AIP Conference ProceedingsSeries Editor: Hugh C. Wolfe

Number 29

Magnetism and Magnetic Materials—1975(21st Annual Conference—Philadelphia)

Editors

J. J. Becker

General Electric

G. H. Lander

Argonne National Laboratory

J. J. RhyneNational Bureau of Standards

American Institute of PhysicsNew York 1976

TABLE OF CONTENTS

Preface R. L. White, General Chairman xviii

Comments on Units in MagnetismL. H. Bennett, C. H. Page, L. J. Schwartzendruber xix

Section 1 GENERAL INTEREST

NMR in Superfluid ^e 1Alexander L. Fetter

Superstrong Magnetic Fields and Neutron Stars 5Malvin Ruderman ~

Magnetic Coupling Between Liquid He And Electron Spins in Solids 6D. L. Mills, M. T. Beal-Monod

The Physical Basis of Geomagnetism and Geomagnetic Reversals 10Eugene H. Levy

Section 2 TUTORIALS

Growth-Induced Anisotropy 16H. Callen

Tutorial on Magnetic Recording Theory 16J. C. Mallinson

The Application of Josephson Junctions to Computer Storage and Logic Elements and to Magnetic Measurements 17John Clarke

Section 3 BUBBLE DEVICES I

On the Operation of a Pickax Replicate/Transfer Gate 23S. K. Singh, W. C. Hubbell and D. C. Bullock

On Spontaneous Nucleation in Field Accessed Bubble Devices 25M. H. Kryder, C. H. Bajorek, and R. J. Kobliska

Distribution of Normal Component of Magnetization in Elements of T-Type Permalloy Circuits 25Prof. G. S. Krinchik, U. N. Shamatov, E. E. Chepurova

Magnetoresistive Properties of a Chevron Stretcher Detector 26W. C. Hubbell, S. K. Singh and F. G. West

u)- SLco Transition in a Chevron Stretcher Detector 28F. G. West, W. C. Hubbell and S. K. Singh

Permalloy Film for Bubble Detection and Propagation 30S. Sakai, S. Matsuyama and M. Segawa

Device Characterization of a Complete Set of Passive Bubble Logic Functional Elements 32C. T. M. Chang

Corrosion and Magnetoresistance of Permalloy-Rhodium Alloys 34James C. Suits, D. W. Rice

Domain Wall Observation of Permalloy Overlay Bars by Interference Contrast Technique 37Issa Khaiyer, T. H. O'Dell

Analytical Model of a Bubble Switch 38M. S. Cohen, W. J. Hsieh, and G. S. Almasi

Effects of Interfacial Mixing-on the Properties of RF Sputtered NiFe Films 39P. S. Ho, K. Y. Ahn and J. E. Lewis

Temperature Dependence of the Nucleate Generator Used in Bubble Devices 41I. Danylchuk and A. H. Bobeck

Section 4 BUBBLE DEVICES II

A Simplified Fourier Series Method for the Calculation of Magnetostatic Interactions in Bubble Circuits 44D. B. Dove, J. K. Watson, E. Huijer and H. Ma

Operation of a Bubble Memory Chip With a Triangular Drive Field 46S. K. Singh and W. C. Hubbell

Compact Replicate/Transfer Switch for Field Access Bubble Devices 47I. S. Gergis, L. R. Tocci and J. L. Archer

Design of a 3 urn Bubble 80-kbit Memory Chip 48S. Igarashi, K. Igarashi, A. Hirano, S. Orihara, and K. Yamagishi

Data Unreliability in Bubble Memory Devices Caused by Spontaneous Annihilation 50T. T. Chen, L. R. Tocci and J. L. Archer

Review of Bubble Device Modeling 50G. S. Almasi

64K Fast Access Chip Design 51J. E. Ypma, I. S. Gergis and J. L. Archer

Field-Accessed Bubble Lattice Devices 53K. B. Mehta and 0. Voegeli

Fabrication of 2-4 jm Magnetic Bubble Memories With Electron Beam Negative Resist Lithography 56J. N. Sweet, D. H. Schroeder, J. K. Maurin, J. R. Adams

Section 5 BUBBLE TRANSLATION

Translational Velocities and Ballistic Overshoot of Bubbles in Garnet Films 58A. P. Malozemoff, J. C. Slonczewski and J. C. DeLuca

Overshoot in Magnetic Bubble Translation 64G. P. Vella-Coleiro

Bubble Domain Translational Motion in the Presence of an In-Plane Field 65R. M. Josephs and B. F. Stein, -W. R. Bekebrede

The Speed Difference Between an S=0 and an S=l Bubble in the Presence of anIn-Plane Magnetic Field 67

T. Hsu, B. R. Brown and M. D. MontgomeryWall State Stability During Translational Motion 69

B. R. Brown

Bubble Response to Harmonic Gradient Drive 710. Voegeli, C. A. Jones and J. A. Brown

Domain Wall States in Annealed Low Q Garnet Films 72J. L. Su, E. B. Moore, T. L. Hsu, and B. A. Calhoun

Temperature Stability of Bubble Domain Wall States 74T. Obokata, K. Yamaguchi and K. Asama

Dynamic Properties of Magnetic Bubbles in Amorphous GdCoCu Films. 76Robert I. Potter, V. J. Minkiewicz, Kenneth Lee, and P. A. Albert

Section 6 BUBBLE DOMAIN PHYSICS

Stability and Dynamics of Microwave Generated Ring Domains 78H. Dotsch

The Spin Wave Spectrum of Very Hard Magnetic Bubbles 84A. A. Thiele

Bubble Lattice and Spider-Web-Like Domain Pattern in MnBi Platelet 84Tetsuzo Kusuda, Shigeo Honda and Tadayoshi Ideshita

Initial Rapid Domain Wall Motion in Magnetic Bubble Garnet Materials 85G. J. Zimmer, L. Gal, F. B, Humphrey

High-Speed Wall Motion in Bubble Films With In-Plane Anisotropy 87Ernst Schlomann

Wall Structure of Cylindrically Symmetric Magnetic Domains 89E. Delia Torre, C. Hegedus and G. Kadar

Section 7 BUBBLE MATERIALS

High Speed Bubble Garnets Based on Large Gyromagnetic Ratios (High g) 91R. C. LeCraw, S. L. Blank, G. P. Vella-Coleiro and R. D. Pierce

Study of Defects in Reduced LPE Bubble Garnet Films 95R. C. LeCraw, E. M. Gyorgy and R. Wolfe

Magnetic Properties of Rare Earth (Gd, Dy, Ho, Er)-Cobalt Amorphous Films 97H. Jouve, J. P. Rebouillat, R. Meyer

The Static and Dynamic Properties of Magnetic Bubble Domains in Sm, Ca, Ge-Substituted Yttrium Iron Garnet Films 99

P. F. Tumelty, R. Singh, and M. A. GilleoGermanium-Substituted Bubble Domain Garnet Films For Use Over an Extended

Temperature Range and at a High Data Rate 101D. M. Heinz, R. G. Warren and M. T. Elliott

Reproducible Growth and Bubble Properties of Rare-Earth-Substituted YCaGeIG Films 103T. Obokata, H. Tominaga, T. Mori and H. Inoue

(LuSm),Fer Ga 0, - Garnet Films for Small Bubble Diameters 105s s-x x

T. Carlo, D. C. Bullock, R. E. Johnson and S. G. Parker

Magnetic Properties of Sputter Deposited GdCoCu Amorphous Bubble Fitos 107V. J. Minkiewicz, P. A. Albert, Robert I. Potter and C. R. Guarnieri

Lattice Mismatch Between Pb-Substituted EuIG LPE Films and NdGG Substrates 109T. S. Plaskett, E. Klokholm and D. C. Cronemeyer

Section 8 ANISOTROPY AND MAGNETOSTRICTION

Variations of Magnetic Anisotropy Within Epitaxial Films of Y_2 g^La^ ^gFe^ 25—12Obtained From Spin Wave Resonance Ill

B. Hoekstra and J. M. Robertson, G. BartelsThe Temperature Dependence of the Uniaxial Anisotropy of Gd^ Co MoAmorphous Alloy Films on Glass Substrates ^ y 113

P. Chaudhari and D. C. CronemeyerGrowth-Induced Anisotropy in Yttrium Iron Garnet Films Grown by Liquid Phase Epitaxy 115

M. T. Elliott and H. L. GlassEvidence for Non-Cubic Magnetostriction in Bubble Garnets 116

M. H. Yang and M. W. Muller

Reduction of the Apparent Anisotropy of Bubble Garnet Films Under AluminumMetallization 117

R. Wolfe and W. A. JohnsonEffects of Ion Implantation on Amorphous Gd-Co 119

E. L. Venturini, P. M. Richards, J. A. Bordersand E. P. EerNisse

Magnetic Anisotropy of Ho^+in Holmium-Aluminium-Garnet 121T. Egami and P. J. Flanders, E. M. Gyorgy and L. G. Van Uitert

Section 9 AMORPHOUS AND DISORDERED MAGNETISM I

The Weak Ferromagnetic Properties of Disordered-Concentrated Transition Metal Alloys 123J. Beille, D. Bloch and J. Voiron

Exchange Coupling in Amorphous Rare Earth-Iron Alloys 130Neil Heiman, Kenneth Lee and Robert I. Potter

Spin Waves in a Model for an Amorphous Ferromagnet 136R. Alben

Spin Excitations in Random Antiferromagnets 141Scott Kirkpatrick

Magnetic Excitations in Amorphous Metallic Ferromagnets 146J. D.Axe

Section 10 AMORPHOUS AND DISORDERED MAGNETISM II

Perpendicular Anisotropy of Amorphous, Electrodeposited Cobalt-Phosphorus Alloy Films 147G. C. Chi and G. S. Cargill III

Comment on the Spinwave Spectrum of Co^P Comparison With a Continuum Theory ofAmorphous Ferromagnetism 149

A. M. de GraafEffective Medium Approximation for Ferromagnetic Spin Waves in Amorphous Systems and Alloys 150

L. M. Roth

Bethe-Peierls-Weiss Approximation in Disordered Ferromagnets 152K. Moorjani and S. K. Ghatak

Spontaneous Magnetization of Amorphous Ferromagnets with Anisotropy 154J. D. Patterson and R.C. Weger

A Phase Diagram for Amorphous Magnetic Alloys 156R. Harris and D. Zobin

_+Mossbauer Resonance of FE2+ and FE Cations in Silicate Glasses 158

R. A. LevyCorrelation Function and Susceptibility of Site and Bond Random Heisenberg Paramagnet 159

Kazuko Kawasaki, Raza A. Tahir-Kheli

Modeling Slater-Pauling Curves 161R. C. O'Handley and D. S. Boudreaux

Magnetic Properties of Amorphous Fe-Ge Films 162G. Suran, H. Daver and J. C. Bruyere

Negative Magnetoresistance in Uniaxial and Amorphous Ferromagnets 165L. Berger

The Magnetic Properties of 3d Impurities in Amorphous Cu-Zr Alloys 167T. Mizoguchi and T. Kudo

A Calorimetric Study of MnO-Al-O^-SiO? Glasses 169R.W. Kline and A. MT de Graaf

,L. E. Wenger and P. H. Keesom

Spinwave Dispersion and Temperature Dependence of Magnetization in anAmorphous Co-P Alloy 172

James R. McColl and D*. Murphy , G. S. Cargill III and T. Mitzoguchi,

Section 11 RARE EARTH TRANSITION METALS

XPS Studies of Co-Sputtered Gd-Fe Alloys 174G. Guntherodt and N. J. Shevchik

Magnetic Resonances in a-TbFe?, a-GdFe? and a-YFe? 176S. M. Bhagat and D7 K. Paul

FMR in Some Amorphous RE - 3-d Transition Metal Films 178P. Lubitz, J. Schelleng, C. Vittoria, Kenneth Lee

Net Anisotropy and Ferromagnetic Resonance Frequency of an Amorphous Ferromagnet 180Peter M. Richards

Curie Temperatures of Amorphous RFe2 Alloys 182J. J. Rhyne

Pressure Dependence of Magnetic Properties of Amorphous RE - TM Thin Films 184J.W.M. Biesterbos, M. Brouha and A. G. Dirks

Magnetic Properties of Bulk Amorphous Tb Fe,_x

186H. A. Alperin, J, R. Cullen, L E." Clark

The Structure of Amorphous Gd-Co Alloy Films 188C. N. J. Wagner, N. Heiman, T. C. Huang, A. OntonW. Parrish

The Effect of Co on the Anisotropy of Amorphous Gd-Fe Films 190R. C. Taylor

Room Temperature Composition Dependence of the Anisotropy Energy ofHo Tb, Fe? Single Crystals 191

xC. M. Williams, N. C. Koon, and J. B. Milstein

Rhombohedral Distortion in Highly Magnetostrictive Laves Phase Compounds 192A. E. Clark and J. R. Cullen, 0. D. McMasters, and

,,#.

E. R. CallenMossbaur and Magnetization Study of Tb(Fe, Al ) ? 194

R. S. Preston, S. P. Tanejai_x x

S. M. Drensky, A. E. Dwight, C. W. Kimball and L. R. SillMagnetic Properties of Gd, Fe Films 196

C. Vittoria, PlxLuxitz and J. Schelleng

Section 12 TRANSITION METAL GLASSES

Amorphous Alloys as Soft Magnetic Materials II 198E. M. Gyorgy, H. J. Leamy, R. C. Sherwood, § H. S. Chen

Domain Observations in an Amorphous Iron-Nickel Alloy 204

Joseph J. BeckerMagnetic Core Loss and Internal Stress in Metallic Glasses 206

R. C. O'HandleyMagnetostriction as a Function of Glass Formers in Amorphous Alloys ofFe-P-B-Al 208

H. A. Brooks and H. S. Chen

Kinetics of Reorientation of Magnetically Induced Anisotropy in Amorphous

Ni40Fe40P14B6 209F. E. Luborsky

The Effect of Heat Treatment on the Curie Temperature of a Metallic Glass., 211H. J. Leamy, E. M. Gyorgy, R. C. Sherwood, T. Wakiyama, $ H. S. Chen

Magnetic Properties of Amorphous Fe^gNi^QP-^Bg 214C. L. Chien, R. Hasegawa

Magnetization, Anisotropy and Coercivity of a Glassy Metallic Alloy 216R. Hasegawa

Annealing Effects in Amorphous Magnetic Alloys 218C. D. Graham, Jr. T. Egami, Robert S. Williams and Y. Takei

Temperature Dependence of "Magnetic Anisotropy" in Amorphous Alloys 220T. Egami and P. J. Flanders

Domain Structure During Magnetization of an Annealed and ElasticallyStrained Amorphous Ni-Fe-P-B Alloy 222

J. W. Shilling

Section 13 SPIN GLASS ALLOYS

Recent Developments in the Theory of Spin Glasses 224D. Sherrington

Onset of Magnetic Order in V-Fe and Cu-NL 228Helmut Claus

lX* Spin Precession Experiments in Spin Glasses 229'u A. T. FioryMossbauer and Magnetization Measurements in FeCr Solid Solutions. 232

B. D. Dunlap and A. T. Aldred, R. J. Nemanich and C. W. Kimball

Theory of Systems With Random Bond Ising Interactions in the Paramagnetic Phase 232R. A. Tahir-Kheli and R. J. Elliott

A Calorimetic Investigation of the Spin Glass: CuMn 233L. E. Wenger and P. H. Keesom

Magnetic Ordering of AUq Qg: An Ultrasonic Investigation 235G. F. Hawkins, T. J. Moran, and R. L. Thomas

Mictomagnetism in Fe-Al Alloys 236R. D. Shull, H. Okamoto and Paul A. Beck

Low Temperature Magnetic Properties of the Spin Glass System PtMn 237E. F. Wassermann and J. L. Tholence

The Hydrogenation of PdCr Alloys 239J. A. Mydosh

Mossbauer Measurements in Spin-Glass Alloy (Pdg (Agg ggFeQ gi . 241S. De Benedetti, J. A. Rayne and A. Zangwill, R. A. Levy

Section 14 SPIN EXCITATION IN DISORDERED SYSTEMS

Excitations of Substitutional!/ Disordered Antiferromagnets 243R. A. Cowley

The Coherent Potential Approximation for the Diluted Anisotropic Antiferromagnet 247William K. Holcomb

The Observation of Structure in the Neutron Scattering from Antiferromagnetic

Mn0.32Zn0.68F2 248E. C. Svensson, W. J. L. Buyers and T. M. Holden, D. A. Jones

Calculations of Spin Waves in a Randomly Diluted Two-Dimensional Antiferromagnet 250R. Alben and M. F. Thorpe

Resonant Perturbation of Spin Waves in KMnQ ggMgg q-jF^AND KMn^ g^Zn^ q^F^ 252R. H. March, E. C. Svensson and T. M. Holden, R. StedmanD. A. Jones

Spin Waves in KNin 7rMnn ?rF, 254V. I O j

-

G. J. Coombs and R. A. Cowley, D. A. Jones, G. Parisotand D. Tocchetti

Magnetic Excitations in Antiferromagnetic Ni, Co 0 255V. Wagner, D. Tocchetti and B* HeSinion

Crystal Field in Liquid Cerium and Praseodymium 257A. H. Millhouse and A. Furrer

Section 15 SPIN EXCITATIONS

Ground- and Excited-State Spin Waves in PrA\ ~ 259H. -G. Purwins, W.J.L. Buyers, T. M. Holden and E. C. Svensson

Theory of Singlet-Doublet Excitations in Praseodymium 261P. Bak

A Study of the Frequency Dependent Susceptibility of the Compound,CeAl^, byInelastic Neutron Scattering 263T. Brun and S. Sinha, A. S. Edelstein and R. MajewskiH. R. Child

Structure, Moment, and Magnetic Excitations of the Transparent Ferromagnet Rb2CrCl^ 263M. T. Hutchings, P. Day, M. Fair and A. K. Gregson

Magnetic Excitations in Holmium Phosphide 264A. Furrer, E. Kaldis

Spin-Wave and Critical Scattering of Neutrons From Cobalt Disulfide 266M. Iizumi and J. W. Lynn, A. Ohsawa, H. Ito

Investigation of FeBO, By Brillouin Scattering from Thermal Magnons,. m

268

W. JSntz, J. R. Sandercock and W. WettlingVirtual Spin Waves in Itinerant Ferromagnets Above T 270

M. A. Klenin, J. A. Hertz

Magnon Modes of a Gyrotropic Magnetic Bar 272T. M. Sharon and A. A. MarVdiidin*N"

Magnetic Scattering of Neutrons by a Relativistic Atom in the % Configuration 274C. Stassis and H. W. Deckman

Section 16 SPIN DENSITY

Electron Spin Polarization in Ferromagnetic Metals 276R. Meservey, P. M. Tedrow and D. Parask'evopoulos

Photoelectron-Spin Polarization,-Spin Fluctuation and - ParamagnonInteractions and Energy Spectra in Photoemission from Itinerant,Narrow d-Band Magnetic Metals: Inclusion of Ten-Fold, Spin-Orbital, d-Electron Degeneracy 281

Edward SiegelA Localized Moment Model for Paramagnetism in NiJU. 282

A. Parthasarathi and Paul A. Beck

Magnetic Susceptibility of Ni-Afl, Alloys at High Temperatures 284

Sigurds Arajs and J. R. KellyMagnetic Moment Distribution in NiJU 285

G. P. Felcher, J.^S. KouvelV XV eV Mille'rDetection of Local Moments in the 3d Series by Electron Energy-Loss Spectra of 3p-*3d Transitions, 286

Mary Beth Stearns and Lee A. FeldkampThermal Expansion, Volume Magnetostriction and Shift of the Curie Temperature With" Pressureof NiJU and Ni-Pt Alloys 288

J. J. M. Franse, T. F. M. Kortekaas and N. Buis

Hyperfine Fields at Interstitial Postive Muon Sites in Ferromagnetic Materials 290

P. Jena

Moment Disturbances in Ni-Cu Alloys. 292R. A. Medina and J. W. Cable

Section 17 KONDO PROBLEMS REVISITED

Temperature (Field) Dependent Phase Shifts : A Useful Tool in the Approach to the Kondo Problemt

29463

_

J. Souletie'""

Cu NMR Satellite Studies of the Electron Spin Polarization and Impurity Susceptibility in Cu-Fe 300H. Alloul

—

NMR Studies of the Kondo Effect Revisited 306CP. Slichter

Susceptibility of the Anderson and Kondo Models of Dilute Magnetic Alloys 310H. R. Krishna-murthy

Section 18 NARROW BAND MAGNETISM

Magnetic Studies of Actinides--Evidence for Localized 5f Electrons 311G. H. Lander

Bulk Properties of UIr? and Ulr,. 317M. B. Brodsky, k. J. Trainor, A. J. Arko and H. V. Culbert

Application of Standard-Basis Operators to the Theory of Electronic and

Magnetic Properties of Actinide Compounds 319J. M. Robinson

Magnetization Fluctuation Renormalization of Single Particle and Magnon Energies 321Victor Korenman, Joanne L. Murray and R. E. Prange

The Importance of Vertex Corrections in Paramagnon Theories 323K. Levin and J. Hertz, M. T. Beal-Monod

Superconducting and Magnetic Properties of V, Fe Si AND V., Mn Si 325R. L. Bergner, V. U. S. Rao and §. G. SanRa?

x

Canonical Band Theory of the Volume and Structure Dependence of the Iron Magnetic Moment 327J. Madsen, 0. K. Andersen, U. K. Poulsen and 0. Jepsen

Magnetic Moments of Ferromagnetic Gadolinium Alloys 329H. W. White, B. J. Beaudry, P. Burgardt, S. Legvold and B. N. Harmon

The Analysis of Magnetic Neutron Scattering Data 331G. Felcher, J. W. Garland, J. W. Cable and R. Medina

Crystal Field Effects on Thermal Expansion and Magnetostriction of TmSb. 333H. R. Ott, B. Luthi

Magnetic Properties of ScFe~ 334S. G. Sankar and W. E. Wallace

Section 19 DILUTE ALLOYS I

Determination of the Energy Level Parameters and Crystal Field Splitting for Fe in Cu 335J. B. Boyce, CP. Slichter

Effects of a Non Magnetic Impurity on the Appearance of Magnetism in a Kondo System 337R. Guerinot and R. Tournier

The Kondo Effect in the Anderson Model 339

Tadashi Arai

The Possibility of Interconfiguration Fluctuations in Dilute Eu Alloys 341Ron G. Pirich and C. R. Burr

5«Hyperfine Studies of a Very Dilute Alloy by Nuclear Orientation: Pd mi 342

J. 0. Thomson and J. R. ThompsonNMR Spin Lattice Relaxation Rate in NiA Due to 3-d Impurities 344

J. R. Wilhite and J. 0. Brittain, L. B. WelshElectrical Resistivity and Magnetic Susceptibility of Pt, „Co 346

K. V. Rao, 0. Rapp and Ch. Johannesson, Jv I. Budnick and T. J. BurchV. Cannella

Investigation of Conduction Electron Polarization Effects in Fe^Si Based Ternary Systems 348K. Raj, V. Niculescu and J. I. Budnick, S. Skalski

N.M.R. Shift and Relaxation Studies of Mn Impurities in Liquid Bismuth 350R. Dupree and R. E. Walstedt

Hyperfine Fields in the Absence of Magnetic Order in Dy-Sc Alloys 352R. Abbundi and R. Segnan, J. J. Rhyne and D. M. Sweger

Section 20 DILUTE ALLOYS II

Nuclear Resonance of Ytterbium Local Moments in Gold 354

D. M. Follstaedt, W. J. Meyer, D. C Barham and A. NarathObservation of an Electro-Nuclear Singlet Ground-State in Au l^lyb 356

G. Frossati, J. M. Mignot, D. Thoulouze and R. Tournier

Kondo Resistivity in the Singlet Ground State System La^Pr^Sn-j 358A. I. Abou-Aly, S. Bakanowski,N. F. Berk, J. E. Crow, and T. Mihalisin

Magnetization of Dilute Au-Fe Alloys at Very Low Temperatures 360T. Steelhammer and 0. G. Symko

Evidence of Crystal Field and Orbital Energy Level Splittings for Transitional Impurities in Metals 362John Gardner

Thermopower of Nearly-Magnetic Alloys and Metals 364A. B. Kaiser

Kondo Effect in Y-Rich Alloys Containing A Ce Impurity 366

T. S. Petersen, S. Legvold and P. BurgardtThe Effect of Interconfigurational Excitation Energies Lying Close

to the Fermi Energy in the Dilute Magnetic Alloy367

Samuel P. Bowen

Magnetic Field Dependence of the Specific Heat of PdDy Alloys368

H. A. Zweers, G. J. Nieuwenhuys, H. W. M. van der Linden

J. A. MydoshModel for Magnetic Properties of Pd(Gd) Alloys

370

H. C. Praddaude, S. Foner, E. J. McNiff, Jr. R. P. Guertin

Section 21 JAHN-TELLER AND MAGNETITE

Neutron Scattering Investigation of the Central Mode and Acoustic Phonon

Anomaly Arising From the Jahn-Teller Phase Transition in TbVCL372

M. T. Hutchings, R. Scherm, S. R. P. Smith

Magnetoelastic Interactions in UCL379

J. Faber, Jr. G. H. Lander, B. R. CooperCharge Ordering in Fe,0.

J. B. Sokoloff381

Current Understanding of Low Temperature Phase Transition of Magnetite,

Particularly in Relation to the Behavior of Magnetocrystalline Anisotropy 382Soshin Chikazumi

Induced Moment Magnetism in TbAsO.: Constant Coupling Approximation 387J. W. McPherson and Yung-Li Wang

Linear and Bilinear Magnetoelectric Effects in Magnetically Biased Magnetite 387G. T. Rado and J. M. Ferrari

Mossbauer, NMR, and X-Ray Studies and a New Ordering Model of Fe^O^ 388S. Iida, K. Mizushima, M. Mizoguchi, J. Mada,S. Umemura, K. Nakao and J. Yoshida

Crystal Chemistry and Electron Localization in Sn-Doped Fe^O^ 390B. J. Evans, Lu San Pan and R. H. Vogel

Section 22 CHALCOGENIDES

Soft Bulk Modulus at the Configurational Phase Transition in Sm, Y S 392T. Penney, R. L. Melcher, F. Holtzberg

x

G. Guntherodt

Low Temperature Specific Heat of Sm., Y S 394S. von Molnar and F.xH§ltzberg

Mixed Configuration Ground State in Sm Compounds 396J. W. Schweitzer

Thermoelectric Properties of EuSe 398J. Heleskivi, T. Shiosaki

Low Spin High Spin Transition of Iron in lT-Fe Ta, S?; 0

Electronic Moments Induced by Nuclear Moments in Van Vleck Compounds 422J. L. Genicon and R. Tournier

Rotational Invariance and the Coupling of Acoustic Waves to Zero Frequency PseudospinModes in Paramagnets 424

P. A. Fedders, R. L. MelcherPredicted New Components of Magnetic Force on a Ferromagnet Undergoing Resonance 426

F. R. MorgenthalerExcited State EPR and Exchange Interactions in Paramagnetic Singlet-Ground-State Systems 428

_+B. R. Cooper, C. Y. Huang, and K. Sugawara

Gd EPR as a Probe of the Antiferromagnetic Critical Behavior in Rare Earth Systems WithSubstantial Crystal-Field Splittings 428

K. Sugawara, C. Y. Huang, and B. R. Cooper

Section 24 PHASE TRANSITIONS

Equation of State For the Ce, Th Valence Transition 429

J. M. Lawrence, M. C. Croft, J. M. Markovics, and R. D. Parks

Spin Glass Properties and Metal-Insulator Transitions in (Ti-^ Vx)2 0$ 431

J. Dumas, C. Schlenker, J. L. Tholence, R. Tournier

Paramagnetic-Antiferromagnetic Transition in Hubbard Model 433

J. Florencio Jr. and K. A. Chao

Magnetostriction Near the Neel Temperature of MnF2 435Y. Shapira and R. D. Yacovitch

Magnetization and Neutron Diffraction Studies on Mn~Si 437J. I. Budnick, V. Niculescu, W. A. Hines, A. H. Menotti, K. Raj and T. J. BurchS. J. Pickart ,

Ferromagnetic Ordering in Solid He Due to Ground State Vacancies 439A. Widom and J. B. Sokoloff

Magnetostriction in MnF2 Above and Below TN 440J. Matolyak, A. S. PavloVic and M. S. Seehra

Theory of Random Anisotropic Magngtic Alloys 441Per-Anker Lindgard

Latent Heat at the Spin-Reorientation of the Weak Ferromagnet Fe^BOg 443C. Voigt and N. Manderla

MnWO^, Calorimetric Study of the Bifurcated Antiferromagnetic Anomaly 445Christopher P. Landee and Edgar F. Westrum, Jr.

Magneto-Caloric Effect Studies on Single Crystal MnCl2*4H20 With Magnetic Fields Applied Along thec Crystallographic Axis 447

R. A. Biitera, T. A. Reichert and E. J. SchillerNeutron Scattering Measurements of the

Section 26 CRITICAL PHENOMENA.

First-Order Transitions, Symmetry, and the -Expansion.. 474D. Mukamel, S. Krinsky, and P. Bak

Thermodynamic Behavior Near Valence Instabilities 479R. D. Parks and J. M. Lawrence

Critical Scattering Scaling Functions and the Measurement of n 483

Craig A. Tracy ^

Spin Dynamics and Critical Fluctuations of a Site-Random, Two-Dimensional Antiferromagnet: Rb^Q 5NiQ 5F4 487J. Als-Nielsen, R. J. Birgeneau, G. Shirane

Section 27 CRITICAL PHENOMENA, RANDOM AND UNIFORM SYSTEMS

Randomly Dilute Two Dimensional Ising Models 488R. Fisch and A. B. Harris

Critical Effects of Regularly Spaced Point Defects 490M. E. Fisher and Helen Au-Yang

Ising Ferromagnet With Quenched Impurities 490E. Stoll, T. Schneider

Critical Exponents Associated With Isolated Impurities in Ferromagnets 491T. K. Bergstresser

Effect of Impurities on Hyperfine Critical Exponents , 493R. M. Suter and C. Hohenemser

Critical Behavior of the Band Gap in Ferromagnetic Semiconductors 495J. S. Helman and I. Balberg and S. Alexander

New Mossbauer Study of the Curie Point in Iron 497M. A. Kobeissi and C. Hohenemser

Absolute Measurement of the Critical Scattering Cross Section in Cobalt 499C. J. Glinka and V. J. Minkiewicz and L. Passell

Critical Behavior of Dilute Magnets With Site-Randomness 501Tatuo Kawasaki

Series Studies of Critical Exponents in Continuous Dimensions 502

J. P. Van Dyke and William J. Camp

Section 28 LINEAR CHAIN SYSTEMS

Spin-Peierls Transitions in Heisenberg Antiferromagnetic Linear Chain Systems 504J. W. Bray, H. R. Hart, Jr., L. V. Interrante, I. S. Jacobs, J. S. KasperG. D. Watkins, and S. H. Wee, and J. C. Bonner

Magnetic Ordering in NiZrF6.6H20 505M. Karnezos, D. Meier and S. A. Friedberg

Ultrasonic Attenuation in Linear Antiferromagnet CsNiCl, 505D. P. Almond and J. A. Rayne

Poly (Metal Phosphinates): Antiferromagnetism in Disordered Linear Polymers 506J. C. Scott, T. S. Wei, A. F. Garito, and A. J. Heeger,H. D. Gillman and Piero Nannelli

Metamagnetism in Single Crystal y -Co (Pyridine) ?C1? • 510S. Foner and R. B. Frankel, W.Ttf. Reiff and H. Wong, G. J. Long

Theory of Two Spin Infrared Absorption in One Dimensional Heisenberg Antiferromagnets 511M. Drawid and J. W. Halley

Quantitative Studies of Magnetic Cooling on a Magnetic System Which Obeys the Third Law 512J. D. Johnson, J. C. Bonner

Section 29 TRANSPORT AND ELECTRONIC PROPERTIES

The Extraordinary Hall Effect: Intuitive Theory and Experimental Verification 514J.-N. Chazalviel and I. Solomon

Hall Effect and Transport in 3d Ferromagnetic Metals 520R. V. Coleman

Anisotropic Magnetoresistance in Ferromagnetic 3d Ternary Alloys 526T. R. McGuire, R. D. Hempstead and S. Krongelb

Magneto-Resistivity of Beta-Cerium 527P. Burgardt, S. Legvold, J. H. Queen and K. A. Gschneidner, Jr.

Pressure Dependence of the Electronic Structure of Nickel 529J. R. Anderson and Peter Heimann, J. E. Schirber, D. R. Stone

Elastic Anisotropy in the TSDW Phase of Chromium «530M. 0. Steinitz, D. J. Stanley and E. Fawcett

Electronic Structure and Magnetic Properties of Scandium 531

Shashikala G. Das

Magnetic and Electric Properties of MnSb 532Tu Chen, W. Stutius, and J. W. Allen, G. R. Stewart,

Crystal Electric Field Effects on the Transport Properties of Intermetallic Rare Earth Systems -534Y. H. Wong and B. Luthi

Section 30 SURFACE PROPERTIES OF MAGNETIC MATERIALS

Magnetic Characterization of Semi-Amorphous Nickel Catalysts and Their Methanation Activity- 536L. N. Mulay, R. C. Everson, 0. P. Mahajan, and P. L. Walker, Jr.

Temperature Studies of the Hyperfine Magnetic Field in Thin Iron Films 538Robert J. Semper, C. L. Chien and J. C. Walker

Local Spin Fluctuations in Chemisorption 540J. Handler and J. A. Hertz

Surface Acoustic Attenuation Due to Surface Spin Wave in Ferro- and Antiferromagnets 542S. Maekawa, M. Tachiki

Magnetic Behavior of Organic Coated Ferrites 543

A. E. Berkowitz, J. A. Lahut, Lionel M. Levinson, I. S. Jacobs,D. W. Forester

Spin Relaxation of Conduction Electrons Due to Surface Paramagnetic Centers 544Adan R. Rodriquez and J. S. Helman

Anomalous Superparamagnetism 544

Itamar Eisenstein and Amikam Aharoni

Section 31 DOMAIN WALLS; STRUCTURE AND MOTION

The Coercive Force and the Theory of Ferromagnetic Domain Wall Pinning 545

D. I. Paul

On the Quantum Theory of Bloch Walls 550R. Schilling

Theoretical Motion of a Realistic Domain Wall 551

Amikam Aharoni

Magnetic Domain Wall Bowing in a Perfect Metallic Crystal 551W. J. Carr, Jr.

Variation of the Ferromagnetic Domain Wall Width as a Function of the Magnetic Energy Constants 551H. Mohtadi and D. I. Paul

Bloch, Neel and Head-To-Head Domain Wall Mobilities in YFeO, 552

Ching H. Tsang and Robert L. White, and*Tlobert M. White

Section 32 SOFT MATERIALS; METALLURGICAL BEHAVIOR

Magnetic Properties of (110)[001] Oriented Low Alloy Iron 554

D. R. Thornburg, K. Foster, and G. C. RauchEffect of Chromium on the Magnetic Properties and Texture of Non-Oriented Steel 556

P. K. Rastogi.Elementary Coupling Energy of C02+ Ion to the Lattice in Mixed Nickel-Zinc Ferrites Doped with Co 558

A. Marais, T. Merceron, M. Porte

The Induced Magnetic Anisotropy in Double HCP Co-Fe Alloys 560

T. Wakiyama, G. Y. Chin, M. Robbins, R. C. Sherwood and J. E. BernardiniHot Pressed Ceramic Ferrites: Magnetic-Mechanical-Microstructural Interactions 561

L. S. Brissette, E. A. Grossi, J. M. Titlar, K. Cherven, R. M. SpriggsThe Invar Characteristics on Co-Fe Alloys 562

M. Takahashi, F. Ono and K. Takakura

The Stability of Austenitic Stainless Steels Under Deformation 564

A. Riley, J. G. Booth and R. S. TebbleA Study on the Occurence of High Permeability in Grain Oriented Silicon Steel

- HI-B 566

K. Takashima, T. Sato, and F. Matsumoto

Dependence of Losses on Stress and Orientation of Oriented Silicon-Iron 568

W. M. Swift

Stress Fields and Strains Energies Associated With Closure Domains 570

J. N. Pryor and J. J. Kramer

Observation of Domain Structure in Soft-Magnetic Materials by Means of High Voltage ScanningElectron Microscope 572

Y. Yamamota and K. TsunoEffect of Insulating Coating on Domain Structure in Grain Oriented 3% Si-Fe Sheet As ObservedWith a High Voltage Scanning Electron Microscope 574

T. Irie and B. Fukuda

Section 33 MATERIALS: PREPARATION AND PROPERTIES

Magnetic Properties of SnCo^O. Spinel 576Erika Hermon, D. J. Simkin and R. J. Haddad, W. B. Muir

Epitaxial NiFe?0. Films Deposited on Nd.,Gar0,7 Substrate 576* 4P. Gibart and G. Suran5

LC

Lead Free Bismuth Substituted Garnet Films by L.P.E 580T. R. Johansen, F. G. Hewitt, E. J. Torok and D. L. Fleming

Oxygen Stabilized Rare-Earth Iron Intermetallic Compounds 583M. P. Dariel, M. Malekzadeh and M. R. Pickus

Magnetic Behavior of Some Rare Earth Germanides of the Type RFe2Ge2 585

7 7S. K. Malik, S. G. Sankar, and V. U. S. Rao; R. Obermyer

Co -Co Interaction in CoNB206 587I. Yaeger ana A. H. Morrish, B. M. Wanklyn

Influence of Antiferromagnetic T-Domains on Transport in Pure NiO 587J. E. Keem, L. L. VanZandt, J. M. Honig

New Magnetic Compounds With Heusler and Heusler-Related Structures 587James C. Suits

High Field Magnetization Studies on Y, Th Fe, Compounds 588K.S.V.L. Narasimhaii, R. AT Butera and C. J. Kunesh

Magnetization of Single Crystal (Ti,V)20^ 590C. F. Eagen, N. C. KQon and L. L. VanZandt

Single Crystal Growth of HoFe? and ErFe? 592J. B. Milstein

Magnetic Properties of RMn?X7 Compounds (R=Rare Earth, Y OR Th and X=Ge, Si) 594K. S. V. L. Narasimhan, V. U. S. Rao and W. E. Wallace and I. Pop

Magnetoelastic Contributions to the Elastic Constants of Holmium, Dysprosium, and Terbium 596S. Gama, B. M. Kale, M. S. Torikachvili, 0. Ferreira, M. ArellanoD. G. Pinatti, and P. L. Donoho

Magnetoplastic Deformation of Dy Crystals 598H. H. Liebermann and C. D. Graham, Jr.

Section 34 HARD MAGNETIC MATERIALS

Precipitation Hardened RE-Co-Magnets 600A. Menth

Magnetic Properties of Sintered SnuTM, -Magnets 603H. Nagel

Basal Plane Anisotropy in the Pseudobinary Compound Yn orNdn 7rCOr 605A. E. Miller and T. D'Silva and J. P. HeinricH

Behavior of a Domain Wall in Dy7Co, 7 605C. W. Allen; A; E. Miller and B. D. Cullity

Magnetocrystalline Anisotropy of Compounds With Compositions Near Gd^Co,7 606T. Katayama, Y. Koizumi, K. Kawanishi, T. Shibata, and T. Tsushima

High Field Magnetic Measurements on Sintered SmCor Permanent Magnets „ 608Stanley R. Trout and C. D. Graham, Jr.

Upon Influencing the Magnetocrystalline Anisotropy of RE2TM,7 Compounds 610R. S. Perkins, S. Strassler and A. Mentfi

Orinetation and Remanent Magnetization of SmCOr Magnets 612W. M. Swift, W. T. Reynolds, R. M. Schrecengost and D. V. Ratnam

A Metallographic Method for the Determination of Crystal Alignment in Co-R Permanent Magnets ...614D. L. Martin

Spin Reorientation in NdCo,- Single Crystals 616M. Ohkoshi, H. Kobayashi, T. Katayama, M. Hirano and T. Tsushima

Narrow Bloch Walls in RCo^-Type Rare Earth Cobalt Compounds 618K.H.J. Buschow and M. Brouha

Fe-Cr-Co Ductile Magnet With (BH) max = 8 MGOe 620H. Kaneko, M. Homma and M. Okada, S. Nakamura, and N. Ikuta

Section 35 DEVICES AND APPLICATIONS

Magnetic Ink Jet 622G. J. Fan

Crosstie Memory Simplified by the Use of Serrated Strips 624L. J. Schwee, H. R. Irons, and W. E. Anderson

Bubbles As Latrix Elements 626

M. M. Hanson, F. G. Hewitt, A. D. Kaske, R. E. Lund and E. J. Torok

Magnetic Gas Sensor 628Martin Rayl, Peter J. Wojtowicz and Harold D. Hanson

Magnetic Orientation of Disc Media 630Ronald D. Weiss

A Bubble Domain Memory Cell 632P. J. Hayes, I. J. Walker

Preparation of Water Based Magnetic Ink 632Z. Kovac and C. Sambucetti

High Field-High Gradient Magnetic Separation: A Review 633F. E. Luborsky

A Versatile Magnetostrictive Displacement Transducer 639Ivan J. Garshelis

HGMS: Mathematical Modeling of Commerical Practice 641R. R. Oder and C. R. Price

Microwave Losses in GGG 643J. D. Adam, J. H. Collins, and D. B. Cruikshank

Synthesized Linearly Dispersive Microwave YIG Delay Line With Wide Instantaneous Bandwidth. 645A. Platzker and F. R. Morgenthaler

Section 36 MAGNETO-OPTICS, PHASE DIAGRAMS, PHOTOEMISSION

Magnetooptical Studies on Spin-Reorientation in Rare Earth Orthoferrites 647N. Koshizuka, K. Hayashi, M. Suzuki and T. Tsushima

Anisotropic Linear Ma gnetic Birefringence and Modulation of Light in Some Magnetic Compounds 649J. P. Jamet and Tran Khanh Vien

Light Scattering in FeC^ at the Metamagnetic Transition 651E. Yi Chen, J. F. Dillon, Jr. and H. J. Guggenheim, Richard Alben

Faraday Rotation and Optical Absorption in FeB^ 652J. A. Griffin and J. D. Litster

Optical Studies of the Magnetic Phase Diagram of MnCl? and MnBr9 654M. Regis, Y. Farge, B. S..H7 Royce

L

Analysis of the Morin Phase Transition in Hematite From the Linear Magnetic Birefringence 656H. Le Gall, E. G. Rudashewsky, C. Leycuras and D. Minella

Studies of Magnetooptical Effects in Garnets Thin Film Waveguides. 658G. Hepner, J. P. Castera and B. Desormiere

Photoinduced Magnetic Surface Anisotropy Field in YIG Thin Films 660T. S. Stakelon, P. Yen, H. Puszkarski, P. E. Wigen

Multiphonon Inelastic Light Scattering: A Result of Hot Recombination 662J. Vitins and P. Wachter

Electronic Structure of the Ionic Ferromagnet and Catalyst La,_ MnO? By Spin Polarized, UV and X-RayPhotoemission Spectroscopy ? 664

S. F. Alvarado, W. Eib, P. Munz and H. C. Siegmann, M. Campagnaand J. P. Remeike

Measurement of the Domain Widths of a Magnetic Thin Film in an In-Plane Field 666S. Kern, P. V. Cooper, and D. J. Craik

UV Photoemission Studies of Yttrium Iron Garnet 668

P. K. Larsen and R. Metselaar,B. Feuerbacher

Section 37 RESONANCES IN FILMS AND MAGNETIC MATERIALS

Determination of Complex Magnetic Surface Energies From SWR Spectra 670P. E. Wigen, T. S. Stakelon, H. Puszkarski, and P. Yen

Effects of Lead Incorporation on the Ferromagnetic ResonanceLinewidths of Liquid Phase Epitaxial Grown Yttrium Iron Garnet 676

4+-M. T. ElliottMagnetic Anisotropy of lr in NiFe-O, Crystals 678

R. Krishnan

Ferromagnetic Resonance in Permalloy Platelets 680J. H. Liaw and R. C. Barker

Ferromagnetic Resonance in Ni-Co Alloy Platelets at Room Temperature 681C. Y. Wu, H. T. Quach, and A. Yelon

Crystalline Anistropy of Cobalt Ferrite From Observations of Ferromagnetic Resonance 684L. Assadourian and L. Silber

Magnetic Resonance of Gd In LaNir and LaNiq Hydride 686W. M. Walsh, Jr. L. W. Rupp Jr. ., P. H. Schmidt and L. D. Longinotti