Structure and Magnetic Properties of Graded (001)-Oriented FePt Films Prepared by Magnetron Sputtering and Rapid Thermal Annealing

被引：0
作者：
Weiwei Yang
Yongsheng Yu
Ming Feng
Ji Li
Haibo Li
机构：
[1] Jilin Normal University,Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education
[2] Harbin Institute of Technology,MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering
来源：
Journal of Superconductivity and Novel Magnetism | 2018年 / 31卷
关键词：
FePt; Thin film; Coercivity; Texture;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
L10-FePt/[Fe/Pt]27 multilayer films were prepared on (100)-oriented single-crystal MgO substrates. Structural analysis indicates epitaxial growth of the L10-FePt films during high-temperature deposition. The room-temperature-deposited [Fe/Pt]27 multilayer exhibits the fcc-FePt structure grown epitaxially on the L10-FePt base layer. The degree of chemical order and thereby the anisotropy of the top layer has been controlled by varying the temperature of a post-deposition annealing process. Compared with the as-deposited films, coercivities of the films annealed below 400 ∘C are substantially decreased by introducing the formation of a graded anisotropy in the partially ordered top layer. Coercivities decrease for annealing temperatures that are greater than 400 ∘C due to improved ordering of the top layer.
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页码：3251 / 3254
页数：3
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