Magneto-optical study of magnetization reversal asymmetry in exchange bias

被引：39
|
作者：
Tillmanns, A. [1 ]
Oertker, S.
Beschoten, B.
Guentherodt, G.
Leighton, C.
Schuller, Ivan K.
Nogues, J.
机构：
[1] Rhein Westfal TH Aachen, Inst Phys 2, D-52056 Aachen, Germany
[2] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA
[3] Univ Autonoma Barcelona, ICREA, Bellaterra 08193, Spain
[4] Univ Autonoma Barcelona, Dept Fis, Bellaterra 08193, Spain
来源：
APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 20期
关键词：
D O I：
10.1063/1.2392283
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The asymmetric magnetization reversal in exchange biased Fe/MnF2 involves coherent (Stoner-Wohlfarth) magnetization rotation into an intermediate, stable state perpendicular to the applied field. We provide here the experimentally tested analytical conditions for the unambiguous observation of both longitudinal and transverse magnetization components using the magneto-optical Kerr effect. This provides a fast and powerful probe of coherent magnetization reversal as well as its chirality. Surprisingly, the sign and asymmetry of the transverse magnetization component of exchange biased, low-anisotropy MnF2 and high-anisotropy FeF2 change with the angle between cooling and measurement fields. (c) 2006 American Institute of Physics.
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页数：3
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