Volume 71, Number 2, July 2005
|Page(s)||297 - 303|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||17 June 2005|
Lateral length scales in exchange bias
Physics Department, University of California, San Diego La Jolla, CA 92093-0319, USA
2 Angewandte Physik, Universität Duisburg-Essen - 47048 Duisburg, Germany
3 Departamento de Física, Universidad de Oviedo - 33007 Oviedo, Spain
4 Departament de Física Fonamental, Universitat de Barcelona 08028 Barcelona, Catalonia, Spain
Accepted: 20 May 2005
When a ferromagnet is in proximity to an antiferromagnet, lateral length scales such as the respective magnetic domain sizes drastically affect the exchange bias. Bilayers of and either , or are studied using SQUID and spatially resolved MOKE. When the antiferromagnetic domains are larger than or comparable to the ferromagnetic domains, a local, non-averaging exchange bias is observed. This gives rise to unusual and tunable magnetic hysteresis curves.
PACS: 75.70.-i – Magnetic properties of thin films, surfaces, and interfaces / 75.60.-d – Domain effects, magnetization curves, and hysteresis / 75.25.+z – Spin arrangements in magnetically ordered materials (including neutron and spin-polarized electron studies, synchrotron-source X-ray scattering, etc.)
© EDP Sciences, 2005
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