ITALIAN PHYSICAL SOCIETY

CONFERENCEPROCEEDINGS

VOLUME 50

International Conference on theApplications of the Mossbauer Effect

ICAME-95edited by I. Ortalli

Rimini (Italy), 10-16 September 1995

UNtVERSITATS8IBiiOTHBCHANNOVER

TECHNISCHEtNFORMATIONSBIBLIOTHEK

1Italian Physical Society

Bologna - Italy

CONTENTS

I. ORTALLI - Opening page XXIII

1. CHEMICAL STRUCTURE AND BONDING

R. HINEK, A. HAUSER and P. GUTLICH - Cooperative effects and Instability in the[Fe(etz)6 ](BF4 )2 spincrossover system; spin transition in two lattice sites » 3

K. DRABENT, R. BRONISZ and F. RUDOLF - High-temperature spin-statetransitions in [Fe(4-NH2trz)3]SO4 » 7

R. BRONISZ, K. DRABENT, P. PO^OMKA and M. F. RUDOLF - The first non-doped/modified iron (II) spin transition system with a thermal hysteresis at roomtemperature » 11

R. BRONISZ, Z. CIUNIK, K. DRABENT and M. F. RUDOLF - New type of 2-D nets iniron(II) spin crossover systems - {Fe[N(entz)3]2}(BF4)2 » 15

H. WELKER, H. F. GRUNSTEUDEL, G. RITTER, R. LUBBERS, H.-J. HESSE, G.NOWITZKE, G. WORTMANN and H. A. GOODWIN - Combined Mossbauer andEXAFS study of the high-spin/low-spin transition in [Fe(II)(bpp)2 ](BF4 )2 » 19

S. DEISENROTH, H. SPIERING, D. SCHOLLMEYER, D. L. NAGY and P. GUTLICH- Results of time integral Mossbauer emission spectroscopy on[B7Co/Mn(bipy)3 ](PF6 )2 single crystals » 23

T. SATO and F. AMBE - Mixed-valence states of 67Fe-atoms produced in trinuclearcobalt-iron and trinuclear iron carboxylate complexes » 27

S. NAKASHIMA, A. HORI and H. SAKAI - Mossbauer spectroscopic study on themixed-valence state of 1',l'"-bis(a- and |3-naphthylmethyl)biferrocenes » 31

S. NAKASHIMA, S. NAKAZAKI and H. SAKAI - Mossbauer spectroscopic study on themixed-valence state of r,l'"-dialkylbiferrocenes » 35

F. VARRET, J. LINARES and K. BOUKHEDDADEN - A double origin proposed for thevarious Mossbauer spectra of biferrocenium derivatives: order-disorder andmolecular bistability » 39

N. KOJIMA, M. SETO and Yu. MAEDA - Single crystal 197Au Mossbauer spectroscopy •of gold mixed valence compound Cs2Au2I6 » 43

N. KOJIMA, H. SAKAI, M. SETO, S. KITAO and Yu. MAEDA - 129I Mossbaauerspectroscopy of gold mixed valence compound Cs2Au2I6 » 47

J.-M. R. GENIN, L. SIMON and PH. REFAIT - Existence of sulphite-containing greenrust one » 51

PH. REFAIT and J.M.R. GENIN - Chloride-containing ferrous hydroxides » 55

VII

6. HELGASON, F. J. BERRY, K. JONSSON and S. J. SKINNER - A study of theoxidation of tin-doped magnetite by 57Fe Mossbauer spectroscopy page 59

F. J. BERRY, R. GANCEDO, M. GRACIA, J. HOLLOWAY, J. F. MARCO and L. E. SMART- Mossbauer- and X-ray photoelectron spectroscopy study of iron-dopedzircon » 63

JING-KUN ZHANG, ZE-MIN ZHANG, AO YU, WEI-DONG ZHANG - A Mossbauereffect study of the cluster with Fe-Me bonds [Me = Cu, Cd, Zn, Hg, Ag] » 67

L. ALDON, P. E. LIPPENS, M. L. ELIDRISSI MOUBTASSIM, J, OLIVIER-FOURCADE, J.C. JUMAS, A. GHEORGHIU and C. SENEMAUD - Structural studies of crystallinethallium tellurides using Mossbauer effect, X-ray diffraction and X-rayphotoelectron spectroscopy » 71

J. OLIVIER-FOURCADE, J. C. JUMAS, M. WOMES, P. LAVELA, J. L. TIRADO and J.MORALES - Chemical insertion of SnS2. Characterization by X-ray diffraction,119Sn Mossbauer spectroscopy and X-ray absorption » 75

G. F. DE SOUSA, A. ABRAS and C. A. L. FILGUEIRAS - Structural features ofadducts of organotin halides as shown by U9Sn Mossbauer spectroscopy » 79

G. DENES and A. MUNTASAR - Ionic Tin(II) in non-stoichiometricB a i _ sSn^Cli + yF1_v » 83

GY. VANKO, Z. HOMONNAY, S. NAGY, A. VERTES, G. PAL-BORBELY and H. K.BEYER - 57Fe Mossbauer study of tris(2,2'-bipyridine) iron complexessynthesized in zeolite-Y » 87

V. YA. ROCHEV, V. G. BEKESHEV, YU. G. GALYAMETDINOV, N. N. SAWATEEV, F.E. WAGNER and G. GROSSE - Iron paramagnetic complexes—New class ofmetallomesogens » 91

M. LENGEN, M. GRODZICKI, E. BILL, A. X. TRAUTWEIN, TH. JUSTEL and K.WIEGHARDT - The limits of exchange interaction and chemical bond in the«Fe(III)-((i-N)-Fe(IV)» core of ji-nitrido di-iron complexes » 95

M. NAKADA, N. M. MASAKI, M. SAEKI, Y. ARATONO, Y. IKEDA and K. ENDO -Mossbauer spectroscopic study of iron selenate irradiated by 14 MeVneutrons » 99

M. MOTHER, A. X. TRAUTWEIN, E. BILL, R. HARBIG, K. SCHOBERT and R. W.SAALFRANK - Fe(II) containing coordination polymers via spontaneousself-assembly: from molecular to collective structures » 103

M. TAKEDA, M. TAKAHASHI, Y. YANAGIDA, S. KOJIMA and K.-Y. AKIBA - 121SbMossbauer spectra of six-coordinate antimony(V) complexes of hexafluoro-cumyl alcohol » 107

M. KATADA, T. ISHIYAMA, S. KAWATA, M. KONDO and S. KITAGAWA -161Eu-M6ssbauer spectroscopic studies of europium complexes » 111

S. KITAO, T. MATSUYAMA, M. SETO, YU. MAEDA, S. MASUBUCHI and S. KAZAMA -129I-M6ssbauer study of poly(3-alkylthiophene) » 115

M. SAEKI, M. NAKADA, N. M. MASAKI and A. NAKAMURA - Mossbauerspectroscopic study on Eu-Nb complex oxides » 119

J.-M. DURAND, M. L. ELIDRISSI MOUBTASSIM, J.-C. JUMAS, K. MILANTS, W.STEINER and G. LANGOUCHE - Interchain bonding in tellurium, from 12BTeMossbauer spectroscopy in a magnetic field : » 123

A. MUNTASAR and G. DENES - Investigation of new materials in theSnF2/BaCl2/H2O system » 127

T. OHYA and M. SATO - Electronic effects of substituents and axial ligands iniron(III) complexes of para-substituted tetraphenyl-porphyrins as studied byMossbauer spectroscopy » 131

VIII

2. PHYSICAL METALLURGY AND MATERIALS SCIENCE

A. D. AL-RAWAS, A. A. YOUSIF, H. H. SUTHERLAND, M. ELZAIN, R. D. GREENOUGHand J. H. PURDY - Mossbauer studies on Tb^FegoZrn) )100 _ x page 137

D. C. COOK, TAE H. KIM and J. C. RAWERS - Formation of BCT-Fe throughattritor ball-milling of iron powder in nitrogen » 141

P. M. A. DE BAKKER, E. DE GRAVE, E. VAN WALLE and A. FABRY - RPV steelembrittlement studied by Mossbauer spectroscopy » 145

L. TAKACS, H. DLAMINI and H. POLLAK - Effect of composition on the solid statereaction of magnetite with Al and Mg induced by mechanical alloying » 149

P. A. DE SOUZA jr., R. GARG, M. F. DE JESUS FILHO, G. P. SANTANA, V. K. GARGand I. NOWIK - Mossbauer hyperfine interactions in thermally treatedeuropium iron mixed oxide » 153

G. N. KONYGIN, E. P. YELSUKOV and V. A. BABINOV - Synthesis of amorphousFe-Si-C alloys by ball milling of Fe-Si powder in toluene » 157

J. LIPKA, J. HASCIK, V. SLUGEN, L. KUPCA, M. MIGLIERINI, R. GRONE, I. TOTH, K.VITAZEK and J. SITEK - Surveillance specimen program for the reactorpressure vessel study » 161

T. TSUJI, M. MIYATA, M. OCHIDA, M. NAKADA, N. M. MASAKI, M. SAEKI and Y.HINATSU - Eu-151 Mossbauer spectroscopy of cubic fluorite U0.7Eu03O2 ±„ andrhombohedral Eu6UO12 _ „. » 165

S. Music, B. HANNOYER, S. POPOVIC, M. LENGLET, I. CZAKO-NAGY, M. RISTIC andD. BALZAR - Formation of solid solutions in the system (CrxFei _ x )2O3,0 s= x « 1 » 169

Z. L. NKOSIBOMVU, H. POLLAK, M. J. WITCOMB and M. B. CORTIE - Effect of alloycomposition on aging of the ferrite phase in Fe-Cr alloys » 173

S. M. VAN EEK, F. H. SANCHEZ and A. F. PASQUEVICH - Mossbauer effect study ofHf2FeHx »> 177

0. SCHNEEWEISS, R. FIEDLER, S. HAVLICEK and J. CERMAK - Mossbauer study ofvolume and grain boundary diffusion of 57Co in Fe72Al28 alloy » 181

G. SIMON, M. A. Z. VASCONCELLOS and C. A. DOS SANTOS - Austenite formation onplasma nitrided low carbon steel » 185

J. SMITHERS, T. M. CLARK and B. J. EVANS - Polymetallic benzene polycarboxyla-tes as precursors for complex magnetic materials » 189

S. POPOVIC, B. GRZETA, G. STEFANIC, I. CZAKO-NAGY and S. Music - X-raydiffraction and Mossbauer spectroscopy of the system m-Zr02-a-Fe203 » 193

1. SPIROV, T. TOMOV and S. ASENOV - A Mossbauer study of the high temperaturebehaviour of iron dimers in copper » 197

Y. YOSHIDA, H. HABLEIN, F. E. FUJITA and H. NAKAJIMA - A precursor effectfollowed by the fast diffusion of Fe in p-TiFe alloys » 201

3. MAGNETISM AND MAGNETIC MATERIALS

R. E. VANDENBERGHE, T. BECZE-DEAK and E. DE GRAVE - The Morin transition inhematite: another approach for the Mossbauer spectral analysis » 207

X. L. ZHAO, S. J. CAMPBELL, J. M. CADOGAN, HONG-SHUO LI and P. W. THOMPSON- Magnetic properties of TbCo12B6 and SmCo12B6 » 211

IX

G. GROSSE, M. BAIER, G. F. SCHNEIDER, F. E. WAGNER, V. E. ANTONOV and T. E.ANTONOVA - Magnetic structure of hexagonal manganese hydride studied by119Sn Mossbauer spectroscopy page 215

L. CIANCHI, F. DEL GIALLO, F. PIERALLI and G. SPINA - Mossbauer spectroscopyof an antiferromagnetic iron cluster » 219

T. TAMAKI and A. ITO - Mossbauer studies of Fe^Nij _ ,,.C12 with competingorthogonal spin anisotropies at 4.2 K » 223

R. S. HUANG, H. M. WIDATALLAH, Y. F. HSIA, X. M. LEE, J. H. WANG, H. X. Luand G. H. TONG - Mossbauer and magnetic study of Fe1 _ XNL,. fineparticles » 227

P. VULLIET, J. P. SANCHEZ, J. THOMASSON, B. MALAMAN and R. WELTER -Mossbauer spectroscopy at very high pressures using the 125Te resonance » 231

M. STRECKER and G. WORTMANN - High-pressure study of GdMn2 with the86.5 keV resonance of Gd-155 » 235

J. BOGNER, P. MOHN, M. REISSNER, W. STEINER, K. SCHWARZ, S. MATAR and G.DEMAZEAU - Mossbauer investigations on the anti-perovskites NiFe3N andPtFe3N » 239

JIANGANG Lu, H. J. HESSE, J. ZUKROWSKI, J. PRZEWOZNIK and G. WORTMANN -Effect of pressure and temperature on the magnetic properties of TiFe2 » 243

H. KOBAYASHI, M. SATO, T. KAMIMURA, M. SAKAI, H. ONODERA, N. KURODA and Y.YAMAGUCHI - Mossbauer study on Fe-S system with a NiAs-type structureunderpressure » 247

S. BETTERIDGE, Q. A. PANKHURST, M. P. MORALES, K. O'GRADY and D. P. E.DICKSON - An investigation of the magnetic moment orientations in recordingmedia using polarized Mossbauer spectroscopy » 251

T. TSUJI and H. INAGAKI - Relation between coercivity and Mossbauer spectrumof cobalt-adsorbed y-Fe2O3 » 255

F. YLLI and Z. GJONAJ - Study of cation distribution in Al3 + and As3 + substitutedbarium hexaferrites » 259

P. WARTEWIG, M. K. KRAUSE, S. ROSLER and R. SONNTAG - Cation distributionand magnetic structure of Zn-Ti substituted M-type barium ferrite » 263

S. Music, M. GOTIC, I. CZAKO-NAGY, S. POPOVIC and D. BALZAR - A study of themechanochemistry of nickel ferrite by Mossbauer spectroscopy » 267

M. RISTIC, S. POPOVIC, I. CZAKO-NAGY and S. Music - Formation of oxide phasesin the system Fe2O3-Eu2O3 » 271

G. BALESTRINO, S. MARTELLUCCI, I. ORTALLI, G. PEDRAZZI, G. PETROCELLI and A.TEBANO - Mossbauer investigation of lithium ferrite epitaxial films grown bypulsed laser deposition » 275

G. ALBANESE, F. LECCABUE, B. E. WATTS and S. DIAZ - Mossbauer investigationof aluminum substituted PbFe12O19 hexagonal ferrite » 279

Y. KOBAYASHI, T. OKADA, Y. NORO, H. KITAZAWA and F. AMBE - Giant magnetichyperfine field of Ni2 + ions in spinel chromites » 283

T. M. CLARK, H. GARZA, G. K. THOMPSON and B. J. EVANS - Magnetic interaction,cation distributions, and order-disorder in synthetic and natural magnetoplum-bite » 287

L. F. MOREIRA, P. H. DOMINGUES and E. MATTIEVICH - Study of the seriesphosphoferrite-kryzhanovskite Fef +(PO4 )2 • (H2O)3 -H> Fef + (PO4 )2 • (OH)3 » 291

B. HANNOYER, L. PRESMANES, P. TAILHADES and A. ROUSSET - SubmicronCoFe2O4 ferrites studied by Mossbauer spectroscopy » 295

X

J. SATOOKA, S. MORIMOTO and A. ITO - The magnetic behaviour of Fe^Z^ _ XF2

with X = 0.69 and 0.36 probed by Fe Mossbauer time scale page 299NAI-LI DI, T. TAMAKI and A. ITO - Magnetic behavior of the mixed compound

Fe(Br06I04 )2 with bond random exchange frustration » 303G. M. DA COSTA, E. DE GRAVE, L. H. BOWEN and R. E. VANDENBERGHE - The

importance of applied-field Mossbauer spectroscopy for the characterization ofmaghemite and Al-substituted maghemites » 307

J. NAKAMURA, Y. KOBAYASHI, K. ASAI, N. YAMADA and F. AMBE - 67Fe Mossbauerspectroscopy of Fej + a;Sb » 311

J. PELLOTH, R. A. BRAND and W. KEUNE - Magnetic and electronic properties ofFe2Ti » 315

H. BREMERS, CH. JARMS and J. HESSE - Mossbauer spectra of Fe89 _ xMnn Alj. andtheir description in a local model » 319

M. FRICKE and J. HESSE - The spin freezing process in the re-entrant spin glasssystem (Fe66Ni35)100_cMnc » 323

M. TUSZYNSKI, W. ZAREK and E. S. POPIEL - Hyperfine field distributions inFe3 _ XVX Al alloys with DO3 type structure » 327

W. STEINER, H. WOGERBAUER, M. REISSNER, J. BOGNER, G. WIESINGER, TH.HAUFLER, J. ZUKROWSKI, J. PRZEWOZNIK and K. KROP - Field dependence ofthe magnetic hyperfine interaction in REMn2, RE = Dy, Ho » 331

J. A. HUTCHINGS, M. F. THOMAS, H. J. AL-KANANI and J. G. BOOTH - Mossbauerand magnetic studies of the alloy series (Fe1 _ tMnj )3Ga4 » 335

J. L. DORMANN, C. GODART, M. LATROCHE, E. ALLENO and J. JOVE - Structural,magnetic and 119Sn-M6ssbauer studies of new Eu-based materials EuM2Sn2,M = Cu,Pd,Pt » 339

I. NOWIK, I. FELNER and E. R. BAUMINGER - 151Eu and 57Fe Mossbauer studies ofEu valence and Mn magnetism in EuMn2Si2 _ ^Ge » 343

R. HATZL, M. REISSNER, M. FORSTHUBER, E. GRATZ, W. STEINER, G. WIESINGERand K. YVON - On structure and magnetic order in RCuSn (R = Nd, Sm,Gd) » 347

Y. AMAKO, H. NAGAI and H. YOSHIE - Mossbauer studies of RMn12 _ xFex

(R = rare earth) » 351A. M. GHANDOUR, T. ERICSSON, P. NORDBLAD and P. ONNERUD - a-Co2As studied

by 67Fe-M6ssbauer spectroscopy, squid magnetometry and neutron diffrac-tion » 355

J. PELLOTH, R. A. BRAND, S. TAKELE, M. M. PEREIRA DE AZEVEDO, W. KLEEMANN,CH. BINEK, J. KUSHAUER and D. BERTRAND - Local magnetic properties andmagnetic phase transitions in antiferromagnetic FeBr2 » 359

D. RAVOT, A. PERCHERON-GUEGAN, J. JOVE, J. L. DORMANN and O. GOROCHOV -119Sn Mossbauer spectroscopy study of the magnetic structure of Gd8Sn3 andHo5Sn3 » 363

M.-Z. DANG and D. G. RANCOURT - Monte Carlo simulations of temperature andcomposition dependent hyperfine field distributions in metallic alloys » 367

H. CONSTANT, J. LINARES, I. SHTETO, D. DESPAN, F. VARRET, J. G. HAASNOOT, J. P.MARTIN and J. ZAREMBOWITCH - Spin crossover dilution effects: Mossbauerdata and Monte Carlo simulations leading to a «superexchange» interaction ofsteric origin » 371

U. HILLER, M. K. KRAUSE, C. A. KLEINT, W. POTZEL, H. KARZEL, M. STEINER, W.SCHIESSL, G. M. KALVIUS, R. SONNTAG and E. RONSCH - Investigation ofhyperfine interactions in compounds with willemite structure » 375

XI

D. HANZEL - Mossbauer and magnetic investigations of hydrazinium iron fluoride(N2H5)2FeF6 page 379

H. P. GUNNLAUGSSON, C. BENDER KOCH and 0. HELGASON - Temperaturedependence of the Fe(II, III)/Fe(III) ratio in spinels from icelandic basalt(298-600 K) » 383

B. J. EVANS and T. M. CLARK - Anomalously high oxidation states of iron intektites: influence of sample preparation » 387

4. AMORPHOUS, QUASICRYSTALLINE AND NANOCRYSTAL-LINE MATERIALS

J. M. CADOGAN, Y. B. WANG, D. H. RYAN and S. J. CAMPBELL - Melt-spunNdFe9Si2 » 393

G. CONCAS, F. CONGIU, C. MUNTONI, M. BETTINELLI and A. SPEGHINI - Mossbauerspectroscopy of 1B1Eu in oxide glasses » 397

M. GAWRONSKI, K. BRZOZKA, K. JEZUITA, B. GORKA and K. SZYMANSKI -Mossbauer studies of magnetic phase transition at high temperature » 401

T. INAMURA, H. WAKABAYASHI, T. TORIYAMA, H. IIJIMA and T. TSUCHIYA- Mossbauer spectroscopy of a semiconductive phosphate glass(10MnO-30Fe2O3-60P2O5) at low temperature » 405

T. PRADELL, N. CLAVAGUERA, ZHU JIE and M. T. CLAVAGUERA-MORA - Shortrange order changes in the remaining amorphous phase during heat treatmentof Fe73.5CujNb3Sij7.5B6 alloy » 409

E. KUZMANN, S. VITKOVA, G. PRINCIPI, S. ARMYANOV, D. POPOV and C. U.CHISHOLM - Magnetic behavior of Fe-Ni based electrodeposited amorphousalloys » 413

M. MIGLIERINI, I. TOTH, J. SITEK and J. LIPKA - Structural transformations in theheat treated amorphous Fe(Cu)ZrB » 417

V. KUNCSER, G. FILOTI, A. AVRAMESCU, L. CRISTEA, A. JIANU, J. L. DORMANN, M.NOGUES and M. SEQQAT - Investigation of thin films and ribbons of Fe-Sm-B,,(y = 0 or 20) systems using Mossbauer and magnetic measurements » 421

T. NISHIDA - Structural study of inorganic glass and glass-ceramics by theMossbauer effect and the FT-IR spectroscopy » 425

C. S. M. PARTITI, H. R. RECHENBERG, S. K. XIA and E. BAGGIO-SAITOVITCH -Debye temperature change induced by structural relaxation in Cr65Fe35

amorphous powder » 429T. PRADELL, N. CLAVAGUERA, J. J. SUNOL and M. T. CLAVAGUERA-MORA - Ball

milling amorphization progress in Fe4oNi4OPloSilo » 433N. N. SAWATEEV, V. I. KALITA, I. D. KOMLEV and O. Yu. NARTOVA - Mossbauer

study of amorphous and nanocrystalline Fe735Cu1Nb3Sii35B9, obtained by theplasma coating method » 437

P. J. SCHURER, J. L. LACOMBE, X. Y. Liu and J. A. BARCLAY - Magnetic propertiesof amorphous R70Fe30 alloys (R = Tb, Dy, Ho, Er) » 441

H. ITOH, T. INAMURA, H. WAKABAYASHI, T. TORIYAMA and H. IIJIMA - Mossbauerspectroscopy on an alkali phosphate 20Na2O-20Fe2O3-60P2O5 glass at lowtemperature » 445

H. AGHAMOHAMMADZADEH, J. M. WILLIAMS and M. R. J. GIBBS - Magnetic momentdistribution in amorphous ribbon and thin films of Fe81Si35B135C2 studied byMossbauer spectroscopy » 449

XII

R. D. TAYLOR, G. R. HEARNE and M. P. PASTERNAK - Pressure-inducedtransformations in molecular crystals page 453

K. KINOSHITA, H. WAKABAYASHI, T. INAMURA, T. TORIYAMA and H. IIJIMA -Intrinsic temperature dependence of the isomer shift in a-Fe2O3 » 457

T. MEAZ, S. M0RUP and C. BENDER KOCH - Carbon-supported iron oxideparticles » 461

G. CONCAS, F. CONGIU, C. MUNTONI and M. BIONDUCCI - Mossbauer study ofamorphous Fe2Zr alloys » 465

S. T. LIN, C. R. LIN and I. S. LYUBUTIN - New magnetic icosahedral quasicrystalsin the series Al70 _ P d ^ _ yFey » 469

M. N. K. WILLCOX, J. M. WILLIAMS, H. A. DAVIES, J. F. Liu and R. YAPP -Mossbauer spectroscopic phase analysis of nanocrystalline Fe-Nd-B basedalloys » 473

J. MAKNANI, J. L. DORMANN, L. SUBER, D. FIORANI and F. BENSAMKA - Mossbauerstudies of amorphous Fe80 - Cr^B^ nanoparticles » 477

G. RIXECKER, R. BIRRINGER, H. GLEITER and U. GONSER - Mossbauer effect of67Fe at grain boundaries in ball milled tungsten » 481

P. PRENE, E. TRONC, J. P. JOLIVET and J. L. DORMANN - Mossbauer spectra ofy-Fe2O3 nanoparticles » 485

J. VERHEYDEN, J. DEKOSTER, S. DEGROOTE, A. VANTOMME, W. DEWEERD and H.PATTYN - Mossbauer study of Co Nanoclusters in Ag » 489

T. GRAF, M. KOPCEWICZ, A. GRABIAS, T. GIRCHARDT and J. HESSE - Field intensitystudies of the r.f. sideband and collapse effect in Fe73 5CuiNb3Sii3 5B9 » 493

T. GIRCHARDT, T. GRAF, J. HESSE and E. WOLDT - Comparative Mossbauer-studyof Fe73.5CuxM0sSii3.5B9 and Fe73.5CUiNb3Sij3.5B9 » 497

I. P. SUZDALEV, V. N. BURAVTSEV, V. K. IMSHENNIK, Y. V. MAKSIMOV, V. V.MATVEEV, S. V. NOVICHIKHIN, A. X. TRAUTWEIN and H. WINKLER - Magneticproperties of ultrafine ferrihydrite clusters studied by Mossbauer spectroscopyand thermodynamic analysis » 501

MING MAO, Z. ALTOUNIAN and D. H. RYAN - Short range ordering and structuralrelaxation in Zr-based metal-metal glasses » 505

R. S. DE FIGUEIREDO and J. FOCT - Mossbauer study of superstructures inducedby mechanical alloying in nanocrystalline (Me^Fei _ X)4N nitrides » 509

H. KARZEL, G. MCMAHON, U. HILLER, W. POTZEL, W. SCHIESSL, M. STEINER, G.M. KALVIUS and H. GLEITER - Lattice dynamics of nanostructured ZnO » 513

Yu. D. PERFILIEV, L. N. KHOLODKOVSKAYA, YU. M. KISELEV and L. A. KULIKOV -Mossbauer, X-ray and EPR studies of Fe doped sodium and cesiumruthenates » 517

M. KOPCEWICZ, A. GRABIAS and P. NOWICKI - R.f.-M6ssbauer study of thenanoscale b.c.c. Fe phase formed due to annealing of amorphous FeZrBCualloys » 521

T. MEAZ, C. BENDER KOCH and S. M0RUP - Influence of inter-particle interactionson the superparamagnetic relaxation time in a sample of nano-sized feroxyhyteparticles ' » 525

J. Z. JIANG, S. M0RUP, T. JONSSON and P. SVEDLINDH - Effect of inter-particleinteractions on the superparamagnetic relaxation time in ferrofluids » 529

YUFANG ZHENG, ZHENGFANG YU, WENHAO LIU, XINGWU TONG, GUANGMING LINand QIFA ZHOU - Study of nanocrystalline tin oxides by Mossbauerspectroscopy » 533

XIII

B. KOPCEWICZ and M. KOPCEWICZ - Determination of the size distribution of ironcontaining particles in atmospheric aerosols page 537

G. R. HEARNE, M. P. PASTERNAK, G. KH. ROZENBERG, A. P. MILNER and R. D.

TAYLOR - Mossbauer studies of Sr2Fe04 to pressures of 20 GPa » 541

5. SUPERCONDUCTORS

L. HAGGSTROM, E. NORDSTROM and A. GHANDOUR - Lattice softening in the

superconductor YBa2(Cui _ j-Fej. )4O8 » 547

Z. HOMONNAY, M. GAL, G. VANKO, E. KUZMANN and A. VERTES - Microprobing of

the Cu(l)-site in 1-2-3-type superconductors by 67Co: the peculiarity of theemission Mossbauer results » 551

H. INO, H. MINAMIMOTO, H. SHIIBASHI, K. KIMURA and T. HASEGAWA - Magnetic

hyperfine interaction in superconductive Bi-based oxides » 555

A. BUSTAMANTE DOMINGUEZ, R. B. SCORZELLI, E. BAGGIO-SAITOVITCH, J. ALBINOAGUIAR and J. M. FERREIRA - Mossbauer studies of superconducting oxidescontaining FeS » 559

6. SEMICONDUCTORS, ELECTRONIC AND OPTICAL MATERIALS

N. NADAUD and J. JOVE - A 119Sn Mossbauer study of the In2O3-SnO2 system(ITO) » 565

A. A. OPALENKO, A. A. KORNILOVA, A. I. LEONOV and Y. E. SEVASTYANOV -

Diffraction of Mossbauer radiation under ultrasonic excitation of crystals » 569

H. REUTHER, H. LANGE, M. DOBLER and J. SCHUMANN - CEMS studies on ironsilicides » 573

7. SURFACES, INTERFACES, MULTILAYERS

W. DEWEERD, G. LANGOUCHE, R. MOONS, H. PATTYN and J. VERHEYDEN -

Proximity gettering of Co to the internal surface of nanosized cavities in Sistudied by Mossbauer spectroscopy » 579

A. MIYAZAKI and M. MATSUO - A study on adsorption states of ferrous and ferricions on amorphous aluminosilicate » 583

K. KUROSAWA, M. HOSHINO, H. L. LI , Y. UJIHIRA and K. NOMURA - CEMS and

XMS studies of surface layers of carbonitrized stainless steels » 587

H. SATO and T. KAKUTANI - Mossbauer spectroscopic study of ferrocene adsorbedon spherical silica powders » 591

L. RlSSANEN, K. P. LlEB, M. NlEDERDRENK, 0. SCHULTE and P. SCHAAF -Structure and stability of the new cubic FeN phase produced by magnetronsputtering *» 595

M. PRZYBYLSKI, J. PROKOP, P. AURIC and J. KORECKI - Magnetic properties of

Fe/Ru interface » 599T. BARANCIRA, J. DE WACHTER, K. MILANTS and H. PATTYN - Microscopic study of

P-Sn inclusions in Si using the Mossbauer resonance in 119Sn » 603

M. RAHMOUNE, J. P. EYMERY and A, FNIDIKI - Annealing behaviour of the

Fe/GaAs system » 607

XIV

M. PRZYBYLSKI, J. KORECKI, W. KARAS and U. GRADMANN - Magnetic hyperfinefields near the Fe(110)/noble-metal interface page 611

T. FALDUM, W. MEISEL and P. GUTLICH - Preparation of ultra-thin Fe/Ni alloysby thermal and chemical treatment of Langmuir-Blodgett films » 615

Y. KOBAYASHI, S. NASU, T. EMOTO and T. SHINJO - 197Au and 57Fe Mossbauerstudy of Au/Fe multilayers » 619

S. DEGROOTE, A. VANTOMME, J. DEKOSTER, R. MOONS and G. LANGOUCHE -Conversion electron Mossbauer study of epitaxial cubic metastable ironsilicides » 623

M. E. BRUCKMANN, A. PAESANO jr., S. R. TEIXEIRA and L. AMARAL - Growthkinetics and magnetic behaviour of solid state reacted Fe-Zr multilayerfilms » 627

E. C. PASSAMANI, K. MIBU, E. BAGGIO-SAITOVITCH and T. SHINJO - 151EuMossbauer study of V/Eu, Cr/Eu, Fe/Eu and Co/Eu multilayers » 631

I. SAKAMOTO, N. HAYASHI, K. KOGUMA, M. NAWATE and S. HONDA - CEMS studyof the magnetic properties of Au/Fe multilayers » 635

V. M. UZDIN and N. S. YARTSEVA - Quantum well states in the metallic magnetictrilayers and superlattices » 639

M. KOPCEWICZ, T. STOBIECKI, A. GRABIAS and M. CZAPKIEWICZ - Microstructure ofFe/Ti multilayers prepared by r.f.-sputtering deposition.... » 643

8. CORROSION, CATALYSIS

P . W. DE BONT, M. J . VlSSENBERG, E . BOELLAARD, R. A. VAN SANTEN, V. H. J . DEBEER, J. A. R. VAN VEEN and A. M. VAN DER KRAAN - Formation anddecomposition of cobalt-sulfide clusters in NaY-zeolite » 649

SEI J. OH, D. C. COOK and A. C. VAN ORDEN - Mossbauer study of the corrosionproducts on steel exposed in a marine environment » 653

S. SANTUCCI, L. LOZZI, F. E. WAGNER and S. CALOGERO - Preliminary 197AuMossbauer results concerning gold clusters produced by deposition of metallicgold on mylar » 657

L. STIEVANO, S. CALOGERO, F. E. WAGNER, C. MILONE and S. GALVAGNO - 197AuMossbauer studies of gold supported on alumina, silica, and magnesia » 661

K. FUKUMURA, A. NAKANISHI and T. KOBAYASHI - CEMS study of corrosionformed on iron foils between 14 and 295 K » 665

A. NAKANISHI, K. FUKUMURA and T. KOBAYASHI - CEMS study of corrosionproducts by acid water » 669

Q. A. PANKHURST, S. BETTERIDGE, J. S. J. HARGREAVES, R. W. JOYNER, G. J.HUTCHINGS and S. H. TAYLOR - Iron sodalite catalysts for the oxidation ofmethane to methanol » 673

E. BOELLAARD, J. P. A. NEEFT, M. MAKKEE, J. A. MOULIJN and A. M. VAN DERKRAAN - Mossbauer spectroscopy study of Fe2O3 as an oxidation catalyst forcarbonaceous materials ,» 677

9. ION IMPLANTANTION AND DEFECTS

K. BHARUTH-RAM, M. HARTICK, C. DORN, P. HELD, E. KANKELEIT, J. P. F.SELLSCHOP, R. SIELEMANN, L. WENDE and J. KUBLER - In-beam Mossbauerspectroscopy of 67Fe implanted in diamond » 683

XV

M. DOBLER, H. REUTHER, M. BETZL and M. MADER - Investigation of ion beamsynthesized iron silicide layers by conversion electron Mossbauer spec-troscopy page 687

A. FAUSSEMAGNE, G. MAREST, A. BENYAGOUB and N. MONCOFFRE - Mossbauerstudy of boron and nitrogen dual implantations in a 100Cr6 steel » 691

P. SCHAAF, A. CRESPO-SOSA, K.-P. LIEB, W. BOLSE and C. TOSELLO - Microscopicphenomena during ion beam mixing in the immiscible Ag-Fe system observedby CEMS » 695

S. KRUIJER, H. REUTHER, 0. NIKOLOV, R. A. BRAND, W. KEUNE, D. LILJEQUIST, S.WEBER and S. SCHERRER - DCEMS investigations of aluminium implantediron » 699

K. NOMURA, H. REUTHER, E. RICHTER and Y. UJIHIRA - CEMS study on magneticstructure of Fe-Si-Al films implanted with Al and N ions » 703

G. PRINCIPI, R. GUPTA, E. JANNITTI, C. TOSELLO, L. M. GRATTON, E. KUZMANN andI. VARGA - Structural investigation of Fe-Ni-Cr films prepared by non-equilib-rium techniques » 707

10. MINERALOGY, GEOLOGY AND ARCHEOLOGY

R. B. SCORZELLI, I. SOUZA AZEVEDO, I. ORTALLI, G. PEDRAZZI, A. BONAZZIand M. CHRISTOPHE MICHEL-LEVY - The Alfianello meteorite: a mislabelledsample » 713

C. A. BARRERO, R. E. VANDENBERGHE, E. DE GRAVE and G. M. DA COSTA - Aqualitative analysis of the Mossbauer spectra of aluminous goethites based onexisting models » 717

J. BLOMQUIST, P. KJALL, M. MALMSTROM and S. BANWART - Mossbauer studies ofthe weathering process in some mica minerals » 721

G. PEDRAZZI, E. SCHINGARO and F. SCORDARI - Mossbauer and related studies ofTi-rich garnets from Mt. Vulture, Italy » 725

E. DE GRAVE and A. VAN ALBOOM - Mossbauer study of synthetic ferriandiopsides » 729

C. R. BLUNCSON and B. J. EVANS - 67Fe Mossbauer investigation of a naturallyoccurring zinc-rich franklinite from Langban, Sweden » 733

A. M. GISMELSEED, F. KHANGI, I. H. HAG MUSA, A. IBRAHIM, A. A. YOUSIF, M. E.ELZAIN, M. A. WORTHING and H. H. SUTHERLAND - Mossbauer, XRD and SEMstudies on Kapoeta meteorite » 737

F. J. BERRY, P. A. BLAND and C. T. PILLINGER - Iron-57 Mossbauer spectroscopicstudies of meteorites for the characterisation of palaeoclimatic conditions » 741

T. M. CLARK and B. J. EVANS - Comparative analysis of the petrogenesis and ironoxidation states in tektite glasses: Muong Nong Va. splash-form tektites » 745

0. HELGASON, N. OSKARSSON, K. JONSSON and E. GUNNLAUGSSON - Redistributionof iron among mineral phases during geothermal alteration of basalt, recordedby Mossbauer spectroscopy '. » 749

J. L. LACOMBE, P. J. SCHURER and J. S. MOTHERSILL - Fe 2 + /Fe 3 + ratio vs.sediment depth in Kennedy Lake and Sproat Lake, British Columbia,Canada » 753

M. MATSUO, B. TAKANO and K. SUGIMORI - B7Fe Mossbauer spectroscopic study ofestuarine sediments taken from the Tama River in Tokyo » 757

XVI

S. PETRICK C. and R. B. SCORZELLI - Mossbauer study of Peruvian pyroclasticrocks page 761

P. A. DE SOUZA jr., 0. D. RODRIGUES, V. K. GARG, E. KUZMANN, S. NAGY, A.VERTES and T. WEISZBURG - Characterization of iron minerals in gondite rocksfrom two different regions of Brazil » 765

J. ADETUNJI, J. M. WILLIAMS and R. C. P. DOONAN - Mossbauer spectroscopicstudies of ancient bronze slags » 769

J. FRIEDL, A. FUSSEL, A. R. GEBHARDT, A. KYEK, G. LEHRBERGER, T. KOBAYASHI,M. REGEN and F. E. WAGNER - 197Au CEMS study of Celtic gold coins » 773

F. GAUZZI, B. VERDINI, G. PRINCIPI, R. GUPTA, A. RACCANELLI and U. Russo -Structural study of an Etruscan axe » 777

R. GEBHARD, G. GROBE, G. LEHRBERGER, J. RIEDERER, F. E. WAGNER and U.WAGNER - What Mossbauer spectroscopy can tell us about precious metalworking in Celtic times » 781

J. LINARES, Y. FUCHS, M. LAGACHE and J. L. ROBERT - A Mossbauer study ofsynthetic tourmaline » 785

P. H. J. MERCIER, D. G. RANCOURT and R. G. BERMAN - Aspects of the crystalchemistry of annite mica » 789

R. B. SCORZELLI, I. SOUZA AZEVEDO, E. GALVAO DA SILVA and K. TOMEOKA - AMossbauer study of the Belgica-7904 carbonaceous chondrite: estimation ofthermal metamorphic grade » 793

S. WIBMANN, D. NIEMEIER and K. D. BECKER - High-temperature studies of cationdistribution and iron diffusion in olivines » 797

V. RUSANOV, K. CHAKAROVA and V. ANGELOV - Mossbauer study of the growthconditions of the Fe-Mn sediments as new paleoclimatic records » 801

M. F. HANSEN, C. BENDER KOCH and M. B. MADSEN - Superparamagnetism in aMars sample analogue » 805

11. BIOLOGY AND MEDICAL APPLICATIONS

A. GARBERS, J. KURRECK, F. REIFARTH, G. RENGER and F. PARAK - Investigationson the iron of photosystem II membrane fragments » 811

B. F. MATZANKE, R. BOHNKE, C. HENNARD, M. ABDALLAH, W. J. PAGE, E. BILL, V.SCHUNEMANN and A. X. TRAUTWEIN - Diversity of iron storage in bacteria—AMossbauer spectroscopic comparison of E. coli and A vinelandii » 815

W. MEYER, V. SCHUNEMANN, H. WINKLER, A. X. TRAUTWEIN, E. BILL, J. HAAVIK,A. MARTINEZ, T. FLATMARK and H.-F. NOLTING - Characterization of the ironenvironment in human tyrosine hydroxylase, using Mossbauer-, EPR-, andEXAFS-spectroscopy » 819

T. G. ST. PIERRE, P. CHAN, J. WEBB, S. BETTERIDGE, S. WALTON and D. P. E.DiCKSON - Mossbauer spectral study of ferritins reconstituted with iron andphosphate » 823

S. Z. CAI, I. ORTALLI and G. PEDRAZZI - Analysis of Mossbauer spectra ofoxyhemoglobin » 827

T. HARAMI, G. MIYAZAKI, M. SETO, X. W. ZHANG, Y. KOBAYASHI, Y. YODA, H.SHIWAKU, S. NASU and S. KIKUTA - Inelastic nuclear resonant scattering byhemoglobin CO at room temperature » 831

H.-D. PFANNES, M. D. MARTINS and A. I. C. PERSIANO - Mossbauer study ofhemoglobin nitric oxide » 835

XVII

H. FLINT, A. X. TRAUTWEIN, H. WINKLER, M. GRODZICKI, J. L. WRIGHT, J. R.POLAM and F, A. WALKER - Electronic structure and fluxional distortion ofbis-ligated synthetic Fe(II)-porphyrins page 839

M. KROCKEL, A. X. TRAUTWEIN, M. GRODZICKI, V. PAPAEFTHYMIOU, A. KOSTIKAS,A. F. ARENDSEN and W. R. HAGEN - Superexchange and double exchange insuperclusters: peculiar redox properties in enzymes and model compoundsdetected by Mossbauer spectroscopy » 843

E. M. COE, R. D. BEREMAN and L. H. BOWEN - Mossbauer spectroscopiccharacterization of oral hematinics » 847

12. SYNCHROTRON RADIATION STUDIES, GAMMA OPTICS

H. F. GRUNSTEUDEL, H.-J. HESSE, A. I. CHUMAKOV, H. GRUNSTEUDEL, 0.LEUPOLD, J. METGE, R. RUFFER and G. WORTMANN - The a-Fe/e-Fe-transitionas an example of nuclear forward scattering on 67Fe under high pressure » 853

0. LEUPOLD, H. GRUNSTEUDEL, W. MEYER, H. F. GRUNSTEUDEL, H. WINKLER, D.MANDON, H. D. RUTER, J. METGE, E. REALO, E. GERDAU, A. X. TRAUTWEIN andR. WEISS - Nuclear resonant forward scattering of synchrotron radiation bythe synthetic iron porphyrin FeO2(SC6HF4 )(TPpivP) » 857

E. REALO, M. HAAS, W. MEYER, 0. LEUPOLD, H. WINKLER, H. GRUNSTEUDEL, H.F. GRUNSTEUDEL, J. METGE, E. GERDAU and A. X. TRAUTWEIN - Aspin-Hamiltonian system in the time domain: nuclear resonant forwardscattering by ferrous high-spin iron [Fe(CH3CO2 )(TPpivP)] » 861

W. C. MCDERMOTT III and G. R. HOY - Time-domain Mossbauer spectroscopy: theinelastic channel » 865

13. THEORY AND METHODOLOGY

J. K. DEWHURST, H. POLLAK and H. DLAMINI - A fast windows fitting program forMossbauer spectra » 871

V. ANGELOV, V. RUSANOV, Ts. BONCHEV, I. MANDJUKOV and TH. WOIKE -/ ' * / " » 875

J. JUNG, H. SPIERING and P. GUTLICH - The factorization of the Mossbauer-Lambfactor in a spincrossover molecular crystal » 879

LIXIN Dou, R. J. W. HODGSON and D. G. RANCOURT - Bayesian inference theoryapplied to hyperfine field distribution extraction » 883

M. STEINER, W. POTZEL, H. KARZEL, W. SCHIESSL, M. KOFFERLEIN, G. M.KALVIUS and P. BLAHA - Influence of conduction electrons on the latticedynamics in zinc metal » 887

K. SZYMANSKI - 57Co in Cr matrix as a single line polarised source » 891PH. BAUER and G. MARCHAL - Low temperature conversion electron Mossbauer ,

spectrometry » 895T. KOBAYASHI, K. FUKUMURA and A. NAKANISHI - Low-temperature CEMS with

a proportional counter for investigating magnetic properties of fineparticles » 899

J. K. DEWHURST, H. POLLAK, U. KARFUNKEL and Z. NKOSIBOMVU - Recoilfree-fractions from isomeric shift measurements » 903

XVIII

14. INDUSTRIAL APPLICATIONS

M. GULUMIAN, J. A. LODYA, R. E. G. RENDALL, J. A. VAN WYK and H. POLLAK -Mossbauer spectroscopic investigations of South African foundry dustclouds page 909

K. KUROSAWA, HONG-LING LI, Y. UJIHIRA and K. NOMURA - Characterization ofoxidized layers formed on the surface of carbonitrided carbon steel by CEMS,XRD and XPS » 913

F. WOLF, P. MATTEAZZI, L. PIANI and D. BASSET - Mechanosynthesis of AISI M2high speed steel » 917

E. RAMOUS, M. MAGRINI and A. ZAMBON - Reversion of austenite in martensiticstainless steels » 921

T. Q. CODDINGTON and D. C. COOK - Mossbauer spectroscopy of aluminumsubstituted galvanneal steel » 925

R. G. GRANT and D. C. COOK - Iron-zinc phase identification in commercialgalvanneal steel coatings » 929

G. FILOTI, V. SPANU, V. KUNCSER and C. N. TURCANU - A Mossbauerinvestigation of mixed hydrated cements as a part of radioactive wasteconditioning » 933

15. CONCLUSIONS

R. COUSSEMENT - Concluding remarks » 939

APPENDIX

G. PREPARATA - The Mossbauer effect: a glimpse of the stunning QED coherenceof matter » 955

List of Participants » 979

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