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

被引：3
|
作者：
Yang, Weiwei [1 ,2 ]
Yu, Yongsheng [1 ,2 ]
Feng, Ming [1 ]
Li, Ji [1 ]
Li, Haibo [1 ]
机构：
[1] Jilin Normal Univ, Key Lab Funct Mat Phys & Chem, Minist Educ, Changchun 130103, Jilin, Peoples R China
[2] Harbin Inst Technol, Sch Chem & Chem Engn, MIIT Key Lab Crit Mat Technol New Energy Convers, Harbin 150001, Heilongjiang, Peoples R China
来源：
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2018年 / 31卷 / 10期
基金：
中国国家自然科学基金;
关键词：
FePt; Thin film; Coercivity; Texture; MEDIA;
D O I：
10.1007/s10948-018-4595-x
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
L1(0)-FePt/[Fe/Pt](27) multilayer films were prepared on (100)-oriented single-crystal MgO substrates. Structural analysis indicates epitaxial growth of the L1(0)-FePt films during high-temperature deposition. The room-temperature-deposited [Fe/Pt](27) multilayer exhibits the fcc-FePt structure grown epitaxially on the L1(0)-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 degrees 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 degrees C due to improved ordering of the top layer.
引用
收藏
页码：3251 / 3254
页数：4
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