Freezing field dependence of the exchange bias in uniaxial FeF2-CoPt heterosystems with perpendicular anisotropy

被引：91

作者：

Kagerer, B ^{[1
]}

Binek, C ^{[1
]}

Kleemann, W ^{[1
]}

机构：

[1] Univ Duisburg Gesamthsch, Lab Angew Phys, Fachbereich Phys 10, D-47048 Duisburg, Germany

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2000年 / 217卷 / 1-3期

关键词：

exchange bias; interfaces; Ising-model; ferromagnetism; antiferromagnetism;

D O I：

10.1016/S0304-8853(00)00315-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The exchange bias effect is measured for the first time in FeF2-CoPt heterosystems with perpendicular anisotropy. The exchange field exhibits a strong dependence on the axial freezing held. This behavior is explained in terms of the microscopic spin structure at the interface, which is established on cooling to below T-N. We calculate the dependence of the spin structure on the freezing field within the framework of an Ising model. It takes into account the Zeeman energy as well as an antiferromagnetic exchange coupling between the adjacent layers at the interface. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：139 / 146

页数：8

共 24 条

[1] MAGNETIZATION DIRECTION SWITCHING IN FE/CU(100) EPITAXIAL-FILMS - TEMPERATURE AND THICKNESS DEPENDENCE [J].

ALLENSPACH, R ;

BISCHOF, A .

PHYSICAL REVIEW LETTERS, 1992, 69 (23) :3385-3388

[2]

BOROVIKROMANOV AS, 1960, SOV PHYS JETP-USSR, V11, P786

[3] Exchange-induced enhancement of TC in Co1-x(EuS)x macroscopic ferrimagnets [J].

Fumagalli, P ;

Schirmeisen, A ;

Gambino, RJ .

PHYSICAL REVIEW B, 1998, 57 (22) :14294-14298

[4] Long-range exchange bias across a spacer layer [J].

Gokemeijer, NJ ;

Ambrose, T ;

Chien, CL .

PHYSICAL REVIEW LETTERS, 1997, 79 (21) :4270-4273

[5] Simple mechanism for a positive exchange bias [J].

Hong, TM .

PHYSICAL REVIEW B, 1998, 58 (01) :97-100

[6]

KAINZ S, UNPUB

[7] Calculations of exchange bias in thin films with ferromagnetic/antiferromagnetic interfaces [J].

Koon, NC .

PHYSICAL REVIEW LETTERS, 1997, 78 (25) :4865-4868

[8] Simple full micromagnetic model of exchange bias behavior in ferro/antiferromagnetic layered structures [J].

Koon, NC .

JOURNAL OF APPLIED PHYSICS, 1997, 81 (08) :4982-4982

[9] BLOCKING OF LOGARITHMIC TEMPORAL RELAXATION OF MAGNETIC REMANENCE BY PIEZOMAGNETICALLY INDUCED DOMAINS IN FE1-XZNXF2 [J].

KUSHAUER, J ;

BINEK, C ;

KLEEMANN, W .

JOURNAL OF APPLIED PHYSICS, 1994, 75 (10) :5856-5858

[10] MAGNETIC AND STRUCTURAL-PROPERTIES OF CO/PT MULTILAYERS [J].

LIN, CJ ;

GORMAN, GL ;

LEE, CH ;

FARROW, RFC ;

MARINERO, EE ;

DO, HV ;

NOTARYS, H ;

CHIEN, CJ .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1991, 93 :194-206

← 1 2 3 →