MEAN-FIELD THEORY FOR SPIN-REORIENTATION PHASE-TRANSITIONS IN MAGNETIC THIN-FILMS

被引：34

作者：

HU, X

KAWAZOE, Y

机构：

[1] Institute for Materials Research, Tohoku University

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.51.311

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A mean-field theory for spin-reorientation phase transitions in magnetic thin films is worked out, solving analytically the relevant differential equation. The role of the exchange stiffness A in the competition between the in-plane shape anisotropy Kv and the perpendicular surface anisotropy Ks is addressed. The spin-reorientation transition from the perpendicular configuration to the in-plane one with increasing thickness is derived. Two different stable spin configurations are presented at large thickness for Ks< AKv and vice versa. The phase transition with temperature is also explored. Asymptotic formulas are given for energy stocked in the film per unit area, which enable one to evaluate the surface anisotropy. © 1995 The American Physical Society.

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页码：311 / 315

页数：5

相关论文

共 23 条

[1] MAGNETIC DOMAINS IN THIN EPITAXIAL CO/AU(111) FILMS [J].

ALLENSPACH, R ;

STAMPANONI, M ;

BISCHOF, A .

PHYSICAL REVIEW LETTERS, 1990, 65 (26) :3344-3347

[2] FERROMAGNETISM OF ULTRATHIN FILMS [J].

BANDER, M ;

MILLS, DL .

PHYSICAL REVIEW B, 1988, 38 (16) :12015-12018

[3] MAGNETIC-ANISOTROPY IN METALLIC ULTRATHIN FILMS AND RELATED EXPERIMENTS ON COBALT FILMS [J].

CHAPPERT, C ;

BRUNO, P .

JOURNAL OF APPLIED PHYSICS, 1988, 64 (10) :5736-5741

[4]

ERICKSON RG, 1990, PHYS REV B, V43, P11527

[5] ANGULAR-DEPENDENCE OF PERPENDICULAR MAGNETIC SURFACE ANISOTROPY AND THE SPIN-REORIENTATION TRANSITION [J].

FRITZSCHE, H ;

KOHLHEPP, J ;

ELMERS, HJ ;

GRADMANN, U .

PHYSICAL REVIEW B, 1994, 49 (22) :15665-15668

[6] MAGNETOOPTICAL ANISOMETRY OF ULTRATHIN COBALT FILMS [J].

GROLIER, V ;

FERRE, J ;

MAZIEWSKI, A ;

STEFANOWICZ, E ;

RENARD, D .

JOURNAL OF APPLIED PHYSICS, 1993, 73 (10) :5939-5941

[7] OBSERVATION OF THICKNESS DEPENDENCE OF MAGNETIC SURFACE ANISOTROPY IN ULTRATHIN AMORPHOUS FILMS [J].

HICKEN, RJ ;

RADO, GT ;

XIAO, G ;

CHIEN, CL .

PHYSICAL REVIEW LETTERS, 1990, 64 (15) :1820-1823

[8] MAGNETIC SURFACE ANISOTROPY IN ULTRATHIN AMORPHOUS FE70B30 AND CO80B20 MULTILAYER FILMS [J].

HICKEN, RJ ;

RADO, GT .

PHYSICAL REVIEW B, 1992, 46 (18) :11688-11696

[9] THEORY OF THE CAPPING EFFECT IN MAGNETIC DOUBLE-FILM SYSTEMS [J].

HU, X ;

KAWAZOE, Y .

PHYSICAL REVIEW B, 1994, 49 (05) :3294-3302

[10] AN ANALYTIC STUDY OF THE CAPPING EFFECT IN MAGNETIC SUPER RESOLUTION MAGNETOOPTIC RECORDING [J].

HU, X ;

YOROZU, T ;

HONMA, S ;

KAWAZOE, Y ;

OHNUKI, S ;

OHTA, N .

IEEE TRANSACTIONS ON MAGNETICS, 1993, 29 (06) :3790-3792