| Issue |
Europhys. Lett.
Volume 71, Number 2, July 2005
|
|
|---|---|---|
| Page(s) | 297 - 303 | |
| Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
| DOI | https://doi.org/10.1209/epl/i2005-10078-2 | |
| Published online | 17 June 2005 | |
Lateral length scales in exchange bias
1
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
Received:
1
April
2005
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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