AIP Conference ProceedingsSeries Editor: Hugh C. Wolfe

Number 24

netism and Magnetic Materials—1974(20th Annual Conference—San Francisco)

Editors

CD. Graham, Jr.

University of Pennsylvania

G.H. Lander

Argonne National Laboratory

and

J.J. Rhyne

National Bureau of Standards

American Institute of PhysicsNew York 1975

TABLE OF CONTENTS

Section 1. - TUTORIAL SESSION

Magnetic Bubbles--For the Non-Specialist 1F. B, Hagedorn

Impurities and Their Magnetic Moments, or "...Into the Promised Land"..,....,,..,..,...., 3

R. Orbach

Phase Transitions and Critical Phenomena in Magnetism ..10

M. Blume

Section 2. VALENCE, VOLUME AND CRYSTAL FIELD EFFECTS

The Configuration-Based Approach to Magnetic Impurities in Metals 11

L.L. Hirst

Electronic Structure and Lattice Constant of Invar Alloys 16J. Kanamori, Y. Teraoka and T.. Jo

Spectroscopy of InterconfigurationaI Fluctuations in Rare Earth Compounds 22M. Campagna, G.K. Werthelm and E. Bucher

Excited-State Spin Waves, Soft Modes and Crystal Field Effects 27W.J.L. Buyers

Valence Transitions of Sm in Sm1-XR S (R = Y, La, or Gd) , 33Lung-jo Tao

Section 3. RARE EARTH CHALCOGENI PES: MIXED VALENCE AND OTHER EFFECTS

Oj.

Spin Resonance Observation of Sm in Semiconducting SmS , J,kW.M. Walsh, Jr., E. Bucher, L.W. Rupp, Jr. and L.D. Longinotti

Optical Studies of Semiconductor to Metal Transition in Snij Y S 36G. Guntherodt and F. Holtzberg

..qSemiconductor-Metal Transition in SmS - A Sm Mossbauer Study , 38

J.M.D, Coey, S.K. Ghatak and F. HoltzbergLow Temperature Magnetic Phase Transition in TmSe , kO

H. R. Ott, K. Andres and E. Bucher

Magnetoresistance Due to Conduction Band Splitting in Magnetic Semiconductors kl

R.L. Kautz and Y. Shapira

Magnetic Polarization in the Ramirez-Falicov Model of Valency-Change Transitions;

Application to Cerium , ^3P.F. de Chatel and A.J.T. Grimbecg

The Effect of Conductivity on the Eu Hyperfine Interactions in EuTe .kkK. Raj, J.I. Budnick and T.J. Burch

Virtual Bound States and Configurational Mixing in Sm^_xYxS Alloys kdT. Penney and F. Holtzberg

Electrical Resistivity of Gd and La Monochalcogenides. , k6R. Hauger, E. Kaldis, G. von Schulthess, P. Wachter and C. Zurcher

Temperature Dependence of EPR Linewidth in EuSe: Field Suppression of Fluctuation ScatteringProcesses

.. .^7P. Streit, A. Kasuya and G.E. Everett

Pressure Dependence of the Rare Earth Knight Shift in the Singlet Ground State Systems PrP and TmP.^9H.T. Weaver and J.E. Schirber

Section h. CHALCOGENI PES AND OTHER MATERIALS

Magnetic Moment Distribution in Uranium Pioxide , 51J. Faber, Jr.

Magnetic Structures and Dimerization in Antiferromagnet La2pe2S^ , , 53R. Plumier, M. Sougi, A. Miedan-Gros and M. Lecomte

Magnetic Susceptibility and Mossbauer Study of Single Crystal FeS . .-..55J.R, Gosselin, J.L. Horwood, M.G. Townsend, R.J. Tremblay and A.H. Webster

Magnetic Properties of Iron Impurities in a Host of Metallic Nickel Sulphide.,, , 57H. Roux-Buisson, J.M.D. Coey and P. Haen

Shear Strains and Magnetic Structure in FeCl Under Magnetic Field, ft*, Perpendicular to theTernary Axis, c_, of the Crystal. Theoretical Model and Mossbauer Experiments , 59

J.A. Nasser and F. Varret

Control of the Spin Reorientation with Impurity Modification in RFeO, and Fe.BOg, 61N. Koshizuka, M. Hirano, T, Okuda, S. Nakamura, H. Hiruma and T. Tsushima

Direct Observation of the Spin-Reorientation Transition at Yb Sites in YbFeO, , 63G.R. Davidson, B.D. Dunlap, M-.-' Eibschutz and L.G. van Uitert

Anti ferromagnetic Ordering in ErPO, 65B.W. Mangum and D.B. Utton

The X-Axis Metamagnetic Transition of the Terbium Orthoferr i te., 67R. Bidaux, J.E. Bourse and J. Hammann

Magnetic Structure of Hexagonal Ba„NiReO, , 68

CP. Khattak, D.E. Cox and F.F.Y. WangMagnetization Process in DyCrO, , ,.... 69

K. Tsushima, T. Tamaki ana Y. Yamaguchi

Magnetic and Transport Properties of (SnTe), (MnTe) ,, 71R.W. Cochrane, F.T. Hedgcock, A.W. Ligntstone and J.O. Strom-Olsen

Quasi ferromagnetic Behavior of a Canted Antiferromagnet-NdCrO- ,. 72R.M, Hornreich, Y. Komet, R. Nolan, I, Yaeger and B.tt, Wanklyn

Section 5. A MIXED VALENCE SYSTEM; MAGNETITE

Experimental Studies of the Electrical Conductivity and Phase Transition in Fe_0. 73B. J. Evans

i

Charge Ordering and Lattice Instability in Magnetite ....79Y. Yamada

Fe_0. Verwey Transition. Calorimetric Determination of the Effects of Concentration of Zn andCd^Dopants 86

J.J. Bartel and E.F. Westruro, Jr.

Spin Polarized Photoemi ssion f rom Fe-Oj. , 88W. Eib, F. Meier, D.T. Pierce, K, Sattler and H.C. Siegmann

Theory of the Order-Disorder and Insulator~Retal Transformations in Magnetite...... , 89T. Tanaka and C.C. Chen

Section 6. AMORPHOUS AND DISORDERED SYSTEMS

Distribution of Magnon Modes in Amorphous Two Dimensional Ferromagnets and Antiferromagnets, 90D.L. Huber and R.P. Siemann

Spin-Wave Density of States in Linear Chains with Random Longitudinal and Transverse Exchange.......91R.A. Tahir-Kheli

Magnetic Properties of Mn0-A1 0 • Si0_ Glasses 92R.W. Kline, R.A. Verhelsf^A.H. de Graaf and H.O. Hooper

Anomalous Magnetic Behavior of a Pt-lat.%Fe Alloy 9^N.C. Koon and D.U. Gubser

The Mictomagnetic Transition in Cu-Mn , , , 9^H. Claus and J.S. Kouvel

Impure Classical Heisenberg Chain * , 3hT. Tonegawa, P. Pincus and H. Shiba

Mictomagnetic to Ferromagnetic Transition in Cr-Fe Alloys....... 95R.D. Shull and P.A. Beck

Spin-Stiffness Coefficient and Curie Temperature of Disordered Ferromagnetic Binary Alloys 97J. Bernasconi and H.J. Wiesmann

Static Properties of Dilute Ferri- and Anti ferromagnets , 99S. Kirkpatrick and A.B. Harris

Excitations in Randomly Diluted Ferromagnet , 101

A. Theumann and R.A. Tahir-Kheli

Spin-Waves in Di 1 ute Antiferromagnets , 102W.K. Holcomb and A.B. Harris

Magnetic and Spatial Short Range Order in Annealed A-B Paramagnets ......... 104G. B. Taggart and R.A. Tahir-Kheli

High Temperature Susceptibilities in Quenched Magnetic Alloys.... 106

T. Kawasaki

Short Range Order Effects in Randomly Diluted Quenched Heisenberg Paramagnet , 107

K. Kawasaki and R^A. Tahir-Kheli

Section 7. AMORPHOUS MAGNETIC MATERIALS

Magnetism in Rare Earth-Transition Metal Amorphous Alloy Films 108

K. Lee and N. Heiman

Temperature Dependence of Magnetization in Amorphous Gd-Co-Mo Films 110R. Hasegawa, B.E. Argyle and L-J. Tao

Magnetic Excitations in Amorphous Co.P , , 112H. A. Mook, D. Pan, J.D. Axe and L. Passell

Galvanomagnetic Effects in Gd-Co Sputtered Films.,., 113K. Okamoto, T. Shirakawa, S. Matsushita and Y. Sakurai

Magnetic Hyperfine Structure in Amorphous DyFe2

Ferromagnetism in Amorphous Solids ,., , 138

G.S. Cargill,lll

Spin Waves and Magnetic Interactions in the Ferromagnetic Heusler Alloys 1^5Y. Ishikawa and Y. Noda

Magnetic Excitations in Rare Earth Al„ Compounds..,.,..., 152P. Bak

Section 9. SPIN WAVES

Temperature Dependence of Magnetic Excitations in Pd-Fe,., , 159T.M. Holden *

Single-Ion Resonant States in Two Spin Wave Spectra.,.,,..... 160S.T. Chiu-Tsao, C. Paulson and P.M. Levy

Magnetic Excitations in Mn-Doped CoF„ , 161

E.C. Svensson, S.M. Kim, W.J.L. Buyers, S. Rolandson, R.A. Cowley and D.A. JonesStatistical Theory of Magnetic Excitations in Heisenberg Paramagnets 163

S.H. Liu and P.A. Swanson

Spin Waves in the Laves Compound Ho ogTb i~Fe. , 165R.M. Nicklow, N.C. Koon, CM. WiTliams and J.B. Milstein

Theoretical Magnon Dispersion Curves for Gd 165

B.N. Harmon, P.-A. Lindgiird, A.J. Freeman and J. RathAntiferromagnetic Resonance Studies of NaMnF, 166

G.O. White and R.L. White5

AFMR Versus Orientation in Weakly Ferromagnetic BaMnF^ , 168E.L. Venturini and F.R. Morgenthaler

New Resonance Effects in Antiferromagnetic MnF ,., 170

W.E, Tennant, R.B. Bailey and P.L. RicharclsTheory of Multimagnon Relaxation in Antiferromagnets , 172

R.M. White, S.M. Rezende and L.C.M. Miranda

Thermal Transport by Magnetoelastic Modes in CoCl2"6H20 \7kJ.E. Rives and S.N. Bhatia

Magnon Heat Conduction and Magnon Lifetimes in the Metallic Ferromagnet Fe^gCo^ at LowTemperatures , 176

Y. Hsu and L. BergerEffect of Spin Wave Amplification on the Magnetoresistance of Ferromagnetic Semiconductors 178

M.D. Coutinho, F°, L.C.M. Miranda and S.M. RezendeEffect of Single-Ion Anisotropy on Two-Magnon Raman Spectra of Heisenberg Ferromagnets 180

B.J. Choudhury and P.D. Loly

Section 10. MAGNETO OPTICS

Magnetic Circular Dichroism in Si and Sn Doped Garnets,., 182B. Antonini, A. Paoletti, P. Paroli, A. Tucciarone, J.F. Dillon, Jr., E.M. Gyorgy andJ.P. Reme i ka

Observation of the Twin-Walls Movement in KNiF, by Dichroism , , 184R.H. Petit, J. Ferre" and J. Badoz

A New Class of Room-Temperature Magneto-Optic Insulators: The Cobalt Ferrites 186R.K. Ahrenkiel, T.J. Coburn, D. Pearlman, E. Carnal 1, Jr., T.W. Martin and S.L. Lyu

Magnetooptical and Magnetic Properties of Terbium Iron Garnet at Low Temperatures 188T.K. Vien, H. Le Gall, A. Lepai11ier-Malecot, D. Minella and M. Guillot

Magneto-Optical Studies of Ferromagnetic Metals , 190J.L. Erskine

Magnetic Tricritical Behavior of FeCl2 ,. 195J.A. Griffin and S.E. Schnatterly

Magnetoopti cal Studies of Metamagnets. , 200J.F. Dillon, Jr., E. Y. Chen and H.J. Guggenheim

Section 11. EXCHANGE, COVALENCY AND HYPERFINE FIELDS

Multiplet Splitting of X-Ray Photoemission Spectra Core Levels in Magnetic Metals 207S.P. Kowalczyk, F.R. McFeely, L. Ley and D.A. |hirley

Covalency Effects on Tetrahedral and Octahedral Fe^ Sites in YIG: Charge and Spin Densitiesand Neutron Form Factors 209

E. Byrom, A.J. Freeman and D.E. Ellis

Covalency of Hydrated Complexes of Co2+ from ^0 END0R ..210J.W. Culvahouse, H. Glotfelty and W.P. Unruh -+

A Systematic Study of the Orbitally Dependent Rare Earth - Gd Exchange Parameters in GdC1_ 211R.S. Meltzer, O.K. Braswell and R.L. Cone

-+

Exchange Interactions in Isolated Trinuclear Clusters of Fe : Magnetic and Mossbauer Studies 213L.N. Mulay and G.H. Ziegenfuss

Magnetic Hyperfine Structure and Relaxation Effects in Bromobis(Morpholyldithiocarbamato)Iron(I I I).215J.M. Grow and H.H. Wickman

Temperature Independent 55Mn Magnetic Hyperfine Fields in ErMn^ and TmMn^ 217R.G. Barnes and B.K. Lunde

On Superexchange Theory , 218

R.S. Tu and T.A. KaplanMossbauer Effect Study of Co57d -2H 0 and Co57Cl_-6H 0 219

B.A. Alavi, D.F. Goble and W. Leiper

Resonance Energy Transfer in YCrO-.., , 219

C. Satoko and S. Washimiya

Exchange Stiffness Constants in Ni-Co Alloys ,, 219H. Yamauchi, I. Maeda and H. Watanabe

Section 12. BAND STRUCTURE AND CRYSTAL FIELDS

Ca I or i metric Evidence for Spin Fluctuations in UA12 , 220R.J. Trainor, M.B. Brodsky and L.L. Isaacs

The Heat Capacity of USn, 222

S.D. Bader, G.S. Knapp and H.V. Culbert

Role of Itinerant 5f States on the Fermi Surface of Th and Possible Impurity Local MomentFormation .' 223

D. D. Koelling and A.J. Freeman

Pressure Effects on the Band Structure of Gadolinium, , 225

M.I. Darby and N. Richardson

Electronic Structure of MnBi 227

W. Stutius, R.M. White, T. Chen and G.R. Stewart

Neutron Scattering Determination of the Crystal Field Splittings in TmN .....229

H. L. Davis and H.A. Mook

X-Ray Photoemi ssion Study of the Density of States of the Transition Metals 229L. Ley, S.P. Kowalczyk, F.R. McFeely and D.A. Shirley

Magnon-Phonon Coupling in Metamagnetic Systems: Evidence for One Phonon-Two Magnon Interactions...,230R.S. Silberglitt, K.L. Ngai, E.N. Economou and J. Ruvalds

Observation of Virtual Phonon Exchange in a Magnon-Like Exciton of Tb(OH), 233R.L. Cone and R.S. Meltzer

X-Ray Photoemission Study of Meta 1 -1 nsulator Transitions in V02, V20_ and NiS., 235G.K. Wertheim, M. Campagna, H.J. Guggenheim, J.P. Remeika and D.N.E. Buchanan

Magnetic Field Induced Infrared Activity of Phonons in TbPO^.., 237G. A. Prinz and J.F.L. Lewis

Section 13. SINGLET GROUND STATES AND PHASE TRANSITIONS

Hyperfine Enhanced Nuclear Cooling to 1.3 mK in PrNij. , 238K. Andres, P.H. Schmidt and S. Darack

Magnetic Excitons in Praseodymium 239J.G. Houmann, A.R. Mackintosh, B.D. Rainford, O.D. McMasters and K.A. Gschneidner, Jr.

Microwave Resonance Effects in Paramagnetic Singlet-Ground-State Systems... 240

K. Sugawara, C.Y. Huang and B.R. CooperLattice Effects in Singlet-Ground-State Systems 24l

E. Bucher, P.D. Dernier, J.P. Maita, L.D. Longinotti, B. Luthi and P.S. Wang

Fluctuations in Singlet-Ground-State Magnets 242

M.A. Klenin and J.A. Hertz

Field-1nduced Transitions in DySb 244

I. 0. Brun, G.H. Lander, F.W. Korty and J.S. Kouvel

Effects of Hybridization on Electron Localization Transitions in Solids , 246

J.M. Robinson

Excited State Resonance Study of Critical Behavior in Singlet-Ground-State Antiferromagnets 248

C.Y. Huang, K. Sugawara and B.R. CooperCorrelation Model of a Binary Induced Moment Crystal in a Mean Field Approximation. Singlet-

Triplet System 250E. Shiles

Magnetic Field Dependence of Molecular Orientations in Liquid Crystal Droplets , 252M.J. Press and A.S. Arrott

Magnetic Interactions in Ni++ Salts With the NiSnCl6»6H20 Structure............ 254M. Karnezos and S.A. Friedberg

Section 14. PHASE TRANSITIONS

Field Induced Magnetic Phase Transitions in DAG 255W.P. Wolf

Critical and Tricritical Behavior in FeCl2 - A Summary 258R.J. Birgeneau

Paramagnetic Resonance Linebroadening and Spin-Spin Relaxation Near Magnetic Critical Points 261

M.S. Seehra and D.L. Huber

Static, Dynamic and Critical Effects at the Spinflop Transition of Antiferromagnets.... 268

H. Rohrer

Theory of Multicri tical Transitions and the Spin-Flop Bicritical Point 273M.E. Fisher

Section 15. CRITICAL PHENOMENA I

jU+ Studies of Critical Spin Fluctuations in Ni 281B. D. Patterson, K. Nagamine, CA. Bucci and A.M. Portis

Critical Behavior of the Sublattice Magnetization of Dy Near the Neel Point........................282C. L. Chien, J.C. Walker and E. Loh

Small-Angle Neutron Scattering from Cobalt in the Critical Region., .......283

C.J. Glinka, V.J. Minkiewicz and L. Passell

Critical Exponents of FeBO, 285D.H. Wilson and S. Broersma

Critical Phenomena in the A.C. Susceptibility of Iron Whiskers..,.. .....287B. Heinrich and A.S. Arrott

Correction to Mean Field Description of Tricri tical Systems, ,...289C. Paulson and P.M. Levy

Trier i tical i ty of Cubic Rare-Earth Compounds ,,, 289P.M. Levy and L.F. Uffer

Ultrasonic Propagation Near the Curie Point of MnP...... , 290B. Ferry and B. Golding

Thermal Expansivity of MnP Near the Ferromagnetic Critical Point,......., , 292B. Golding and C.A. Helms

Spin 3/2 Ising Model for Tricritical Points in Ternary Fluid Mixtures 293S. Krinsky and D. Mukamel

An Exactly Solvable Model for Tricritical Phenomena....,., , 2SkV.J. Emery

Symmetry Breaking "Irrelevant" Operators and Tetracritical Points in Anisotropic Magnets .,296A. Aharony and A.D. Bruce

Zero- and Low-Temperature Phase Transitions and the Renorma1ization Group. 298J.A. Hertz

Section 16. CRITICAL PHENOMENA I I

Magnetic Ordering and Critical Behavior Near Surfaces.., ....300

P.C. Hohenberg and K. BinderFinite Size Behavior of the Ising Square Lattice with Free Edges,., ., 304

D. P. Landau

Hyperfine Fields and Critical Point Exponents of Some Two-Dimensionally Layered Fe(2+) Salts 307J.S. Schurter, R.G. Barnes and R.D. Willett

Critical Behavior of the Susceptibility in a Two-Dimens ional Ferromagnet 309M. Ai*n and J. Hammann

Effect of Randomness on Critical Behavior of Spin Models,.....,..., , ,...3UT.C. Lubensky and A.B. Harris

Critical Behavior of a Random m-Vector Model 313G. Grinstein

Renormal ization-Group Calculation of Critical Exponents in Three Dimensions., 315G.R. Golner and E.K. Riedel

Global Nonlinear Renormal i zation Group Analysis for Magnetic Systems 317J.F. Nicoll, T.S. Chang and H.E. Stanley

Crossover Scaling Functions from Renormal i zation Group Trajectory Integrals , 319D. R. Nelson

Renormalization Group Calculation of Heisenberg-To-Dipolar Crossover Scaling Functions 321A.D. Bruce, J.M. Kosterlitz and D.R. Nelson

High-Temperature Series Studies of Ising-Like Wilson Models in Three Dimensions 322W.J. Camp and J.P. Van Dyke

Section 17. THEORY

Theory of Itinerant Ferromagnet i sm 325R.E. Prange and V. Korenman

Phonon-Modulated Susceptibility of a Narrow-Band Hubbard Model 326M. Barma and R.A, Bari

Generalized Susceptibility of Sc Metal.. 327J. Rath, R.P. Gupta and A.J. Freeman

Dynamic Susceptibility Calculations in Ferromagnetic Iron, 329J.F. Cooke, J.W. Lynn and H.L. Davis

The Influence of Many-Electron Exchange Effects on the Ground State Total Spin in Ferromagnetics..331M. Popovic-Bozic

Multiple Spin Correlation Effects 333N. Giordano and W.P. Wolf

The Spectral Weight of Low-Lying Excitations in the One-Dimensional Spin 1/2 HeisenbergAnt i ferromagnet , 335

J.C. Bonner, B. Sutherland and P.M. Richards_n

Dynamical Spin Correlation Functions in a System of Randomly Distributed Spins with rInteractions • 338

P.A. Fedders, C.W. Myles and C. Ebner

Application of Percolation Theory to Magnetization in 1D-3D Systems, 3^0I. Riess and M. Pollak

Insulating States and Metal-Nonmetal Transition in the Hubbard Model, , 3^1T. Arai

Comparison of the Magnetic Properties of the Hubbard Hamiltonian in the Weak Correlation Limitto the HFA 3^3

L.C. Bartel and H.S. Jarrett

Application of the Narrow Band Model for Disordered Ferromagnetic Alloys to the SolidSolutions Fe. Co S and Ni. Co S 3^5

G.F. Abito and J.W. Schweitzer

Section 18. ACTINIDES AND CHAINS

Magnetic Properties of the Neptunium Laves Phases: NpMn?, NpFe«, NpCo,, NpNi- ....347A.T. Aldred, B.D. Dunlap, D.J. Lam, G.H, Lander, H.H. Mueller ana I. Nowik

Magnetic Properties of Uranium and Plutonium Laves Phases with 3d Transition Elements. 349D.J. Lam and A.T. Aldred

High-Field Susceptibility in Ferromagnetic Np0s_... .351B. D. Dunlap, A.T. Aldred, D.J. Lam and G.R. Davidson

Magnetic Susceptibility Measurements on Actinide-Be,_ Intermetal1ic Compounds ....353M.B. Brodsky and R.J. Friddle

s

Magnetic Properties of Donor-Acceptor Compounds of Tetrathiofulvalene with Bis-Dithiolene Metal

Comp 1 exes , 355I.S. Jacobs, L.V. Interrante and H.R. Hart, Jr.

Antiferromagnetic Order in Amphibole Asbestos 357J.C. Eisenstein, M'.F. Taragin and D.D. Thornton

A Study of the Magnetic Behavior of Iron Impurities in the Linear Antiferromagnet CsNiCl- 359P.A. Montano

Magnetic Transitions in Two Dimensional Systems as a Function of Interlayer Separation:Bis-Propylammonium TetrachloromanganateU I) and Bis-Pentadecylammonium Tetrachloromanganate(lI)...361

B.C. Gerstein, C. Chow, R. Caputo and R. Willett

Linear Chain Compounds: Metamagnetism in Co(pyr)_Cl7, Fe(pyr)_(NCS)„ and Ni(pyr)_Cl- 363S. Foner, R.B. Frankel, E.J. McNiff, Jr., W7M. Reiff, B.F. Little and G.J. Cong

Magnetic Ordering in Several Fe-Chain Silicate Compounds.,.., 365R.J. Borg, F.R. Szofran, W.L. Burmester and D.J. Sellmyer

The Onset of the 5f Energy Band in Th, U Rh, Intermetal 1 ic Compounds. 367G. P. Sykora, A.J. Arko and D.O. van ftstenburg

Section 19- MATERIALS SYNTHESIS AND NEW MATERIALS

A New Series of Cubic Room-Temperature-Magnetic Oxides... , 368

B. Bochu, J. Chenavas, A. Collomb, M.N. Deschizeaux, J.C. Joubert and M. Marezio

Influence of Annealing on the Absorption of Bi-Based Iron Garnet Films. ..370

A. Akselrad, R.E. Novak and D.L. Patterson

Increased Curie Temperature and Superexchange Interaction Geometry in Bismuth and Vanadium

Substituted YIG 372

S. Geller and A.A. Colville

Cation Deficiency in Si-Substituted YIG , 371*

R.M. Housley, S. Geller and G.P. Espinosa

Preparation and Properties of CdC^Se^ Thin Films 376D. I. Tchernev and A.J. Syllaios

Preparation and Microchemical Characterisation of Magnetic Semiconducting EuCr.Se, SingleCrystals T..7 378

H. Pink

The Stabilization of the High Temperature Phase of MnBi by the Addition of Rhodium or Ruthenium..379K. Lee, J.C. Suits and G.B. Street

The Magnetic Properties of VgSeg • ^80B. G. Silbernagel, A.H. Thompson and F.R. Gamble

Magnetism in Neptunium Borides 382J.L. Smith and H.H. Hill

Nonferromagnetic Cr-Si-Mn Invar Alloys , 384

K. Fukamichi and H. Saito

Characterization of Ferromagnetic Precipitates in Glasses by Variable Temperature FerromagneticResonance .386

E. J. Friebele, D.L. Griscom and C.L. Marquardt

Ferromagneti sm in the Metallic Compound Fe T.aS (x^l/3).. • 388M. Eibschutz, F.J. DiSalvo and G.W. Hull, Jr.

Single Crystal Growth of Ho. Tb Fe 388J.B. Milstein, N.C. Koon? L^R. Johnson and CM. Williams

Section 20. SURFACES AND SMALL PARTICLES

High Frequency Pyromagnetic Measurements of CoS« Se 389M.L. Malwah, R.W. Bene and R.M. Walser

X

Magnetic Hyperfine Field Structure of Iron Urushibara-Type Catalysts.. 391B.J. Evans and L.J. Swartzendruber

Size Effect on the Spin Wave Resonance Spectra of Heisenberg Antiferromagnetic Films 393S.T. Chiu-Tsao

Diffraction of a Thermal Atomic Beam from a Magnetic Surface,... 394

E.D. Thompson and G. Felcher

The Surface of a Ferromagnetic Electron Gas............ , 397

R.L. Kautz and B.B. Schwartz

Field-Emission-Energy-Distribution (FEED) Curves of Ni(lOO) Below and Above the Curie Point,. 399M. Campagna and T. Utsumi

Large Magnetic Effect on Photothresholds in Doped EuO 401

W. Eib. F. Meier, D.T. Pierce and P. RuchtiOn Electron-Spin-Dipolarisation by Interaction Between Electrons and Spin-Waves.,.,.., ...403

G. Heber

Observations on Surface Spin Waves in Ni0 405R.G. Schlecht

Section 21. METALS AND ALLOYS I

Helical Spin Ordering and Magnetic Constants of (Sr. «Ban .J-Zn-Fe.-O., 406M. Mita and N. Momozawa

°*° u,/ 11 !/ iL

Strain Waves in Chromium and Its Alloys., ...... 408

Y. Tsunoda, M. Mori, Y. Nakai and N. Kunitorai

Phenomenology of the Spin Flip Transition in Chromium 410

J.W. Allen and C.Y. YoungMagnetic Properties of Cr Containing Dilute Concentrations of Co in the Neighborhood of theNeel Temperature. , 412

S. Arajs, E.E. Anderson, J.R. Kelly and K.V. RaoPressure Dependence of the Magnetic Ordering Temperatures in Cr-Fe Alloys.,. 414

L.R. Edwards and I.J. Fritz

Magnetic Entropy and Magnetization of ZrZn.. , 416

R. Viswanathan and J.R. Clinton

Fermi Surface "Nesting" in Tb Alloys A18P. Burgardt and S. Legvold

Magnetic Properties of Some Au_R Compounds... 420L.R. Sill and B. Prindivifle

A Neutron Investigation of the Sinusoidal Lattice Wave in Pure Chromium ...422

C.F. Eagen and S.A. Werner

Field-Induced Transitions in DyAu£» DyAg„, TbAu and TbAg...... 423T. Kaneko, M. Ohashi, S. Miura, K. Kamigaki, A. Hoshi and H. Yoshida

Section 22. METALS AND ALLOYS I I

Magnetic Form Factor of Electrons in 3d Bands , .....425R.M. Moon

Short-Range Magnetic Order in Cu-Mn , 427G.P. Felcher, S.A. Werner, R.E. Majewski and J.S. Kouvel

Neutron Scattering and Magnetization Measurements on the Kondo Compound CeA? 428A.S. Edelstein, T.O. Brun, G.H. Lander, O.D. ttcflasters and K.A. Gschneidner, Jr.

Magnetic and Lattice Properties of CeBi 430G.H. Lander, M.H. Mueller and 0. Vogt

Negative Magnetoresistance in High-Magnetic-Field bcc Titanium Alloy Superconductors. ....432J.W. Lue, A.G. Montgomery and R.R. Hake

Inhomogeneity and Invar Effect in Fe-Pt Alloys 434K. Sumiyama, M. Shiga, Y. Nakamura and G.M. Graham

Magnetoresi stance Anisotropy in Ferromagnetic Ni-Co Alloys at Low Temperatures 435

T.R. McGuire

Magnetic Properties of MnPt and CoPt 437C.W. Chen and R.W. Buttry

Volume Dependence of VBS Parameters 439

C. L. Foiles

A Correlation Between Atomic Volume and the Square of the Atomic Magnetic Moment for d GroupTrans i t ion Metals: Appl i cat ion 441

W.F. Schlosser

Section 23. METALS AND DILUTE ALLOYS

Low Temperature Magnetic Susceptibility of Dilute Cu-Au(Fe) Alloys..... .....443J. Sheu and W.R. Savage

Low Temperature Transport and Specific Heat Measurements in Rh(Fe) 445J.E. Graebner, J.J. Rubin, R.J. Schutz, F.S.L. Hsu, W.A. Reed and R.J. Higgins

Magnetization and Magnetoresi stance of the Localized Spin Fluctuating System PtCo 447G. Williams, G.A. Swallow, A.D.C. Grassie and J.W. Loram

Influence of Crystal Field Splitting of Mn and Cr on the Electrical Resistivity of Zinc 449J. Kastner, E.F. Wassermann, F.T. Hedgcock and J.O. Strom-Olsen

Local Moment-Conduction Band (s-d) Exchange in CuMn and AcjMn 451R.E. Walstedt and L.R. Walker

Magnetic Behavior of Ni and Its Dilute Alloys 453M.B. Stearns

Electrical Resistivity and Magneto-Resistivity of Very Dilute Cu-Cr Alloys 455S. Legvold, P. Burgardt, D.T. Peterson, T.A. Vyrostek and J.A. Schaefer

The Electrical Resistance Due to Nonmagnetic Impurities in Ferromagnetic Metals 456

D. J. Kim and B.B. Schwartz

Study of the Anderson Model of a Dilute Magnetic Alloy Using Feenberg Perturbation Theory.........458S.P. Bowen

Lattice Location of Xe in Iron 460

M. Van Rossum, G. Langouche, H. Pattyn. G. Dumont, J. Odeurs, A. Meykens, R. Coussement

and P. Boolchand

Hyperfine Fields in Nd Co]7, NdCo , and NdCo 462R.L. Streever

' 5 3

Section 24. DILUTE ALLOYS

Magnetic Ordering in PdGd: Electrical Resistivity and Magnetic Susceptibility 464

V. Cannella, T.J. Burch and J.I. Budnick

Skew Scattering and Quadrupole Scattering by Rare Earth Impurities in Silver, Gold and A1 urninum..466A. Fert and A. Friederich

BGS Relaxation in the Dilute Alloys La:Ln.... 472D. S. Schreiber and R.F. Wade

Magnetization of Au-Gd and Au-Yb at Very Low Temperatures..., 474E. Jaehne and O.G. Symko

Electrical Res i st ivi ty of (Pd, Ag ) qqFe , 474K.V. Rao, 0. Rapp, Ch. Johannssoft, JIT. Budnick, T.J. Burch and V. Cannella

Magnetic Susceptibility Study of the Continuous Demagnetization of Ce Impurities in the(La,Th)Ce System . 475

J.G. Huber, J. Brooks, D. Wohlleben and M.B. MapleMbssbauer Studies of Dilute Ag:Fe and Ag:Co Alloys .477

J.R. Thompson and J.O. ThomsonMossbauer Experiments on Dilute 57Fe in Cu, Ag and Au 479

P. Steiner, D. Gumprecht, W.v. Zdrojewski and S. HufnerLow Temperature Resistivity Measurements of Dilute Iron in Exchange-Enhanced Palladium andPal ladium-Si Iver Al loys .481

R.P. Bittner, R.A. Levy and J.A. Rayne

Section 25. MICROWAVE MATERIALS AND DEVICES

Microwave Losses of Sn-Substi tuted Polycrystal 1 ine Ca-V-Garnets with Large Grains 483T. Inui, H. Takamizawa, N. Ogasawara and T. Fuse

Nonlinear Properties of Aluminum - Substituted Lithium Ferrite.... , 485S. Dixon, Jr.

Properties of Spin Wave Excitations in Liquid Phase Epitaxy YIG Films , 486C. Vittoria and J.J. Krebs

Hysteresis Loop Properties of Li-Ferrite Doped with Mn and Co 487H.J. Van Hook and G.F. Dionne

Single-Phase I nhomogenei ty in Ceramic Garnets , 489L.M. Levinson, I.S. Jacobs, C. Greskovich and G.H. Glover

Magnetic Properties of Single Crystal CuNi-l8H and MgZn-l8H Solid Solutions 491R.O. Savage, A. Tauber and J.R. Shappirio

Microwave Resonance Study of Ba-Zn.Fe^. Cv, 493R.W. Grant, M.D. Lind, G.P. Espinosa, I.B. Goldberg and F.E, Reisch

Interaction of Surface Magnetic Waves in Anisotropic Magnetic Slabs .....495A.K. Ganguly, C. Vittoria and D. Webb

Planar Microwave Multipole Filters Using LPE YIG, 497J.M. Owens, J.H. Collins and J.D. Adam

Tapped Microwave Nondi spersi ve Magnetostatic Delay Lines... 499J.D. Adam, Z.M. Bardai, J.H. Collins and J.M. Owens

Improvement in Broad Band Ferrite Isolators 501L. Courtois, G. Forterre and B. Chiron

The Synthesis of Cylindrically Symmetric Static Magnetic Fields in a Locally SaturatedFerromagnet 503

F. R. Morgenthaler

Section 26. MICROWAVE RESONANCE AND RELAXATION

Theory of Transmission Resonance in Ferromagnetic Metals... 505Y.J. Liu and R.C. Barker

Remarks on Anti resonance in Ferromagnetic Metals.... 507

P. Lubitz and C. Vittoria

Microwave Transmission and Absorption Measurements on Supermalloy 509J.F. Cochran, B. Heinrich and G. Dewar

Ferromagnetic Resonance in Metallic Multilayers 511G. Spronken, A. Friedmann and A. Yelon

Nonlinear Effects in Ferromagnetic Metals.. .'512O.L.S. Lieu and G.C. Alexandrakis

Ferromagnetic Resonance Relaxation Processes in lx\^(...... 514M. Mita and H. Shimizu

Spin-Wave Relaxation and Phenomenological Damping in Ferromagnetic Resonance 516V. Kambersky and C.E. Patton

Ferromagnetic Resonance of Two-Domain Spherical Metal lie Iron. , 518D. L. Griscom, E.J. Friebele and C.L. Marquardt

Absorption Line Shape of Electron Spin Resonance in Metals..,,.,.........,.. 520H. S. Jarrett, J.E. Gulley and P.C. Hoell

Van Vleck Susceptibility and Conduction Band Exchange in the Noble Metals.,. ..522R.E. Walstedt and Y. Yafet

Theory of Spin-Lattice Relaxation for Paramagnetic Ions ., 524R.S. Wilson, A.J. Fedro and D.C. Knauss

Measurement of Interchain Diffusion in a Quasi-One-Dimensional Heisenberg Magnet...... 526P.M. Richards and R.C. Hughes

Section 27. NON-VOLATILE MAGNETIC STORAGE

Magnetoresistive Transducers in High-Density Magnetic Recording , 528D.A. Thompson

Elimination of Domain Wall Velocity Saturation and Local Coercryity Variations by MultilayerGarnet Materials , , 533

R.D. Henry, E.C. Whitcomb and M.T. ElliottThin-Film Inductive Recording Heads.. .....534

W. Chynoweth and W. KayserAdvances in Recording Tape Media 540

B. Gustard

Lorentz Electron Microscopy Studies of Bubble Domains 54lP.J. Grundy, G.A. Jones and R.S. Tebble

Section 28. RECORDING, BUBBLE DEVICES, AND FERROfLUI PS

Some Aspects of Permalloy Chevron Strip Detector 5^7S. Yoshizawa, M. Kasai, M. Hiroshima and N. Saito

On Magnetic Path Saturation in Thin-Film Heads -.5^7K. Kawakami, E. Kaneko and K. Ono

An Integrated Magnetoresi stive Read, Inductive Write High Density Recording Head 548C. H. Bajorek, S. Krongelb, L.T. Romankiw and D.A. Thompson

Novel Bubble Drive. ..550T.J. Walsh and S.H. Charap

Magnetic Bubble Propagation by Pulsed rf Currents 552W.C.Hubbell

Permalloy Film for Single-Level Detector with High Sensitivity 554K. Komenou, H. Nakajima and K. Asama

Improved Chevron Gap Detector 556A. Lill

Magnetostrictive-Piezoelectric Bubble Detectors 558

W. Ishak, W. Kinsner and E. Delia Torre

Concentration Effects in Ferrofluids 560

E.A. Peterson, D.A. Krueger, M.P. Perry and T.B. Jones

Section 29. BUBBLE MATERIALS

Ternary Amorphous Alloys for Bubble Domain Applications., , 562P. Chaudhari, J.J. Cuomo, R.J. Gambino, S. Kirkpatrick and L.J. Tao

Polar Kerr Rotation and Sublattice Magnetization in GdCoMo Bubble Films 564

B. E. Argyle, R.J. Gambino and K.Y. AhnMagnetic Properties of GdFe Amorphous Alloy Films Prepared by Sputtering ..566

T. Kobayashi, N. Imamura and Y. MimuraAnnealing Behavior of Amorphous Gd-Co-Mo Thin Films.,. 567

R.J. Kobliska and A. Gangulee

Uniformity of Amorphous Bubble Films.....,

570

R.J. Kobliska, R. Ruf and J. CuomoUniaxial Anisotropy in Rare Earth (Gd, Ho, Tb) - Transition Metal (Fe, Co) Amorphous Films 573

N. Heiman, A. Onton, D.F. Kyser, K. Lee and C.R. Guarnieri

Reversal of Hall Effect and Kerr Rotation in Ferrimagnetic Rare Earth-Cobalt Systems.... 575

A. Ogawa, T. Katayama, M. Hirano and T. Tsushima

Magnetic Bubbles in Ni. Au Alloys. 577R.H. Geiss, K. LeeandxJ.C. Suits

The Growth and Magnetic Anisotropy of Bulk and Epitaxial Tetragonal CuFe.O^ 580D.A. Herman, Jr., R.L. White, R.S. Feigelson, B.L. Mattes and H.W. Swarts

(EuTm) (FeGa)^O.- Garnet Films with One-Micron Diameter Magnetic Bubbles 582E;A. GeiSs, J.E. Davies, C.F. Guerci. H.L. Hu, J.D. Kuptsis and J.M. Shaw

LPE Growth of Garnet Films Under Isothermal Conditions from PbO:B20- Based Solutions ContainingOrthoferri te Crystals. 584

T.S. Plaskett and R. Ghez

Magnetocrystal 1 ine Anisotropy of Eu:YIG LPE Films Grown on (111) Substrates 586

D. C. Cronemeyer, T.S. Plaskett and E. Klokholm

Anisotropy Constants of Garnet Films from Stripe Domain Measurements 588M.W. Muller and S.K. Chung

Transverse Magnetization Curves in Bubble Films with Parameter Dispersions 590

R.F. Soohoo and K. Lee

Section 30. BUBBLE DYNAMICS AND WALL STRUCTURE

High-Speed Photography of Topological Switching and Anisotropic Saturation Velocities in aMisoriented Garnet Film , 593

A.P. Malozemoff and K. PapworthDomain Wall Velocity During Magnetic Bubble Collapse 595

G.P. Vella-Coleiro

Theory of Domain-Wall Motion Induced by Microwave Magnetic Fields 597E. Schlomann

Velocity Scatter in Bubble Domain Transport Measurements 598R.M. Josephs and B.F. Stein

Bubble Velocities in (YLa) (FeGa) 0]2 Films 601F. H. de Leeuw and J.M. Robertson

In-Plane Pulse Response of Bubble Domains 603

A.P. Malozemoff and J.C. Slonczewski

Dynamics of Micron Size Bubbles , ................. 605H.L. Hu and E.A. Giess

Annihilation of Bloch Lines in Hard Bubbles,.., , 608

R.W. Patterson

Electron Diffraction at Vertical Bloch Lines in Domain Walls., , 610

M.I. Darby and P.J. GrundyInstantaneous Radial Wall Velocities in Magnetic Garnet Bubble Domains. ,....612

G. J. Zimmer, L. Gal, K. Cural and F.B, HumphreyDynamics of Hard Walls in Bubble Garnet Stripe Domains , 612

T.M. Morris, G.J. Zimmer and F.B. HumphreyProperties of Bloch Points in Bubble Domains 613

J.C. Slonczewski

Effect of Bloch Points on the Dynamic Properties of Bubble Domain... 615R. Hasegawa

Section 31. BUBBLE PROPAGATION AND RELATED TOPICS

The Use of Bubble Lattices for Information Storage 6170. Voegeli, B.A. Calhoun, L.L. Rosier and J.C. Slonczewski

Error Generation in Bubble Propagation......... ,, 619H. B. Callen, W.D. Doyle and J. Seitchik

Bubble Lattice Translation - Experimental Results... 620L.L. Rosier, D.M. Hannon. H.L. Hu, L.F. Shew and 0. Voegeli

Bubble Lattice Translation-Analysis , 622J.S. Eggenberger

Control of Domain Wall States for Bubble Lattice Devices., 624

Ta-1in Hsu

Dynamic Penetration of Potential Barriers in Garnet Films 627T.J. Beaulieu and 0. Voegeli

Bubble Domain Propagation Mechanisms in Ion-Implanted Structures 630

G.S. Almasi, E.A. Giess, R.J. Hendel. G.E. Keefe, Y.S. Lin and M. Slusarczuk

Improved Propagation Margin in YIG Coated LPE Garnet Films for Bubble Devices 633Y. Hidaka, K. Yoshimi, T. Kibiya and M, Mikami

Analytical Model for Bubble Propagation.. , , 635G.S, Almasi, Y.S. Lin, E. Munro and M. Slusarczuk

An Experimental Technique for Characterizing Local Variations of the Vertical Magnetic Fieldsin Bubble Circuits , 638

S.K. Singh and W.C. Hubbell

An Experimental Magnetic Bubble Time-Slot Interchanger.....,, 641

Y.S. Chen, P.I. Bonyhard and J.L. SmithPassive Replicator for Magnetic Bubbles 643

T.J. Nelson

Two Layer Permalloy Circuits for 1.5-/Mm Diameter Bubble Propagation, .645S. Matsuyama, R. Kinoshita and M. Segawa

Material and Submicron Bubble Device Properties of (LuSmJ-Fej-O.-. .„ ......647D.C. Bullock, J.T. Carlo, D.W. Mueller and T.L. BrewSr

^

Magnetization Reversal Study in Permalloy Bubble-Propagation Circuits with Magneto-OpticalEquipment of Micron Resolution 649

G.S. Krinchik, E.E. Chepurova, U.N. Shamatov, V.K. Raev and A.K. Andreev

Section 32. MAGNETO-ELASTIC AND ANIS0TR0PY EFFECTS

Magnetoelastic Coupling in Paramagmetic Dysprosium ..65IB.M. Kale, P.L. Donoho, D.G. Pinatti and 0. Ferreiro

Magnetoelastic Ultrasonic Generation in TbFe2 Thin Films 653L.B, McLane, P.L. Donoho and W.L. Wimbush

Second Harmonic Generation of Elastic Waves in RbMnF, Through Spin/Elastic Interactions 655J.K. Jao and F.R. Morgenthaler

Magnetoelastical ly Driven Domain Wall Resonance at Magnetic Transitions 658

D.T. VigrenMossbauer and X-Ray Study of the Self-Induced Magneto-Static Distortion of TbxY^_xfre2Laves Phases , 660

R.S. Preston, A.E. Dwight, A.J. Fedro and C.W. Kimball

Electric Field Dependence of the Magnetic Anisotropy Energy in Magnetite,., 661G. T. Rado and J.M. Ferrari

Spin Reorientation Studies in Cubic Laves Rare-Earth Iron Compounds 662

U. Atzmony and M.0. Dariel

Stress Dependence of the Magnetic Susceptibility in Praseodymium Between 1.5 K and 25 K 664

H. R. Ott

Field-Dependent Magnetic Anisotropy of Some Mixed Garnets with Light Rare Earths 666P.J. Flanders, T. Egami, E.'M. Gyorgy and L.G. Van Uitert

Magnetic-Anneal-1 nduced Uniaxial Anisotropy in TbFe. , 668

J.H, Schelleng, N.C. Koon

Magnetostriction of Single Crystal and Polycrystal Rare Earth-Fe_ Compounds..,. 670A.E. Clark, J.R. Cullen and K. Sato

Magnetization and Magnetic Anisotropy in Lu Tm„ 'ntermetal 1 ics 672A.E. Miller, K. Miura, H. Rodrigues anct T. 8'SMva

Magnetoelastic Relaxation in Nickel-Iron Films 674J. Tymowski, H. Lachowicz, K. Burkiewicz and M. Kwiecien

Section 33. RARE EARTH PERMANENT MAGNETS

Properties of Microsamples of Sintered Coba 1 t-Samarium Magnets 676J.J. Becker

Low Temperature Magnetic Hardness in Substituted SmCo_ , , 678H. Oesterreicher and D. McNeely

Co,.Sm Appl ied 679P.G. Frischmann

Evidence for New Magnetic Rare Earth-Cobalt Phases 680K.J. Strnat and A.E. Ray

Oxidation Controlled Aging of SmCOj. Magnets .....682P.J. Jorgensen

Structure Transformations in Sputter-Deposited Sm_Co.7 Alloys 683R. Wang and R.P. Allen

1

Mechanism for Coercivity in Splat-Cooled RCo_ Compounds , 685E. Ziai and Y.B. Kim 5

Preparation and Characterization of Splat-Cooled R-Co Compounds., , ..687D.V. Ratnam, K.S.V.L. Narasimhan and B.C. Giessen

Plasma Sprayed Samarium-Cobalt Permanent Magnets 689M.C. Will son and R.J. Janowiecki

Kinetics of Coercive Force Changes During Aging of Co-Fe-Cu-Ce Permanent Magnets 691G. Y. Chin, M.L. Green and H.J. Leamy

Magnetic Properties of R(Co, Cu ) Compounds 693R.S. Perkins, A.JL. PerryT hT fiagel and A. Menth

Permanent Magnets on the Basis of MMC0_ and the Relation Between Their Properties and thePrimary Magnetic Properties of These Compounds ....695

H. Nagel and H.P. Klein

Section 3k. APPLIED MAGNETICS

Amorphous Alloys as Soft Magnetic Materials 697T. Egami, P.J. Flanders and CD. Graham, Jr.

Grain-Oriented Silicon-Iron : Its Basic Properties, Behaviour and Applications 701J.E. Thompson

Magnetization Processes in Ideally Soft Materials 702B. Heinrich and A.S. Arrott

The Origin of Losses in Grain Oriented Silicon Steel....... 708G. L. Houze, Jr. and J.W. Shilling

Science-Engineering Interactions in Developing High Induction Electrical Steels 708H. W. Schadler and H.C. Fiedler

Section 35. SILICON IRON AND RELATED MATERIALS

Magnetic Properties of Oriented Iron-Cobalt Alloys...., 709K. Foster and D.R. Thornburg

Recent Developments in Magnetic Properties of Grain-Oriented Silicon Steel with HighPermeabi 1 i ty 71 ^

A. Sakakura, T. Wada, F. Matsumoto, K. Ueno, K. Takashima and M. KawashimaEffects of A1N on the Secondary Recrystal1ization Behavior of 3% Si-Fe (110) (001) SingleCrystals 716

F. Matsumoto, K. Kuroki and A. Sakakura

The Magnetic Properties of Japanese Hl-B (110) 1001] Grain-Oriented Silicon-Iron 718S.M. Pegler

Core Loss of Grain-Oriented 3% Silicon-Iron at High Inductions 721M.F. Littmann

Effect of Aluminum on the Texture and Magnetic Properties of a Copper Bearing Non-OrientedSilicon Steel 72b

P.K. RastogiThe Shape of Individual Barkhausen Pulses 726

P.J. Coyne and J.J. KramerBarkhausen Spectra of Iron at 300 K and 77 K 729

P. Deimel and H. Daniel

Magnetic Bahavior of Heusler Crystals Disordered by Plastic Deformation 731G. Y. Chin, M.L. Green, R.C. Sherwood and E.M. Gyorgy

Magnetic Anisotropy in Co and Co-Ni Single Crystals Deformed by Cold Rolling 733M. Takahashi, T. Wakiyama, T. Anayama, M. Takahashi and T. Suzuki

Temperature Dependence of Magnetic Anisotropy Induced by Neutron Irradiation in Ni Alloys 735P. Al1ia and G.P. Soardo

New Concept of Magnetic Domain Wall Stabilization.. 737W. Simonet

Section 36. SOFT MATERIALS AND DOMAINS

Optimizing the Combination of Magnetic Induction and Yield Strength of Vanadium Permendur byHeat Treatment •• 739

H. C. Fiedler

Kinetic Energy of a Moving Domain Wall in Orthoferrite , .7^0S. Konishi and T. Miyama

Influence of Heat Treatment on Magnetic Properties of a Soft Iron Cobalt Alloy,,.,,,., ...7^1A.J. Moses

An Electron Microscopic Study of the Origin of Coercivity in an Fe-Co-V Alloy 7^3S. Mahajan and K.M, Olsen

Ferromagnetic Behavior of Metallic Glasses , 7^5R.C. Sherwood, E.M, Gyorgy, H.S. Chen, S.D, Ferris, G. Norman and H.J, Leamy

Temperature and Field Dependence of Bloch Wall Thickness Measured by Neutron Small-AngleScatter i ng , 7*»6

0. ScharpfEquation of Motion of a Flexible Domain Wall of Arbitrary Shape., 7**7

W.J. Carr, Jr,Observations of Domain Wall Velocities and Mobilities in YFeO,,.,.. ,.7^9

C. H. Tsang and R.L. White

Calculation of Micromagnetic Structure by a Relaxation Method ,, 751G. R. Henry and B.R. Brown

Magnetic Configuration at a Domain Tip and Its Effect on the Erase Threshold of SmallDomains in Thin Films , , , 753

E.J. Torok

Ferromagnetic Domain Structure of d.h.c.p. Co-Fe Alloys,..,,,, , 755H. J. Leamy, T. Wakiyama and G.Y. Chin

X-Ray Topographic Study of 71° and 109° Magnetic Domain Walls in Iron Garnets Between300 K and 4.2 K 757

A. Mathiot and J.F. Petroff

Section 37. LUNAR AND OTHER MATTER; HARD MAGNETIC MATERIALS

Behavior of the Action Potential of Nitella Clavata Cells in the Presence of Uniform Magnetic

Fields , 759

S. Arajs, Ling-Chia L. Lin and T.E. FarringtonMossbauer and Magnetic Measurements of Iron Phase Distributions in Apollo Lunar Samples ....760

G.P. Huffman and F.C. Schwerer

Simple Models for the Coercivity of Hard Magnetic Materials , .761J. Bernasconi , S. Stra'ssler and R.S. Perkins

Temperature Dependence of Magnetic Hysteresis in MnBi Thin Films , , 763S. Honda, M. Koyama and T. Kusuda

Semihard Magnetic Alloy of Fe-Mn-Ni System 766T. Takahashi and K. Ono

Crystal Transformation and Orientation of Mn-Al-C Hard Magnetic Alloy 768S. Kojima, T. Ohtani, N. Kato, K. Kojima, Y, Sakamoto, I, Konno, M. Tsukahara and T, Kubo

Improvement of Temperature Dependence of Remanence in Ferrite Permanent Magnets 770

K, Haneda, C. Miyakawa and H, Kojima

Section 38., GENERAL INTEREST

Nuclear Ferromagneti sm , 772

A. Abragam ,The Magnetic Properties of Liquid and Solid He 776

R.C. Richardson

Planetary Magneti sm. ,,.., , 781D. J. Stevenson

Direct Measurements of the Spin Contact Density in Magnetic Materials , ,....785N. Benczer-Koller, J.M. Trooster and C.J, Song

ft - Precession Studies of Magnetic Materials , 788W.J. Kossler