Le Journal de Physique Colloques

METAL-NON METAL TRANSITIONS IN TRANSITION METAL COMPOUNDS.THE ELECTRONIC PHASE TRANSITIONS IN FeS AND NiS p. C4-1

J.M.D. COEY, H. ROUX-BUISSON and R. BRUSETTI

DOI: https://doi.org/10.1051/jphyscol:1976401

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SEMICONDUCTOR TO TRANSITION IN FeS p. C4-11

M.G. TOWNSEND, J.R. GOSSELIN, R.J. TREMBLAY and A.H. WEBSTER

DOI: https://doi.org/10.1051/jphyscol:1976402

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METAL-NON METAL TRANSITION OF Ni_1-xS AND NiS SUBSTITUTED by Se, As and Fe : TRANSPORT PROPERTIES AND STRUCTURAL ASPECT p. C4-17

E. BARTHELEMY, C. CHAVANT, G. COLLIN and O. GOROCHOV

DOI: https://doi.org/10.1051/jphyscol:1976403

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PHYSICAL PROPERTIES OF COMPOUNDS NiS_2-xSe_x WITH PYRITE STRUCTURE : METAL-NON METAL TRANSITION, EVIDENCE FOR THE EXISTENCE OF AN ANTIFERROMAGNETIC METALLIC PHASE p. C4-23

G. KRILL, P. PANISSOD, M.F. LAPIERRE, F. GAUTIER, C. ROBERT, G. CZJZEK, J. FINK, H. SCHMIDT and R. KUENTZLER

DOI: https://doi.org/10.1051/jphyscol:1976404

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MAGNETIC AND ELECTRICAL PROPERTIES OF Co(As_xS_1-x)₂ AND Ni(As_xS_1-x)₂ p. C4-29

K. ADACHI, E. TOGAWA and F. KIMURA

DOI: https://doi.org/10.1051/jphyscol:1976405

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ELECTRICAL TRANSITIONS IN PURE AND DOPED V₂O₃ p. C4-35

H. KUWAMOTO, H.V. KEER, J.E. KEEM, S.A. SHIVASHANKAR, L.L. VAN ZANDT and J.M. HONIG

DOI: https://doi.org/10.1051/jphyscol:1976406

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METAL-INSULATOR TRANSITION IN (Ti_1-xV_x)₂O₃ : IMPURITY BAND CONDUCTION AND SPIN GLASS PROPERTIES p. C4-41

J. DUMAS and C. SCHLENKER

DOI: https://doi.org/10.1051/jphyscol:1976407

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METAL-INSULATOR PHASE TRANSITION IN VO₂ p. C4-49

J.P. POUGET and H. LAUNOIS

DOI: https://doi.org/10.1051/jphyscol:1976408

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NEAR BAND GAP OPTICAL ABSORPTION IN SEMICONDUCTING VO₂ p. C4-59

P. MERENDA, D. KAPLAN and C. SOMMERS

DOI: https://doi.org/10.1051/jphyscol:1976409

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METAL-NONMETAL TRANSITION IN Fe- AND Al-DOPED VO₂ p. C4-63

W. BRÜCKNER, U. GERLACH, W. MOLDENHAUER, H.-P. BRÜCKNER, B. THUSS, H. OPPERMANN, E. WOLF and I. STORBECK

DOI: https://doi.org/10.1051/jphyscol:1976410

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VANADIUM-VANADIUM BONDS IN THE Ti_1-xV_xO₂ SYSTEM p. C4-69

T. HÖRLIN, T. NIKLEWSKI and M . NYGREN

DOI: https://doi.org/10.1051/jphyscol:1976411

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INDUCTION DE LA TRANSITION ISOLANT/MÉTAL DE VO₂ PAR SUBSTITUTION D'ESPÈCES CHIMISORBÉES POUR T << Tc p. C4-75

A. CHENEVAS-PAULE

DOI: https://doi.org/10.1051/jphyscol:1976412

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TRANSITION MÉTAL-NON MÉTAL DANS LES BRONZES DE VANADIUM Cu_xV₂O₅ p. C4-79

G. VILLENEUVE, H. KESSLER and J.P. CHAMINADE

DOI: https://doi.org/10.1051/jphyscol:1976413

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THE STUDY OF PHASE TRANSITIONS AND THE RESULTING DOMAIN STRUCTURES BY MEANS OF ELECTRON MICROSCOPY AND ELECTRON DIFFRACTION p. C4-83

S. AMELINCKX

DOI: https://doi.org/10.1051/jphyscol:1976414

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ÉTUDE EN MICROSCOPIE ÉLECTRONIQUE DES TRANSITIONS DE PHASE DANS LES OXYDES DE VANADIUM DE COMPOSITION V₂O₃ et (V_1-xCr_x)₂O₃ p. C4-101

R. AYROLES, C. ROUCAU, J.C. LAUNAY and M. POUCHARD

DOI: https://doi.org/10.1051/jphyscol:1976415

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ELECTRON MICROSCOPY STUDY OF TRANSITION METALS DISULFIDES WITH PYRITE STRUCTURE p. C4-105

G. VANDERSCHAEVE and B. ESCAIG

DOI: https://doi.org/10.1051/jphyscol:1976416

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TRANSITION DE PHASE DANS LES COMPOSÉS CuS₂ ET CuSe₂ A STRUCTURE PYRITE p. C4-109

P. PANISSOD, G. KRILL, M.F. LAPIERRE and M. NASSR EDDINE

DOI: https://doi.org/10.1051/jphyscol:1976417

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TRANSITION MÉTAL-SEMICONDUCTEUR DANS LES COMPOSÉS Cr₂S_3-xSe_x ET Cr_2+εSe₃ p. C4-111

D. BABOT, G. PEIX and M. CHEVRETON

DOI: https://doi.org/10.1051/jphyscol:1976418

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THE ELECTRONIC STRUCTURE AND ELECTRON CORRELATION EFFECTS STUDIED BY XPS p. C4-117

G.A. SAWATZKY and E. ANTONIDES

DOI: https://doi.org/10.1051/jphyscol:1976419

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LAYER COMPOUNDS. CHARGE DENSITY WAVES IN TRANSITIONS METAL COMPOUNDS.ELECTRONIC PROPERTIES OF TRANSITION METAL DICHALCOGENIDES : CONNECTION BETWEEN STRUCTURAL INSTABILITIES AND SUPERCONDUCTIVITY p. C4-125

D. JÉROME, C. BERTHIER, P. MOLINIÉ and J. ROUXEL

DOI: https://doi.org/10.1051/jphyscol:1976420

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THEORY OF CHARGE DENSITY WAVES IN THE LAYERED COMPOUNDS p. C4-137

T.M. RICE

DOI: https://doi.org/10.1051/jphyscol:1976421

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CHARGE DENSITY WAVES IN THE LAYERED TRANSITION METAL DICHALCOGENIDES p. C4-139

P.M WILLIAMS, C.B. SCRUBY, W.B. CLARK and G.S. PARRY

DOI: https://doi.org/10.1051/jphyscol:1976422

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CHARGE DENSITY WAVE PHASE TRANSITIONS OBSERVED BY X-RAY PHOTOEMISSION p. C4-151

R.A. POLLAK and H.P. HUGHES

DOI: https://doi.org/10.1051/jphyscol:1976423

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THE EFFECT OF Fe SUBSTITUTION ON THE CHARGE DENSITY WAVE IN VSe₂ p. C4-157

F.J. DI SALVO and J.V. WASZCZAK

DOI: https://doi.org/10.1051/jphyscol:1976424

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INTERACTION QUADRUPOLAIRE NUCLÉAIRE DU TANTALE DANS 1T-TaS₂ p. C4-163

T. BUTZ, A. VASQUEZ and A. LERF

DOI: https://doi.org/10.1051/jphyscol:1976425

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ON THE NATURE OF THE LOW-TEMPERATURE PHASE OF 1T-TaS₂ p. C4-165

E. TOSATTI and P. FAZEKAS

DOI: https://doi.org/10.1051/jphyscol:1976426

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ELECTRICAL AND MAGNETIC PROPERTIES OP VANADIUM SUBSTITUTED NIOBIUM DISELENIDES p. C4-169

M. BAYARD and M.J. SIENKO

DOI: https://doi.org/10.1051/jphyscol:1976427

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INELASTIC NEUTRON SCATTERING FROM THE ISOMORPHOUS LAYERED COMPOUNDS PbI₂ TiSe₂ and TaS₂ p. C4-175

B. DORNER

DOI: https://doi.org/10.1051/jphyscol:1976428

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LIGHT SCATTERING FROM CHARGE-DENSITY WAVES p. C4-177

E.F. STEIGMEIER, D. BAERISWYL, and G. HARBEKE

DOI: https://doi.org/10.1051/jphyscol:1976429

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EFFECT OF PRESSURE AND ELECTRIC FIELD ON CDW INDUCED RESISTIVITY ANOMALIES IN NbSe₃ p. C4-179

P. HAEN, G. WAYSAND, G. BOCH, A. WAINTAL, P. MONCEAU, N.P. ONG and A.M. PORTIS

DOI: https://doi.org/10.1051/jphyscol:1976430

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THEORIES OF CORRELATION AND COLLECTIVE DISTORTION IN NARROW BANDS.DÉGÉNÉRESCENCE ORBITALE ET STRUCTURE MAGNÉTIQUE ET CRISTALLOGRAPHIQUE p. C4-183

M. CYROT and C. LACROIX LYON-CAEN

DOI: https://doi.org/10.1051/jphyscol:1976431

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THE EFFECT OF BAND STRUCTURE AND ELECTRON-ELECTRON INTERACTIONS ON THE METAL-INSULATOR TRANSITIONS IN Ti₂O₃ AND V₂O₃ p. C4-189

J. ASHKENAZI and M. WEGER

DOI: https://doi.org/10.1051/jphyscol:1976432

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ON THE METAL-INSULATOR TRANSITION IN V₂O₃ p. C4-199

C. CASTELLANI, C.R. NATOLI and J. RANNINGER

DOI: https://doi.org/10.1051/jphyscol:1976433

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COMMENTS ON THE ALLOY ANALOGY APPROXIMATION OF THE HUBBARD MODEL p. C4-207

F. BROUERS, F. DUCASTELLE, G. TREGLIA, M. BRAUWERS and J. GINER

DOI: https://doi.org/10.1051/jphyscol:1976434

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ELECTRON CORRELATION EFFECT AT FINITE TEMPERATURE p. C4-213

K.A. CHAO and K.-F. BERGGREN

DOI: https://doi.org/10.1051/jphyscol:1976435

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TEN-FOLD SPIN-ORBITAL DEGENERACY IN THE TRUE d-ELECTRON HUBBARD MODEL OF THE MOTT METAL-INSULATOR TRANSITION : INCLUSION OF CHARGE POLARITY FLUCTUATIONS p. C4-217

E. SIEGEL

DOI: https://doi.org/10.1051/jphyscol:1976436

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THEORY OF THE MOTT INSULATORS NiO AND CoO p. C4-219

B.H. BRANDOW

DOI: https://doi.org/10.1051/jphyscol:1976437

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SPIN POLARONS IN NICKEL SULPHIDE p. C4-221

D.C. LICCIARDELLO, R. DE MARCO and E.N. ECONOMOU

DOI: https://doi.org/10.1051/jphyscol:1976438

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FORMULATIONS FOR THE TREATMENT OF MULTI-BAND NON-SIMPLE LIQUID METALS. APPLICATION TO THE WILSON TYPE METAL-NON METAL TRANSITION p. C4-223

F. MARTINO and F. YONEZAWA

DOI: https://doi.org/10.1051/jphyscol:1976439

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ROLE OF LONG RANGE COULOMB REPULSION IN METAL-INSULATOR TRANSITIONS p. C4-227

T. IZUYAMA

DOI: https://doi.org/10.1051/jphyscol:1976440

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METAL-NON METAL TRANSITIONS IN RARE EARTH COMPOUNDS. EXPERIMENT AND THEORY.VALENCE INSTABILITIES IN RARE EARTH SYSTEMS p. C4-231

D. WOHLLEBEN

DOI: https://doi.org/10.1051/jphyscol:1976441

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DENSITY OF STATES EFFECTS IN ALLOYS OF SmS WITH YS AND SmAs p. C4-241

S. VON MOLNAR, T. PENNEY and F. HOLTZBERG

DOI: https://doi.org/10.1051/jphyscol:1976442

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THE VALENCE INSTABILITY AND ASSOCIATED PHENOMENA in Ce_1-xTh_x p. C4-249

J.M. LAWRENCE and R.D. PARKS

DOI: https://doi.org/10.1051/jphyscol:1976443

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IONIC SIZE EFFECTS IN VALENCE TRANSITIONS p. C4-255

D. SHERRINGTON and P. RISEBOROUGH

DOI: https://doi.org/10.1051/jphyscol:1976444

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A MECHANISM FOR THE METAL INSULATOR TRANSITION AND VARIOUS PROPERTIES IN SAMARIUM COMPOUNDS p. C4-261

T. KASUYA

DOI: https://doi.org/10.1051/jphyscol:1976445

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DEGREE OF VALENCE MIXING IN THE METALLIC PHASE OF SmS AND IN TmSe p. C4-267

B. BATLOGG, A. SCHLEGEL and P. WACHTER

DOI: https://doi.org/10.1051/jphyscol:1976446

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OPTICAL ABSORPTION OF SEMICONDUCTING AND METALLIC SmS AND Sm_1-xLn_xS FILMS p. C4-271

R. SURYANARAYANAN, I.A. SMIRNOV, G. BRUN and S.G. SHUL'MAN

DOI: https://doi.org/10.1051/jphyscol:1976447

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ELECTRONIC CONFIGURATION AND LATTICE COLLAPSE IN Sm COMPOUNDS p. C4-275

T. PENNEY and R. L. MELCHER

DOI: https://doi.org/10.1051/jphyscol:1976448

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THE INFLUENCE OF Sm³⁺ IMPURITIES ON PROPERTIES OF PURE SmS AND ITS ALLOYS WITH LaS p. C4-283

G. CHOUTEAU, O. PENA, F. HOLTZBERG, T. PENNEY, R. TOURNIER and S. VON MOLNAR

DOI: https://doi.org/10.1051/jphyscol:1976449

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ALLOY THEORY OF VALENCE TRANSITION p. C4-289

S.K. GHATAK, M. AVIGNON and K.H. BENNEMANN

DOI: https://doi.org/10.1051/jphyscol:1976450

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THE METAL-INSULATOR TRANSITION IN Eu-RICH EuO p. C4-293

C.E.T. GONÇALVES DA SILVA

DOI: https://doi.org/10.1051/jphyscol:1976451

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PHASE TRANSITION AND MAGNETISM IN Eu₃S₄ p. C4-297

O. MASSENET, J.M. D. COEY and F. HOLTZBERG

DOI: https://doi.org/10.1051/jphyscol:1976452

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IMPURITY BAND CONDUCTION. EXPERIMENT AND THEORYTHE METAL-INSULATOR TRANSITION IN AN IMPURITY BAND p. C4-301

N.F. MOTT

DOI: https://doi.org/10.1051/jphyscol:1976453

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THE METAL-NON METAL TRANSITION IN DOPED SEMICONDUCTORS p. C4-307

W. SASAKI

DOI: https://doi.org/10.1051/jphyscol:1976454

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STUDY OF THE MOTT TRANSITION IN n-TYPE CdS BY SPIN FLIP RAMAN SCATTERING AND SPIN FARADAY ROTATION p. C4-313

S. GESCHWIND, R. ROMESTAIN and G.E. DEVLIN

DOI: https://doi.org/10.1051/jphyscol:1976455

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CRITICAL CONCENTRATION FOR THE METAL-NON METAL TRANSITION IN n-TYPE GERMANIUM AND SILICON p. C4-317

K.F. BERGGREN and B. SERNELIUS

DOI: https://doi.org/10.1051/jphyscol:1976456

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THE INSULATING SIDE OF THE METAL-INSULATOR TRANSITION IN DOPED SEMICONDUCTORS p. C4-323

P. LEROUX HUGON and A. GHAZALI

DOI: https://doi.org/10.1051/jphyscol:1976457

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HOST NUCLEAR RESONANCE IN Ge : As p. C4-329

V.G.I. DESHMUKH and D.P. TUNSTALL

DOI: https://doi.org/10.1051/jphyscol:1976458

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IMPURITY BAND CONDUCTION STUDY BY PIEZORESISTANCE MEASUREMENTS p. C4-333

M. AVEROUS, J. CALAS and C. FAU

DOI: https://doi.org/10.1051/jphyscol:1976459

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NEW ASPECTS OF METAL INSULATOR TRANSITIONS IN n-TYPE SEMICONDUCTORS p. C4-337

A. HOLZ and K.H. BENNEMANN

DOI: https://doi.org/10.1051/jphyscol:1976460

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INTERRELATION OF CORRELATION AND DISORDER. EXPERIMENT AND THEORY.POSSIBLE CONSEQUENCES OF NEGATIVE U CENTERS IN AMORPHOUS MATERIALS p. C4-339

P.W. ANDERSON

DOI: https://doi.org/10.1051/jphyscol:1976461

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THE ANDERSON TRANSITION IN SILICON INVERSION LAYERS p. C4-343

C.J. ADKINS, S. POLLITT and M. PEPPER

DOI: https://doi.org/10.1051/jphyscol:1976462

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LOCALIZATION BY CORRELATION AND BY DISORDER p. C4-349

D.J. THOULESS

DOI: https://doi.org/10.1051/jphyscol:1976463

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ON THE EXISTENCE OF BIPOLARONS IN Ti₄O₇ p. C4-353

B.K. CHAKRAVERTY and C. SCHLENKER

DOI: https://doi.org/10.1051/jphyscol:1976464

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THEORETICAL PERSPECTIVES IN THE INVERSION LAYER p. C4-357

D.C. LICCIARDELLO

DOI: https://doi.org/10.1051/jphyscol:1976465

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CORRÉLATIONS ET DÉSORDRE DANS LE PROBLÈME DU GEL MAGNÉTIQUE DES PORTEURS DANS LES SEMICONDUCTEURS DOPÉS p. C4-359

J. SERRE, A. GHAZALI and P. LEROUX HUGON

DOI: https://doi.org/10.1051/jphyscol:1976466

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