Microstructures and magnetic properties of L11 CoPt thin films with additions of SiO2 and MgO

被引：6
|
作者：
Sun, An-Cheng [1 ]
Huang, Chuan-Fa [1 ]
Yuan, F. T. [2 ]
Hsu, Jen-Hwa [2 ]
机构：
[1] Yuan Ze Univ, Dept Chem Engn & Mat Sci, Chungli 32003, Taiwan
[2] Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan
来源：
THIN SOLID FILMS | 2013年 / 531卷
关键词：
CoPt; L1(1) phase; Thin films; Magnetic anisotropy; Microstructure; Magnetic properties; PERPENDICULAR RECORDING MEDIA; ALLOY; ORDER; RU;
D O I：
10.1016/j.tsf.2013.01.033
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of oxide on the microstructures and magnetic properties of L1(1) CoPt thin films were studied by adding SiO2 and MgO into CoPt thin films. The magnetic films were prepared by sputtering on MgO(111) substrates. SiO2 is found to segregate at the CoPt grain boundary, hindering the formation of L1(1) phase and degrading the perpendicular magnetic properties. Relatively, MgO nanoparticles precipitate in the CoPt matrix and stabilize the L1(1) phase. The high perpendicular magnetic anisotropy is well preserved even with a large MgO content in L1(1) CoPt-MgO composite film. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：476 / 480
页数：5
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