THEORY OF THE EXCHANGE COUPLING IN MAGNETIC METALLIC MULTILAYERS

被引：54

作者：

DALBUQUERQUE, J

FERREIRA, MS

MUNIZ, RB

机构：

[1] Instituto de Física, Universidade Federal Fluminense, Niterói, RJ

来源：

PHYSICAL REVIEW B | 1994年 / 49卷 / 22期

关键词：

D O I：

10.1103/PhysRevB.49.16062

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Existing theories of the oscillatory exchange coupling in magnetic metallic multilayers are reconciled within a common approach. It is shown that Ruderman-Kittel-Kasuya-Yosida-type theories and full-confinement quantum-well results are obtained as limiting cases. Numerically useful and model-independent closed-form expressions for the exchange coupling across a nonmagnetic spacer are obtained in terms of the one-electron propagators. The theory can be extended to deal with nonmagnetic alloy spacers and it is argued that the existence of disorder in the spacer may lead to significant reduction of the interlayer coupling.

引用

收藏

页码：16062 / 16065

页数：4

相关论文

共 29 条

[1] INTRINSIC BIQUADRATIC CONTRIBUTION TO INTERLAYER COUPLING IN MAGNETIC LAYERED STRUCTURES [J].

BARNAS, J .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1993, 123 (1-2) :L21-L24

[2] INTERLAYER EXCHANGE COUPLING - A UNIFIED PHYSICAL PICTURE [J].

BRUNO, P .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1993, 121 (1-3) :248-252

[3] PHYSICAL-MECHANISM OF OSCILLATORY INTERLAYER EXCHANGE COUPLING [J].

BRUNO, P .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1992, 116 (1-2) :L13-L17

[4] RUDERMAN-KITTEL THEORY OF OSCILLATORY INTERLAYER EXCHANGE COUPLING [J].

BRUNO, P ;

CHAPPERT, C .

PHYSICAL REVIEW B, 1992, 46 (01) :261-270

[5]

BRUNO P, 1991, PHYS REV LETT, V67, P2592, DOI 10.1103/PhysRevLett.67.2592

[6] OSCILLATORY COUPLING BETWEEN FERROMAGNETIC LAYERS SEPARATED BY A NONMAGNETIC METAL SPACER [J].

BRUNO, P ;

CHAPPERT, C .

PHYSICAL REVIEW LETTERS, 1991, 67 (12) :1602-1605

[7] EVIDENCE FOR OSCILLATIONS IN THE INTERLAYER COUPLING OF FE FILMS ACROSS CR FILMS FROM SPIN-WAVES AND M(H) CURVES [J].

DEMOKRITOV, S ;

WOLF, JA ;

GRUNBERG, P .

EUROPHYSICS LETTERS, 1991, 15 (08) :881-886

[8]

EDWARDS DM, 1991, PHYS REV LETT, V67, P1476, DOI 10.1103/PhysRevLett.67.1476

[9] OSCILLATIONS IN THE EXCHANGE COUPLING OF FERROMAGNETIC LAYERS SEPARATED BY A NONMAGNETIC METALLIC LAYER [J].

EDWARDS, DM ;

MATHON, J ;

MUNIZ, RB ;

PHAN, MS .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1991, 3 (26) :4941-4958

[10] OSCILLATIONS OF THE EXCHANGE IN MAGNETIC MULTILAYERS AS AN ANALOG OF DEHAAS-VANALPHEN EFFECT [J].

EDWARDS, DM ;

MATHON, J ;

MUNIZ, RB ;

PHAN, MS .

PHYSICAL REVIEW LETTERS, 1991, 67 (04) :493-496