DocumentCode :
3602557
Title :
Film Thickness Gradient-Induced Magnetic Anisotropy and Ferromagnetic Resonance in Fe56Co24B20 Amorphous Films Prepared by Pulse Laser Deposition
Author :
Chenchen Wu ; Yao Huang ; Yao Cui ; Zukun Shen ; Yu Ma ; Shiming Xie ; Honglei Du ; Xiaoyang Gao ; Shandong Li
Author_Institution :
Key Lab. of Photonics Mater. & Technol., Univ. of Shandong, Qingdao, China
Volume :
51
Issue :
11
fYear :
2015
Firstpage :
1
Lastpage :
3
Abstract :
Fe56Co24B20 amorphous films with a large thickness gradient were prepared by pulse laser deposition via moving the sample shutter. The film thickness is varied from 274 to 28.7 nm for a sample with 25 mm in length. The thickness gradient gives rise to a well-defined uniaxial magnetic anisotropy (UMA) with the hard-axis along the direction of thickness gradient. A gradually increased UMA field HK was induced from 110 to 245 Oe along the thickness gradient direction by the interface stress. As a result, the ferromagnetic resonance frequencies fFMR increase from 3.79 to 5.76 GHz with the film thinning.
Keywords :
amorphous magnetic materials; boron alloys; cobalt alloys; ferromagnetic resonance; interface magnetism; iron alloys; magnetic anisotropy; metallic thin films; pulsed laser deposition; Fe56Co24B20; amorphous film preparation; ferromagnetic resonance frequencies; film thickness gradient-induced magnetic anisotropy; interface stress; pulse laser deposition; uniaxial magnetic anisotropy; Films; Magnetic resonance; Magnetoelectric effects; Perpendicular magnetic anisotropy; Saturation magnetization; High-frequency soft magnetic films; magnetic anisotropy; pulse laser deposition; thickness-gradient films;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.2015.2437912
Filename :
7113865
Link To Document :
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