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TIB/UB Hannover

Plenary Lecture

PL 1 METAL-INSULATOR TRANSITION 1

N. Mott

PL 2 MAGNETIC STRUCTURE OF CHALCOGENIDES AND PNICTIDES 2

E.F. Bertaut

PL 3 TRANSITION METAL COMPOUNDS OF THE MAIN GROUP V AND3

VI ELEMENTS

A. Kjekshus

PL 4 ELECTRONIC STRUCTURE OF TRANSITION METAL COMPOUNDS5

O.K. Andersen

PL 5 MICROSCOPIC THEORY OF THE MIEDIMA CORRELATION8

A.R. Williams

PL 6 METAL CHALCOGENIDES AS REVERSIBLE ELECTRODES9

F.A, Trumbore

PL 7 SUPERCONDUCTIVITY AND STRUCTURE12

B.T. Matthias

PL 8 METALLIC GLASSES14

H.O. Guntherodt

PL 9 BONDING AND RELATIONSHIPS BETWEEN STRUCTURE ANDPHYSICAL 15

PROPERTIES OF CHEVREL-COMPOUNDS

K. Yvon

PL 10 HYDROGEN ABSORPTION AND MAGNETIC PROPERTIES OFINTERMETALLIC 18

COMPOUNDS BASED ON 3d ELEMENTS

K.H.J. Buschow

PL 11 STRUCTURAL RELATIONSHIP IN TRANSITION METALCOMPOUNDS ' 21

H.G. von Schnering

Poster Sessions

PO 1/ 1 CRYSTAL STRUCTURES OF TERNARY NITRIDESIN THE SYSTEMS 22

Nb-Ta-N, Nb-Mo-N, Ta-Mo-N and Ta-W-N

P. Ettmayer

PO 1/ 2 PREPARATION OF NbN SINGLE CRYSTALS24

B, Scheerer

PO 1/ 3 ELECTRONIC STRUCTURE OF METALLOID ANDMETAL VACANCIES IN NbN 26

P. Pecheur

PO 1/ 4 THE ELECTRONIC STRUCTURE OF HfCxN COMPOUNDS OBTAINED FROM29

X-RAY EXCITED PHOTOELECTRON SPECTRA

P. Steiner, H. Hbchst

PO 1/ 5 ON THE ELECTRONIC STRUCTURE OF UCAND UN 31

P. Weinberger

PO 1/ 6 BREMSSTRAHLUNG ISOCHROMATS OF CUBICTRANSITION METAL 33

MONOCARBIDES

K. Silberbach

PO 1/ 7 CHEMISORPTION, ELECTROCATALYSIS AND POINT DEFECTSIN 36

TUNGSTEN CARBIDE

W.S. Williams

PO 1/8 A NEUTRON POWDER DIFFRACTION STUDY OF K-(Fe-W-C) AND WgC 39

A. HaVsta

PO 1/ 9 OPTICAL PROPERTIES OF TRANSITION METALCARBIDES AND NITRIDES 42

FOR PHOTOTHERMAL CONVERSION

B. Karlsson

PO 1/10 EFFECTS ON THE ENERGY BANDS OF ScP44

E. Winimer

PO 1/11 AN ELECTRON MICROSCOPE STUDY OF CHEMICAL TWINNINGIN THE SYSTEM 47

H Y2S3M. Bakker

MnS + Y2S3

PO 1/12 THORIUM AND URANIUM POLYCHALCOGENIDES.i 48

NEW SYNTHESIS, CRYSTALLOGRAPHIC AND MAGNETIC INVESTIGATIONS

H. Noel

PO 1/13 STRUCTURE AND PROPERTIES OF TRANSITION METAL TRICHALCOGENIDES50

D.W. Bullett

PO 1/14 ON THIOMERCURATES(II): BagHgSg AND RELATED SULFIDES53

R. Hoppe

PO 1/15 THE FeS-Ga2S3 SYSTEM 55

N. Huy Dung

PO 1/16 IMPURITIES AND STOICHIOMETRY IN TiSe2 57

F. Levy

PO 1/17 STRUCTURAL AND PHYSICAL PROPERTIES OF MxNbS2 AND MxNbSe2 60

PHASES WITH M = TRANSITION METAL ELEMENTS OF THE FIRST SERIES

0. Gorochov

PO 1/18 HIGH PRESSURE PHASE TRANSFORMATION STUDIES OF Pdj^M Seg g3

(M = Rh, Ru, Co, Ni)

A. Wold

PO 1/19 TERNARY THALLIUM TRANSITIONMETAL SELENIDES: TITigSeg, 66

ie8, TlxTiK. Klepp

TlV5Seg, TlxTi6Se8

PO 1/20 PHASE RELATIONS IN THE VSe-VSe2 SYSTEM WITH AN EMPHASIS 69

ON THE EXISTENCE OF THE V2Se3 PHASEM. Nakahira

PO 1/21 THERMODYNAMIC AND PHASE DIAGRAM STUDIES IN THE 72

t fIROMIUM - TELLURIUM SYSTEM

H. Ipser

PO 1/22 PHASE DIAGRAM AND THERMODYNAMIC STUDIES OF IRON-SELENIUM 75

ALLOYS

W. Schuster, H. Ipser

PO 1/23 IMPURITY BAND FORMATION IN SEMICONDUCTING, Th3As4-RICH, 78

th3As4 - U3As4 SOLID SOLUTIONSP.J. Markowski, Z. Henkie

PO 1/24 ELECTRONIC STRUCTURE AND OPTICAL ABSORPTION SPECTRUM OF 81

NbS2Y2 AND NbSe2Y2 (Y = CI, Br, I)C. Haas

PO 1/25 VACANCIES AND CORRELATED DEFECTS IN TiSe2 STUDIED BY TIME 84

DIFFERENTIAL PERTURBED ANGULAR CORRELATIONS

T. Butz'

PO 1/26 TWO DIFFERENT ELECTRON DONATION MECHANISMS IN THE ORGANIC86

INTERCALATION COMPOUNDS TaS2(pyridine)1/2AND TaS2(p-phenyl-enediamine),

.2

A. Lerf

PO 1/27 STRUCTURAL ASPECTS AND METAL-NON METAL TRANSITION IN 88

(S-COMPQUNDSF. Besrest-Kel ler, G. Collin

Fe1_xS-COMP0UNDS

PO 1/28 METAL-NON METAL TRANSITION AND SHORT RANGE ORDER IN N11 FexS 90

E. Barthelemy, G. Collin

PO 1/29 STRUCTURAL CHEMISTRY OF NEW TANTALUM-COBALT-BORIDES 93

W. Steuerer

PO 1/30 THEORETICAL STUDY OF IMPURITY LEVELS IN ZINC SULPHIDE 96

J.J.P. Stewart

PO 11/ 1 CONDENSED CLUSTERS IN METAL-RICH TRANSITION METAL COMPOUNDS 98

A. Simon

PO 11/ 2 NEW COMPOUNDS CONTAINING Agg+ CLUSTER UNITS 101W. Hbnle

PO 11/ 3 THE ELIASHBERG FUNCTION OF TRANSITION METAL HEXABORIDES 103

G. ScheTl

PO 11/ 4 Tix 33S2 SUPERSTRUCTURE: A SUPPORT OF THE STUDY OF METAL- 106METAL INTERACTIONS

E. Tronc

PO 11/ 5 NEW SELENIUM-RICH NIOBIUM SELENIDES. RELATIONSHIP BETWEEN 109

PHYSICAL PROPERTIES AND THE OCCURENCE OF Nb-Nb PAIRS

A. Meerschaut

PO 11/ 6 THE CRYSTAL STRUCTURES OF AugP3 AND Au-^jgl, POLYPHOSPHIDES 112

WITH WEAK Au-Au INTERACTIONS

M.H. Mbller

PO 11/ 7 SYNTHESIS AND CRYSTAL STRUCTURE OF DIAMAGNETIC ReP4, 114

A POLYPHOSPHIDE WITH Re-Re PAIRS

R. RUhl

PO 11/ 8 SYNTHESIS AND TRANSITION TEMPERATURES OF THE SUPERCONDUCTING 116

?EL-PHASE SYST

F.J. Culetto

CHEVREL-PHASE SYSTEM CuxMo6S6I2 WITH X = 0 to 1.2

PO 11/ 9 STOICHIOMETRY, STRUCTURE, AND PHYSICAL PROPERTIES OF 119

NIOBIUM DISULFIDE

M.J. Sienko

PO 11/10 PHASE RELATIONSHIPS AND PROPERTIES IN THE Nb-N AND Ta-N SYSTEM 122

C. Politis

PO 11/11 FERROMAGNETIC SPIN CORRELATIONS IN SUPERCONDUCTING VN 125

H. Rietschel, H. Winter

PO 11/12 LATTICE DYNAMICS OF THE NITRIDES OF VANADIUM AND NIOBIUM 127

W. Reichardt

PO 11/13 STRUCTURAL MODEL AND EVOLUTION OF AMORPHOUS ALLOY Ni 55634 130F. Machizaud

PO 11/14 THE ELECTRONIC LOCAL DENSITY OF STATES IN METALLIC GLASSES 132

SUCH AS PD80Si20D.W. Bullet

PO 11/15 THE HYDRIDE PHASES Li" PtH AND Li PdH¥ 135y x y x

W. Bronger

PO 11/16 LATTICE PARAMETERS OF HYDRIDES AND DEUTERIDES OF LANTHANUM, 136

PRASEODYNIUM, AND NEODYMIUM

H. MLiller

PO 11/17 ANOMALY OF THE MAGNETIC BEHAVIOUR OF THE Re DIHYDRIDE 139

PHASE. EPR STUDY

H. Drulis

PO 11/18 LaNigAND CLOSELY RELATED MANGANESE OR ALUMINIUM SUBSTITUTED 142

DEUTERIDES: TEXTURE, DIFFRACTION PROFILE AND STRUCTURE ANALYSES

A. Percheron-Guegan

PO 11/19 NEUTRON DIFFRACTION STUDIES ON CEMENTITE. HYDROGEN REACTION 145

AND MAGNETIC STRUCTURE,

D. Fruchart

PO 11/20 TWO NEW TERNARY SUICIDES OF NIOBIUM-IRON RELATED TO MgZn2 AND 147

3-TYPE STRUCTLJ. Steinmetz

W5Si3-TYPE STRUCTURES

PO 11/21 BINARY AND TERNARY SUICIDES OF RARE EARTH METALS 150

R. Nesper

PO 11/22 COORDINATION ASPECTS ON SOME COMPOUNDS OF THE YbjSb-j TYPE 153

R. Berger

PO 11/23 STRUCTURAL STUDY OF 0 AND n-TYPE GERMANIDES Fe(Co)2_xGe, 155

AND OF THEIR ALLOYS WITH GALLIUM: Fe(Co)2_xGej GaB. Malaman

PO 11/24 RELATIONSHIP BETWEEN STRUCTURAL AND THERMODYNAMIC PROPERTIES 158 .

OF THE PHASES OF THE Cu FAMILY IN Tl0-B1SYSTEMS

M. Ellner

PO 11/25 OCCURRENCE OF B2 STRUCTURE IN THE ALLOYS OF TRANSITION METALS161

S. Bhan

PO 11/26 IRON AND TITANIUM PROTECTION FROM HIGH TEMPERATURE OXYDATION163

BY SUPERFICIAL SILICON IZATION

A. Galerie, M. Caillet

PO III/ 1 TERNARY LANTHANOID-TRANSITION METAL PNICTIDES WITH166

ThCr2Si2-rYPE STRUCTURE

R. Marchand

PO III/ 2 SYNTHESIS AND CRYSTAL STRUCTURE OF THE POLYPHOSPHIDES 168

FeP4, RuP4, AND 0sP4-D.J

.Braun

PO III/ 3 THE CORRELATION BETWEEN TRANSITION TEMPERATURE AND LATTICE 170

PARAMETERS IN Fe2P.L. Lundgren

PO III/ 4 ON THE CRYSTAL CHEMISTRY OF NEW TERNARY PHOSPHIDES OF NICKEL 173

AND NIOBIUM

R. Guerin

PO III/ 5 COORDINATION AND BONDING IN THE Fe3P-TigP-VjS-Hf3As FAMILY 176

OF STRUCTURES

J.O. Willerstrora

PO III/ 6 A NEUTRON POWDER DIFFRACTION STUDY OF DEUTERATED Pd3PQ 8Q 179

Y. Andersson

PO III/ 7 STRUCTURAL AND MAGNETIC PROPERTIES OF CoMnP 182

D. Fruchart

PO III/ 8 TRANSPORT PROPERTIES OF V SUBSTITUTED TiSg AND TiSe2 185

C.Levy-Clement

PO III/ 9 INTERPRETATION OF THE AMBIGUOUS MOESSBAUER SPECTRA OF Fe2P:, 188

STUDY OF A 57Co/FE2P SOURCEJ.P. Senateur

PO 111/10 A MOESSBAUER SPECTROSCOPIC STUDY OF Fe2P WITH Cu IMPURITIES 191

R. Wappling

PO III/ll MUSSBAUER STUDIES OF THE THIOSPINEL SYSTEMS 194

Fe0.25Zn0.75Cr2«Sl-xSex)4 AND FeCr2-xRhxS4E. Riedel, T. DUtzmann

PO 111/12 A MOSSBAUER STUDY OF r*2Pl-x^x ^Xl °-15' 197R. Wappling

PO 111/13 ELECTRONIC, STURCTURAL AND MAGNETIC PROPERTIES OF RARE EARTH 200

HYDRIDES

J.M. Friedt

PO 111/14 PHASE TRANSITIONSIN TmSe - TmTe 202

B. Fritzler, E. Kaldis

PO 111/15 SOLID STATE CHEMISTRY OF NONSTOICHIOMETRIC TmSe, 205

A COMPOUND WITH VALENCE FLUCTUATION

E. Kaldis

PO 111/16 INTERMEDIATE VALENT MAGNETIC TmSe AND ITS ALLOYS WITH Te 208

P. Wachter

PO 111/17 XPS STUDY OF THE COPPER AND ANION VALENCIES IN COPPER 211

CHALCOGENIDES

J. Folmer

PO 111/18 TERNARY SULFIDES OF RARE EARTHS AND 3 d ELEMENTS 213

J. Flahaut

PO 111/19 OXYSULFIDES OF RARE EARTHS AND 3 d ELEMENTS 215

J. Dugue

PO 111/20 PHOSPHIDES, ARSENIDES AND ANTIMONIDES OF DIVAIENT EUROPIUM 217

M. Wittmann

PO 111/21 STRUCTURES OF AMIDES IN THE SYSTEM CESIUM/LANTHANUM/AMMONIA 219

H. Jacobs

PO 111/22 NON-COMMENSURATE VACANCY ORDERING IN Yb3_xS4 220CM. Plug

PO 111/23 NOVEL PHOSPHORS: PREPARATION AND LUMINOPHORIC PROPERTIES 222

OF Cu-ACTIVATED La1()S140W. Wichelhaus

PO 111/24 STRUCTURAL CHEMISTRY AND MAGNETIC MOMENTS OF THE COBALT 225

-EARTH BORIDE HOMC

H.H. Stadelmaier

RARE-EARTH BORIDE HOMOLOGOUS SERIES Co3m+2GdmB2m_2

PO 111/25 CRISTALLOCHEMISTRY OF MlgP? PHASES IN RELATION WITH THE 227

M2P ONES

R. Madar

PO 111/26 NON COLINEAR MAGNETIC COMPONENT AND EXCHANGE 230

(ACTIONS IN V

D. Fruchart

INTERACTIONS IN Mn4N

PO 111/27 MAGNETIC PROPERTIES OF Fe3Sn2'

233

G. le Caer

PO 111/28 MAGNETOCHEMICAL INVESTIGATIONS ON Fe(III) IN SOME TERNARY 236

COMPOUNDS

G.A. Korteweg

PO 111/29 MAGNETIC PROPERTIES OF CRN NEAR ITS PHASE TRANSITION 239

R. Gerllng

PO 111/30 LOCALIZED AND ITINERANT d ELECTRONS IN KxCrSe2(0