Tuning exchange bias in Ni/FeF2 heterostructures using antidot arrays

被引：24

作者：

Kovylina, M. ^{[1
,2
]}

Erekhinsky, M. ^{[3
]}

Morales, R. ^{[4
]}

Villegas, J. E. ^{[5
]}

Schuller, I. K. ^{[3
]}

Labarta, A. ^{[1
,2
]}

Batlle, X. ^{[1
,2
]}

机构：

[1] Univ Barcelona, Dept Fis Fonamental, E-08028 Barcelona, Catalonia, Spain

[2] Univ Barcelona, Inst Nanociencia & Nanotecnol, E-08028 Barcelona, Catalonia, Spain

[3] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA

[4] Univ Oviedo, Dept Fis, CINN, E-33007 Oviedo, Spain

[5] Univ Paris 11, CNRS Thales, Unite Mixte Phys, F-91405 Orsay, France

来源：

APPLIED PHYSICS LETTERS | 2009年 / 95卷 / 15期

关键词：

FEF2-FE;

D O I：

10.1063/1.3248306

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The transition from positive to negative exchange bias can be systematically tuned with antidot arrays artificially introduced into Ni/FeF2 ferromagnetic/antiferromagnetic heterostructures. These results are a consequence of the energy balance and suggest that the nanostructure plays a key role in the formation of pinned uncompensated spin regions in the antiferromagnetic FeF2 layer. These noninterfacial magnetic moments created at the antidot faces favor the onset of positive exchange bias at lower cooling fields. (C) 2009 American Institute of Physics. [doi:10.1063/1.3248306]

引用

页数：3

共 20 条

[1] Antiferromagnetic domain size and exchange bias [J].