The thickness-dependent dynamic magnetic property of Co2FeAl films grown by molecular beam epitaxy

被引：31
|
作者：
Qiao, Shuang [1 ,2 ]
Nie, Shuaihua [1 ]
Zhao, Jianhua [1 ]
Zhang, Xinhui [1 ]
机构：
[1] Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China
[2] Hebei Univ, Coll Phys Sci & Technol, Baoding 071002, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2014年 / 105卷 / 17期
关键词：
TEMPERATURE-DEPENDENCE; CO/COO BILAYERS;
D O I：
10.1063/1.4900792
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Co2FeAl films with different thickness were prepared at different temperature by molecular beam epitaxy. Their dynamic magnetic property was studied by the time-resolved magneto-optical Kerr effect measurements. It is observed that the intrinsic damping factor of Co2FeAl for [100] orientation is not related to the film's thickness and magnetic anisotropy as well as temperature at high-field regime, but increases with structural disorder of Co2FeAl. The dominant contribution from the inhomogeneous magnetic anisotropy is revealed to be responsible for the observed extremely nonlinear and drastic field-dependent damping factors at low-field regime. (C) 2014 AIP Publishing LLC.
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页数：5
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