Magnetism of ultrathin FeCo (001) films on GaAs(001)

被引：95
|
作者：
Dumm, M
Zölfl, M
Moosbühler, R
Brockmann, M
Schmidt, T
Bayreuther, G
机构：
[1] Inst. F. Experimentelle Angew. P., Universität Regensburg
来源：
JOURNAL OF APPLIED PHYSICS | 2000年 / 87卷 / 09期
关键词：
D O I：
10.1063/1.373371
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Epitaxial Fe34Co66 films in a thickness range from 3 to 100 monolayers (MLs) were grown by molecular beam epitaxy on GaAs(001) at room temperature. The growth was characterized by reflection high energy electron diffraction and x-ray diffraction. The magnetic properties were investigated by alternating gradient magnetometry magneto-optic Kerr effect, and superconducting quantum interference device magnetometry. The films show a strong interface-induced uniaxial in-plane anisotropy with the easy axis along [110]. In addition, the fourfold anisotropy coefficient changes sign around 6 ML i.e., the easy axis of the fourfold anisotropy switches from < 110 > to < 100 > with decreasing thickness. (C) 2000 American Institute of Physics. [S0021-8979(00)31408-6].
引用
收藏
页码：5457 / 5459
页数：3
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