. Suenaga
FLUX TRAPPED STATE VERSUS GLASSY STATE IN SUPERCON-DUCTING BaErCuO AND BaYCuTiO 431
Sang Boo Nam
FAR INFRARED MEASUREMENTS ON SINGLE CRYSTALS, FILMSAND BULK SINTERED HIGH TEMPERATURE SUPERCONDUCTORS 435
T.W. Noh, P.E. Sulewski, S.G. Kaplan, A.J. Sievers,D.K. Lathrop, and R.A. Buhrman
EFFECT OF OXYGEN ANNEALING ON THE MAGNON-PAIR RAMANSCATTERING IN La2Cu04_y 439
I. Ohana, Y.C. Liu, M.S. Dresselhaus,G. Dresselhaus, A.J. Strauss, H. J, Zeiger,P.J. Picone, H.P. Jenssen, and D.R. Gabbe
ANISOTROPIC BEHAVIOR OF A HIGH Tc SUPERCONDUCTOR 443F.A. Otter, J.I. Budnick, B.R. Weinberger,L. Lynds, D.-P. Yang, S.F. Galasso,M. Filipkowski, W.A. Hines, and D.M, Potrepka
TIGHT-BINDING STUDY OF THE ELECTRONIC STRUCTURE OF THEHIGH TEMPERATURE SUPERCONDUCTOR La2Cu04 447
D,A. Papaconstantopoulos, M.J. Deweert, andW.E. Pickett
DERIVATIVE ANALYSIS OF THE HIGH TEMPERATURE SUPER-CONDUCTING TRANSITION 451
Carmen Almasan, J. Estrada, C.P. Poole, Jr.,T. Datta, H.A. Farach, D.U. Gubser, S.A. Wolf,and L.E. Toth
LOW-FIELD MICROWAVE ABSORPTION IN HIGH-TC SUPERCON-DUCTING OXIDES 455
B.L. Ramakrishna, E.W. Ong, and Z. Iqbal
SPECIFIC HEAT LINEAR TERM IN YBa2Cu3O7_x AND ASURVEY OF RELATED COMPOUNDS 459
A.P. Ramirez, R.J. Cava, G.P. Espinosa,J.P. Remeika, B. Batlogg, S. Zahurak, andE.A. Rietman
THEORETICAL STUDIES OF OXYGEN VACANCIES INYBa2Cu3O7-y 463
Brent A. Richert and Roland E. Allen
COPPER VALENCE VIA SMALL POLARON ANALYSIS IN SINTER-FORGED YBa2Cu3O7_y AT 700OC 467
Deepak Ahuja, S.E. Dorris, M.-Y. Su,Q. Robinson, D.L. Johnson, and T.O. Mason
ELECTRON SCATTERING IN SUPERCONDUCTING OXIDES 471J. Ruvalds and Y. Ishii
CALORIMETRIC STUDIES OF HIGH TEMPERATURE OXIDESUPERCONDUCTORS 47 5
Yasutoshi Saito, Tetsuro Nakamura, andTooru Atake
BULK SUPERCONDUCTIVITY IN La2CuO4479
J.E. Schirber, E.L. Venturini, B, Morosin,J.F. Kwak, D.S. Ginley, and R.J. Baughman
CARRIER CONCENTRATION AND HIGH Tc SUPERCONDUCTIVITY 483N. Karpe, I. Szymczak, D.-X. Chen, A. Sanchez,J. Nogues, and K.V. Rao
SHORT RANGE ORDER STRUCTURE AROUND OXYGEN ATOMS IN THESUPERCONDUCTOR Y-Ba-Cu-0 487
S,C. Woronick, W. Ng, A. Krol, B.X, Yang, Y.H. Kao,R.L. Meng, P.H. Hor, and C.W. Chu
ELECTRON IRRADIATION OF YBa2CU3O7 AT LOW TEMPERATURES 491B. Stritzker, W. Zander, F. Dworschak, U. Poppe,and K. Fischer
PRESSURE DEPENDENCE OF THE TETRAGONAL-ORTHORHOMBIC
TRANSITION IN Lax.88SrQ.12CUO4-5: A SINGLE CRYSTALX-RAY STUDY " 497
R. Moret and G. Collin
PART IX: SUBSTITUTION, STRUCTURE, ETC- I
SUPERCONDUCTING PROPERTIES OF YBa2CU3O7_6DOPED WITHVARIOUS METALS AND OXIDES 503
R.C. Sherwood, S. Jin, T.H. Tiefel, R.B. Van Dover,R.A. Fastnacht, M.F. Yan, and W.W. Rhodes
ION CHANNELING STUDIES OF CRYSTALLINITY, AMORPHIZATION,AND THERMAL ANNEALING IN SINGLE-CRYSTAL YBa2Cu30x 507
N.G. Stoffel, W.A. Bonner, P.A. Morris, andB.J. Wilkens
GRAIN BOUNDARIES, PLANAR DEFECTS AND SUPERCONDUCTINGPROPERTIES OF YBa2Cu3O7 511
J. Tafto, M. Suenaga, T. Wang, R.L. Sabatini,A.R. Moodenbaugh, and S. Levine
OXYGEN STOICHIOMETRY IN La-Ba-Cu-0 PEROVSKITES 515S.A. Sunshine, L.F. Schneemeyer, D.W. Murphy,and J.V. Wasczcak
ON THE EXISTENCE OF (02)2- IN YBa2Cu3-yMyO7+x, M=CoAND Fe 519
Y.K. Tao, J.S. Swinnea, A. Manthiram, J.S. Kim,J.B. Goodenough, and H. Steinfink
3d-METAL DOPING (Fe,Co,Ni,Zn) OF THE HIGH Tc PEROVSKITEYBa2Cu3O7_y 523
J.M, Tarascon, P. Barboux, L.H. Greene, G.W. Hull,and B.G, Bagley
OXYGEN ABSORPTION AND STRUCTURAL TRANSITION IN A MODELYBa2Cu3O7_y 527
C. Varea and A. Robledo
ION-BEAM-INDUCED DESTRUCTION OF SUPERCONDUCTING PHASECOHERENCE IN YBa2Cu3O7_δ 531
Alice E. White, K.T. Short, D.C. Jacobson,J.M. Poate, R.C. Dynes, P.M. Mankiewich,W.J. Skocpol, R.E. Howard, M. Anzlowar,K.W. Baldwin, A.F.J. Levi, J.R. Kwo, T. Hsieh,and M- Hong
VACANCY ORDERING IN THE BASAL PLANE OF YBa2Cu302 535L.T. Wille, A. Berera, D. De Fontaine, andS.C. Moss
IONIC MODELS FOR YBa2Cu3O7 539N.F. Wright, G.S. Painter, W.R. Busing, andW.H. Butler
SUPERCONDUCTIVITY IN PSEUDO-QUATERNARY SYSTEM 543P.C. Yao. C.I. Chiang, C.W. Hsieh, J.W. Chen,I.N. Lin. S.J. Yang, and S.E. Hsu
SUPERCONDUCTIVITY IN THE FLUORINATED YBaCuO 549R.T. Young, S.R. Ovshinsky, B.S. Chao,G. Fournier, and D.A. Pawlik
SIMULATION AND PROCESSING OF HIGH RESOLUTION IMAGESOF DEFECTS AND INTERFACES IN SUPERCONDUCTINGYBa2Cu3O7 553
H.W. Zandbergen, R. Gronsky, K. Wang, andG. Thomas
SITE EXCHANGE IN HIGH TEMPERATURE SUPERCONDUCTORS 557D.J. Li, H. Shibahara, J.P. Zhang, and L.D. Marks
DETERMINATION OF THE OXYGEN CONTENT IN SAMPLES OFYBa2Cu3O7_x WITH VARIABLE OXYGEN CONTENT 561
F.C. Matacotta, G. Nobile, Gianna Serrini,M.D. Giardina, and A.E. Merlini
RAPID SOLIDIFICATION OF YBa2Cu3O7_x, EuBa2Cu3O7_x, ANDGdBa2Cu3O7_x 567
J. McKittrick, M.E. McHenry, P. Standley,C. Heremans, T.R.S. Prasanna, G. Kalonji, andR.C. O'Handley
THERMOCHEMISTRY AND HIGH TEMPERATURE THERMODYNAMIC
PROPERTIES OF RARE EARTH-ALKALINE EARTH-COPPER OXIDESUPERCONDUCTORS 571
Lester R. Morss, David C. Sonnenberger, andR.J. Thorn
ON THE DEFECT STRUCTURE OF GRAIN BOUNDARIES INBa2YCu307-x 575
S. Nakahara, G.J. Fisanick, M.F. Yan,R.B. van Dover, T. Boone, and R. Moore
ORDERING OF OXYGEN ATOMS IN YBa2CU3O6+x AND ITS EFFECTSON SUPERCONDUCTING PROPERTIES 579
Keikichi Nakamura, Takeshi Hatano, Shozo Ikeda,and Keiichi Ogawa
EPR SPECTROSCOPY ON Zn-SUBSTITUTED YBa2Cu3O7 583A.M. Ponte Goncalves, Chan-Soo Jee, D. Nichols,J.E. Crow, G.H. Myer, R.E. Salomon, andP. Schlottmann
EFFECT OF OXIDIZING ATMOSPHERE ON SUPERCONDUCTIVITY INRBa2Cu3_xMxOz 587
David A. Robinson, M. Abbot Maginnis,A. Morrobel-Sosa, Chester Alexander, Jr.C. Asavaroengchai, Robert M. Metzger, andDonald A. Stanley
OXYGEN STOICHIOMETRY AND SUPERCONDUCTIVITY INHo!Ba2Cu307_x 591
B.C. Sales, Y.C. Kim, J.R. Thompson, D.K. Christen,L.A. Boatner, and S.T. Sekula
GROWTH OF SEPARATED YBa2CU3O7_x CRYSTALS 595Hans J, Scheel and F. Licci
ELECTRON DIFFRACTION AND TEM STUDIES OF Y1Ba2CU3O7_x 601R. Perez, J.G. Perez-Ranfirez, M. Avalos, J. Reyes,L. Martinez, E. Orozco, E. Carrillo, A. Mendoza,J. Al bar ran, J. Fu en tes Maya, J.L. BoldU", andM. Jose-Yacama'n
X-RAY ABSORPTION AND RESISTIVITY STUDIES OF THE QUINARY-COMPOUND SUPERCONDUCTOR Y-Ba-Cu-O-S 605
S. Spagna, J. Althoff, Y.D. Yao, F. Xu, L.Y. Jang,A. Krol, and Y.H. Kao
LOCAL ENVIRONMENT AROUND BARIUM ATOMS IN THE SUPER-CONDUCTOR Y-Ba-Cu-0 609
A. Krol, F. Xu, L.Y. Jang, C.J. Sher, S. Spagna,J. Althoff, and Y.H. Kao
PART X: PREPARATION OF BULK MATERIALS II
ADVANTAGES OF BARIUM PEROXIDE IN THE POWDER SYNTHESIS OFPEROVSKITE SUPERCONDUCTORS 615
A.F. Hepp, J.R. Gaier, W.H. Philipp, J.D. Warner,R.G. Garlick, J.J. Pouch, and P.D. Hambourger
SYNTHESIS OF SUPERCONDUCTING OXIDES ANDOXIDE/METAL
COMPOSITES BY OXIDATION OF METALLIC PRECURSORS 619Gregory J. Yurek, John B. Vander Sande, andDavid A. Rudman
POSSIBILITY OF HIGH-TC COPPER FLUORIDE OXIDE SUPER-CONDUCTORS 623
P.T. Wu, R.S. Liu, H.M. Sung, and J.H. Kung
PROCESSING RELATIONSHIPS IN YBa2Cu3O7_x SUPERCONDUCTORS 627W.J. Weber, L.R. Pederson, G.D. Maupin, andE.J. LeBlanc
LASER PROCESSING AND CHARACTERIZATION OF HIGH-TCSUPERCONDUCTORS 631
W.H. Weber, E.M. Logothetis, R.E. Soltis,G.W. Graham, J.T. Chen, and L.E. Wenger
A HYDROXYCARBONATE ROUTE TO SUPERCONDUCTOR PRECURSORPOWDERS 635
J.A. Voigt, B.C. Bunker, D.H. Doughty, D.L, Lamppa,and K.M. Kimball
IMPROVED MAGNETIZATION FOR YBa2CU3O7_6 ANNEALED INOXYGEN ABOVE 1000°C 639
E.L. Venturini, D.S. Ginley, R.J. Baughman,B. Morosin, and J.F. Kwak
EFFECTS AND BEHAVIOR OF IMPLANTED FLUORINE IN HIGHTEMPERATURE SUPERCONDUCTORS 643
J.R. Tesmer, C. J. Maggiore, M. Nastasi,S-W. Cheong, and C-M. Dick
GROWTH OF YBa2Cu3O7_δ SINGLE CRYSTALS AND FILMS BY AFLUX AND A SPUTTERING METHODS 647
K. Takagi, M, Hirao, M. Hiratani, H. Kakibayashi,T. Aida, and S. Takayama
COPPER MIXED-VALENCY IN A NEW ALUMINUM-BARIUM-COPPEROXIDE 651
Paul D. VerNooy, Michael A. Dixon, andAngelica M. Stacy
ANNEALING EFFECTS ON PROPERTIES OF HIGH Tc YBa2Cu3O7_xCERAMICS 655
Shin-Guang Shyu, R.F. Louh, and R.C. Buchanan
SUPERCONDUCTIVITY IN Y-Ba-Cu-Ag-0 AND Y-Ba-Cu-Pt-0SYSTEMS 659
V.T. Kovachev, M.M. Gospodinov, E.S. Vlachov,V.A. Lovchinov, P.K. Svestarov, K. A. Nenkov,A.K. Stoianova, D.A. Dimitrov, B.M. Terziiska,S. Tinchev, M. Taslakov, T. Mydlarz, and M. Czyczek
SINTERING TIME AND TEMPERATURE FOR Ba2YCu3O7_x SUPER-CONDUCTORS 663
Jenifer A.T. Taylor, Prinya Sainamthip, andDavid F. Dockery
PART XI: FILMS, WIRES, ETC. II
BULK CERAMIC AND SCREEN PRINTED EuBa2Cu3O7_δ 669W.S. Fu, D.S. Ginley, M.A. Mitchell, E.L.Venturini, B. Morosin, J.F. Kwak, andR.J. Baughman
FREESTANDING FILMS OF YBa2Cu3O6.9 673D.S. Ginley, M.A. Mitchell, *W. Fu, J.F. Kwak,E.L. Venturini, and R.J. Baughman
PREPARATION OF SUPERCONDUCTING THIN FILMS OF HIGH Tc
CUPRATES BY A NOVEL SPIN-ON/PYROLYSIS TECHNIQUE 677C.E. Rice, R.B. van Dover, and G.J. Fisanick
ION BEAM SPUTTERING AND PROPERTIES OF SUPERCONDUCTINGYBaCuO THIN FILMS 681
D. Pavuna, W. Baer, H. Berger, V. Gasparov,M. Schmidt, F. Vasey, and F-K. Reinhart
EFFECT OF UNIAXIAL STRAIN ON THE SUPERCONDUCTINGTRANSITION TEMPERATURE IN THIN YBa2CU3O7 FILM 685
S.I. Park, M.R. Scheuermann, C.C. Chi, andC.C. Tsuei
ELECTRICAL, CHEMICAL, AND STRUCTURAL PROPERTIES OFPLASMA SPRAYED Y-Ba-Cu-OXIDE SUPERCONDUCTING COATINGS 689
R.A. Neiser, J. P. Kirkland, W.T. Elam, H. Herman,S. Rangaswamy, V.M. Letourneau, and M. Osofsky
SUPERCONDUCTING TAPE-SHAPED WIRE BY Y1Ba2Cu307_6 WITHJc * 2000 A/cm2 695
S. Matsuda, M. Okada, T. Morimoto, T. Matsumoto,and K. Aihara
DEPOSITION OF HIGH Tc SUPERCONDUCTOR THIN FILMS BYPULSED LASER ABLATION 699
D.N. Mashburn, D.B. Geohegan, D. Eres,D.H. Lowndes, L.A. Boatner, B.C. Sales,S.J. Pennycook, R.J. Culbertson, E. Sonder,and D.K. Christen
MICROSTRUCTURAL CHARACTERIZATION OF Ba2YCu3O7 FILMSPRODUCED BY CO-EVAPORATION 7 03
G.J. Fisanick, P. Mankiewich, W. Skocpol,R.E. Howard, A. Dayem, R.M. Fleming, A.E. White,S.H. Liou, and R. Moore
SUPERCONDUCTING THIN FILMS OF (RE)Ba2CU3(Ag)O7_xPREPARED BY PULSED LASER ABLATION 707
L. Lynds, B.R. Weinberger, G.G. Peterson, andH.A. Krasinski
HIGH Tc SUPERCONDUCTING Y-Ba-Cu-0 THICK FILM BY SCREENPRINTING 711
H.H. Yen, J.H. Kung, Y.C. Chen, and P.T. Wu
GRAIN BOUNDARIES IN YBa2Cu3O7_x 715L.A. Tietz, C.B. Carter, D.K. Lathrop, S.E. Russek,and R.A. Buhrman
THE MORPHOLOGY OF YBa2Cu3O7_x THIN FILMS GROWN ONCERAMIC SUBSTRATES 719
L.A. Tietz, B.C. De Cooman, C.B. Carter,D.K. Lathrop, S.E. Russek, and R.A. Buhrman
HIGH-TC SUPERCONDUCTING FILMS OF Y-Ba-Cu OXIDE PREPAREDBY A Co2 LASER BEAM EVAPORATION 723
K. Tachikawa, I. Watanabe, S. Kosuge, and M. Ono
PREPARATION OF Y-Ba-Cu OXIDE SUPERCONDUCTING COMPOSITETAPES BY A DIFFUSION PROCESS 727
K.Tachikawa, M.Sugimoto, N.Sadakata, andO.Kohno
A VERSATILE NEW METALLO-ORGANIC SPIN-ON PROCESS FORPREPARING SUPERCONDUCTING THIN FILMS 731
M.E. Gross, M. Hong, S.H. Liou, and P.K. Gallagher
LASER INDUCED DEPOSITION OF YBa2Cu3O7_x THIN FILMS 735H.S. Kwok, P. Mattocks, D.T. Shaw, L. Shi,X.W. Wang, S. Witanachchi, Q.Y. Ying, J.P. Zheng,and P. Bush
PART XII: PHYSICAL PROPERTIES AND THEORY II
EXTERNAL AND INTERNAL DIFFUSION OF OXYGEN IN SUPER-CONDUCTING YBa2Cu3O7 COMPOSITE CONDUCTORS 741
B.A. Glowacki and J.E. Evetts
THERMAL CONDUCTIVITY OF SINGLE-CRYSTAL AND SINTEREDRBa2Cu3O7 AT LOW TEMPERATURES 745
J.E. Graebner, L.F. Schneemeyer, R.J. Cava,J.V. Waszczak, and E.A. Rietman
CRYSTAL STRUCTURES AND SUPERCONDUCTIVITY IN THELa1-5_xBai.5+xCu307+y SYSTEM 749
J.E. Greedan, A.H. O'Reilly, C.V. Stager,F. Razavi, and W. Abriel
ELECTRICAL CONDUCTIVITY AND THERMOGRAVIMETRIC STUDIESOF THE HIGH-TC SUPERCONDUCTOR YBa2CU3Ox 753
Y.H. Han and D.W. Monroe
ORIENTATION DEPENDENT X-RAY ABSORPTION NEAR EDGESTRUCTURE IN YBa2Cu3O7 AND Lai.85Sr0.I5CUO4 757
S.M. Heald, J.M. Tranquada, A.R. Moodenbaugh,and Y. Xu
THERMAL CONDUCTIVITY OF SUBSTITUTED PEROVSKITE SUPER-CONDUCTORS 761
J. Heremans and D.T. Morelli
TUNNELING MEASUREMENTS OF DENSITY OF STATES IN SUPER-CONDUCTING YBa2Cu3Oy 765
K.Iida, K.Gotoh, H.Enomoto, Y.Takano, N.Mori,and H.Ozaki
EVIDENCE FOR d-ELECTRON LOCALIZATION INYBa2(Cui_xZnx)3O7 FOR 0<x<0.16 769
C. Jee, D. Nichols, J. Ciasullo, J.E. Crow,T. Mihalisin, G.N. Myer, M.V. Kuric, S.H. Bloom,and R.P. Guertin
CRITICAL CURRENT DENSITY OF THE YBa2Cu3O7_5 SUPERCON-DUCTOR AS AFFECTED BY MICROSTRUCTURAL CONTROL 773
S. Jin, R.C. Sherwood, T.H. Tiefel, R.B. van Dover,G.W. Kammlott, M.E. Davis, R.A. Fastnacht, S.Nakahara, M.F. Yan, and D.W. Johnson, Jr.
OPTICAL REFLECTANCE STUDIES ON YBa2CU3O7-x AND RELATEDCOMPOUNDS 777
K. Kamara's, M.G. Doss, S.L. Herr, J.S. Kim,CD. Porter, G.R. Stewart, D.B. Tanner. D.A.Bonn. J.E. Greedan, A.H. O.Reilly. CV. Stager,T.Timusk, B. Keszei, S. Pekker, Gy. Hutiray, andL. Mihaly
VIBRATIONAL RAMAN SCATTERING FROM HIGH Tc SINGLECRYSTALS 781
D.M. Krol, M. Stavola, L.F. Schneemeyer,J.V. Waszczak, and W. Weber
MECHANISM OF Jc ENHANCEMENT OF YBa2CU3O7-<5DUE TOAg-DOPING 785
J.H. Kung, H.H. Yen, Y.C. Chen, CM. Wang, andP.T. Wu
EVALUATION OF CRITICAL CURRENT DENSITY IN Ba2YiCu3O7-yCOMPOUND 7 89
Hiroaki Kumakura, Mitsuru Uehara. KazuhikoTakahashi, and Kazumasa Togano
L3 WHITE LINE SPLITTING OF COPPER IN THE ELECTRONENERGY LOSS SPECTRUM OF YBa2Cu3O7_x 793
Channing C Ahn, David S. Lee, and Konrad Samwer
ATOMISTIC LATTICE CALCULATIONS OF THE DEFECT PROPERTIESOF La2CuO4 RELATED TO HIGH Tc SUPERCONDUCTIVITY 797
N.L. Allan and W.C MacKrodt
MAGNETIC TRANSITIONS IN HIGH-TC SUPERCONDUCTORS 801R.A. Barrio, C. Wang, J. Tagiiena-Martinez,D. Rios-Jara, T. Akachi, and R. Escudero
TRANSPORT AND MEISSNER EFFECT STUDIES FORYBa2(Cui-xZnx)3O7 805
S.H. Bloom, M.V. Kuric, Y.S. Yao, R.P. Guertin,D. Nichols, C Jee, A. Kebede, J.R. Crow,T. Mihalisin, G.N. Myer. and P. Schlottmann
EFFECT OF WATER AND IRON ON SLOWLY AND RAPIDLY COOLEDY1Ba2Cu3Og+x SUPERCONDUCTORS: AN EPR/NMR STUDY 809
U.S. Brahme, G. Kordas, and R.J. Kirkpatrick
PHONONS IN YBa2Cu3O7_x TYPE MATERIALS 813Gerald Burns, F.H. Dacol, P. Freitas, W. Konig,and T.S. Plaskett
RAMAN AND INFRARED STUDIES OF Sr2Ti04 - AN ISOMORPHOF (La,Sr)2Cu04 817
Gerald Burns, F.H. Dacol, G. Kliche. W. Konig,and M.W. Shafer
GRAIN BOUNDARY SEGREGATION AND THERMAL HISTORY EFFECTS
ON PROPERTIES OF La1.85Sr0.15CuO4-y SUPERCONDUCTORS 821Yet-Ming Chiang,.Alexana Roshko, Brian D. Fabes,Dominic K. Leung, Jeri Ann S. Ikeda. David A.Rudman, Michael J. Parker, and John R. Martin
LATTICE DYNAMICS AND IONICITY IN THE HIGH-TEMPERATURESUPERCONDUCTORS 825
R.E. Cohen, W.E. Pickett, L.L. Boyer, andHenry Krakauer
MAGNETIC MEASUREMENTS ON YBa(2)Cu(3)O(x) CERAMIC HIGHTEMPERATURE SUPERCONDUCTORS 829
J, Cornells, A. Van Den Bosch, J. Vansummeren,H. Ooms, R. Gilissen, J. Cooymans, N. Maene,and F. Biermans
FAR INFRARED SPECTROSCOPY OF RBa2CU3Ox WITH VARIATIONSIN R AND x 833
M.K. Crawford, W.E. Farneth, R. Bordia, andE.M. McCarron III
ULTRA-LOW-FIELD SQUID MAGNETIC MEASUREMENTS ON HIGHTEMPERATURE CERAMIC YBaCuO SUPERCONDUCTORS 837
D.C. Cronemeyer, A.P. Malozemoff, andT.R. McGuire
NORMAL-STATE INFRARED ANISOTROPY OF POLYCRYSTALLINELa1-85Sro.i5Cu04-y 841
G.L. Doll, J. Steinbeck, M.S. Dresselhaus,G. Dresselhaus, A.J. Strauss, H.J. Zeiger,G. Phillips, and J. Waldman
FREQUENCY DEPENDENCE OF THE ABSORPTION COMPONENT OFTHE MAGNETIC SUSCEPTIBILITY IN SUPERCONDUCTINGY1Ba2Cu307 845
S. Ducharme, R. Durny, J. Hautala, O.G. Symko,P.C. Taylor, and Sudhir Kulkarni
ABSORPTION COMPONENT OF THE MAGNETIC SUSCEPTIBILITY INSUPERCONDUCTING YBa2Cu3O7 849
R. Durny, S. Ducharme, J. Hautala, O.G. Symko,P.C. Taylor, and Sudhir Kulkarni
A TUNNELING STUDY OF SUPERCONDUCTING YBa2Cu3Oy BYCONTACT JUNCTIONS AT 77 K 853
H.Enomoto, K.Gotoh, K.Iida, Y.Takano, N.Mori,and H. Ozaki
PHOTOINDUCED ABSORPTION IN THE LA2-xSrxCu04-δ SYSTEM:2 eV BANDGAP AND LONG-LIVED DEFECT STATES 857
A.J. Epstein, M.G. Roe, J.M. Ginder, F. Zuo,R.P. McCall, Y. Song, X.-D. Chen, J.P. Golben,J.R. Gaines, P.E. Wigen, and E. Ehrenfreund
LOGARITHMIC ROUNDING ABOVE THE SUPERCONDUCTINGTRANSITION IN YBa2Cu3O7 CRYSTALS 861
A.T. Fiory, A.F. Hebard, L.F. Schneemeyer,and J.V. Waszczak
LIGHT-INDUCED CURRENT SUPPRESSION OF SUPERCONDUCTINGYBa2Cu307-δ WEAK LINK 865
U. Kawabe, T. Nishino, Y. Tarutani, andH. Hasegawa
PRELIMINARY RESULTS ON YBCO/Nb BULK JUNCTION 869A. Barone, A. Di Chiara, G. Peluso, G. Pepe,M. Russo, and U. Scotti Di Uccio
USE OF HIGH-TEMPERATURE SUPERCONDUCTORS IN HIGH SPEEDELECTRONIC SWITCHES WITH CURRENT GAIN 873
Bryan A. Biegel and R. Singh
IRRADIATION EFFECTS INDUCED BY 2.5 MeV-ELECTRONS AND2.9 GeV-KRYPTON IONS IN THE HIGH Tc SUPERCONDUCTINGOXIDES 877
F. Studer, J. Provost, D. Groult, B. Raveau,S. Bouffard, M, Toulemonde, J,C. Jousset,and F. Rullier-Albenque
MAGNETISATION AND CRITICAL CURRENTS IN HIGH Tc POWDERS 883A.M. Campbell, A.D. Hibbs, J. Eberhardt, S. Male,M.F. Ashby, and J.E- Evetts
A STUDY OF THE TETRAGONAL-TO-ORTHORHOMBIC TRANSITION OFYBa2Cu3Ox BY DILATOMETRY 887
S.C. Han and Z.L. Wu
PART XIII: SUBSTITUTION, STRUCTURE, ETC. II
La!Ba2CU3O9-δ: STRUCTURAL ANALYSIS AS DETERMINED BYNEUTRON DIFFRACTION 89 5
J.P. Golben, Yi Song, S. Chittipeddi, S.I. Lee,R.D. McMichael, X.D. Chen, J.R. Gaines, D.L. Cox,and A.J. Epstein
X-RAY STUDY OF SUPERCONDUCTING Y1Ba2Cu3_xFex0y COMPOUNDS 899G. Gonzalez, D. Rios-Jara, T. Akachi, R. Barrio,L. Banos, and R. Escudero
EFFECT OF AMBIENT ATMOSPHERE ON YBa2CU3O7_y 903H.S. Horowitz, R.K. Bordia, R.B. Flippen, andR.E. Johnson
SYNTHESIS AND SUPERCONDUCTING PROPERTIES OF METASTABLEY(Ba2-xYx)Cu3O7+δ 907
Z. Iqbal, F. Reidinger, A. Bose, N. Cipollini,H. Eckhardt, B.L. Ramakrishna, and E.W. Ong
STRUCTURE AND Tc OF Lai_xYbxBa2Cu3O7_y LAYEREDPEROVSKITE SUPERCONDUCTORS 911
C. Jiang, S.M. Green, Yu Mei, H.L. Luo, andC. Politis
THERMAL CYCLING DEGRADATION OF YBa2Cu3O9_x SUPER-CONDUCTORS 915
Donald L. Kinser, Robert H. Magruder III,Ronald A. Quarles, and J. Dora Schaefer
HIGH RESOLUTION ELECTRON MICROSCOPY AND ELECTRONDIFFRACTION OF YBa2Cu3O7-x 919
William Krakow and Thomas M. Shaw
DIFFERENTIAL SCANNING CALORIMETRY AND GUINIER CAMERA/HIGH-TEMPERATURE X-RAY DIFFRACTION STUDIES OF THE
OXYGEN SUBLATTICE PHASE TRANSITION IN THE YBa2Cu3O7_xSYSTEM 923
David S. Lee, Zezhong Fu, Egon Hellstern,
William L. Johnson, Paul Pietrokowsky, andKonrad Samwer
THE MICROSCOPIC STUDY OF Y-Ba-Cu-0 COMPOUND 927W.T. Lin, H.C. Chu, B.H. Chen, Y.H- Chang,T.S. Chin, and P.T. Wu
METALLOGRAPHIC STUDIES OF SINTERED Y!Ba2Cu3O7_x 931J.D. Livingston, A.R. Gaddipati, and R.H. Arendt
THERMOGRAVIMETRIC STUDIES ON Ba2YCu3O7_x 935C. John Brannon, H.U. Anderson, and D.M. Sparlin
HYDROGEN IN YBa2Cu3O7_x HIGH Tc SUPERCONDUCTORS 939P. Berning, J. Collazo, A. Mashayekhi, andR,E. Benenson
X-RAY ABSORPTION STUDY OF Y1Ba2Cu3O7 AND GdiBa2Cu3O7SUPERCONDUCTORS 943
J.B. Boyce, F. Bridges, T. Claeson, R.S. Howland,and T.H. Geballe
ATOM PROBE MICROANALYSIS OF SUPERCONDUCTING YBa2Cu3O7_x 947S.S. Brenner and G.L. Kellogg
SUPERCONDUCTIVE PHASES AT" 150, -200 and 250 OR IN THESUBSTITUTED PEROVSKITE SERIES Y3_x (BaSr)xCu3O5-y 951
J.M, Dominguez, 0. Guzman, A. Montoya, P. Del Angel,D. Acosta, and C. Falcony
PROPERTIES AND STRUCTURES OF COPPER RICH Y-Ba-Cu-0SUPERCONDUCTORS 957
A.J. Drehman, J.A. Horrigan, and M.W. Dumais
TWINS IN YBa2Cu3O7_6 961
P.C. Gibbons, K.F. Kelton, Z.-Y. Li, L. Mantese,and L. Sobotka
STRUCTURE OF WATER AND ELECTRON BEAM DAMAGED HIGHTEMPERATURE SUPERCONDUCTORS 965
J.P. Zhang, D.J. Li, and L.D- Marks
THE ROLE OF H IN SUPERCONDUCTING HxYBa2Cu3O7 969C.Y. Yang, S.M. Heald, J.J. Reilly, andM. Suenaga
ALUMINUM INCORPORATION IN CUPRATE PEROVSKITES 973T. Siegrist, L.F. Schneemeyer, J.V. Waszczak,
S.A. Sunshine, N.P. Singh, R.L, Opila, B,Batlogg, L.W. Rupp, and D.W. Murphy
KINETICS AND THERMODYNAMICS OF THE REACTION OF MOLECULAROXYGEN WITH YBa2Cu3Ox 977
W.E. Farneth, R.K. Bordia, M.K. Crawford, L. Abrams,M.A. Subramanian, and E.M. McCarron III
MAGNETIC PROPERTIES OF SUPERCONDUCTING GdBa2Cu306+ ATLOW TEMPERATURE AND HIGH FIELD 981
C.Y. Huang, Y. Shapira, P.H. Hor, R.L. Meng,and C.W. Chu
THE GRANULAR BEHAVIOR OF LaSrCuO: OXYGEN CONCENTRATIONEFFECTS ON THE ELECTRICAL RESISTIVITY 985
E.Osquiguil, L.Civale, R.Decca, H.Safar,E.Martinez, G.Nieva, and F.De La Cruz
AUTHOR INDEX 989
SUBJECT INDEX 997