On the mechanism of irradiation-enhanced exchange bias

被引：19

作者：

Poppe, S ^{[1
]}

Fassbender, J ^{[1
]}

Hillebrands, B ^{[1
]}

机构：

[1] Tech Univ Kaiserslautern, Fachbereich Phys & Forsch Schwerpunkt MINAS, D-67663 Kaiserslautern, Germany

来源：

EUROPHYSICS LETTERS | 2004年 / 66卷 / 03期

关键词：

D O I：

10.1209/epl/i2003-10223-y

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

By means of layer-resolved ion irradiation, the mechanisms involved in the irradiation-driven modifications of the exchange bias effect in NiFe/FeMn bilayers have been investigated. It is shown that not only the locations of the defects but also the magnetic coupling between both layers during the irradiation process is of crucial importance. This requires an extension of current models accounting for defects in exchange bias systems.

引用

收藏

页码：430 / 434

页数：5

相关论文

共 12 条

[1] Defect-modified exchange bias [J].

Kim, JV ;

Stamps, RL .

APPLIED PHYSICS LETTERS, 2001, 79 (17) :2785-2787

[2] Exchange-bias systems with compensated interfaces [J].

Kiwi, M ;

Mejía-López, J ;

Portugal, RD ;

Ramírez, R .

APPLIED PHYSICS LETTERS, 1999, 75 (25) :3995-3997

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

Koon, NC .

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

[4] RANDOM-FIELD MODEL OF EXCHANGE-ANISOTROPY AT ROUGH FERROMAGNETIC-ANTIFERROMAGNETIC INTERFACES [J].

MALOZEMOFF, AP .

PHYSICAL REVIEW B, 1987, 35 (07) :3679-3682

[5] NEW MAGNETIC ANISOTROPY [J].

MEIKLEJOHN, WH ;

BEAN, CP .

PHYSICAL REVIEW, 1956, 102 (05) :1413-1414

[6] Diluted antiferromagnets in exchange bias:: Proof of the domain state model [J].

Miltényi, P ;

Gierlings, M ;

Keller, J ;

Beschoten, B ;

Güntherodt, G ;

Nowak, U ;

Usadel, KD .

PHYSICAL REVIEW LETTERS, 2000, 84 (18) :4224-4227

[7] Local manipulation and reversal of the exchange bias field by ion irradiation in FeNi/FeMn double layers [J].

Mougin, A ;

Mewes, T ;

Jung, M ;

Engel, D ;

Ehresmann, A ;

Schmoranzer, H ;

Fassbender, J ;

Hillebrands, B .

PHYSICAL REVIEW B, 2001, 63 (06)

[8] Domain state model for exchange bias.: I.: Theory -: art. no. 014430 [J].

Nowak, U ;

Usadel, KD ;

Keller, J ;

Miltényi, P ;

Beschoten, B ;

Güntherodt, G .

PHYSICAL REVIEW B, 2002, 66 (01) :1-9

[9] Coupling mechanisms in exchange biased films (invited) [J].

Schulthess, TC ;

Butler, WH .

JOURNAL OF APPLIED PHYSICS, 1999, 85 (08) :5510-5515

[10] Exchange bias in FexZn1-xF2/Co bilayers [J].

Shi, HT ;

Lederman, D ;

Fullerton, EE .

JOURNAL OF APPLIED PHYSICS, 2002, 91 (10) :7763-7765