Synthesis and characterization of magnetically exchange coupled Zr2Co11/MgO/FeCo thin films with MgO as diffusion barrier

被引：4
|
作者：
You, Junhua [1 ]
Guo, Yaozu [1 ]
机构：
[1] Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Liaoning, Peoples R China
来源：
MATERIALS LETTERS | 2019年 / 241卷
基金：
中国国家自然科学基金;
关键词：
Magnetic materials; Thin films; X-ray techniques; Magnetic exchange coupling; Zr2Co11; Rare-earth-free permanent magnets; ENERGY; TEMPERATURE; MECHANISM; COBALT;
D O I：
10.1016/j.matlet.2019.01.050
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Zr2Co11 thin films were deposited by sputtering. MgO thin film was deposited on the top of Zr2Co11, followed by FeCo thin film deposition and post-annealing, to have magnetic exchange coupling between Zr2Co11 and FeCo. MgO thin film worked as a diffusion barrier between Zr2Co11 and FeCo during post-annealing. The thickness of FeCo layer was controlled as 4, 8 and 12 nm, respectively. The results showed that when the FeCo thickness was 8 nm, the Zr2Co11/MgO/FeCo showed the optimum magnetic properties, with 58% increased of (BH)(max) over Zr2Co11, which could be attributed to the effective exchange coupling between Zr2Co11 and FeCo. The exchange coupling between Zr2Co11 and FeCo thin film was investigated by Henkel plots. (C) 2019 Elsevier B.V. All rights reserved.
引用
收藏
页码：84 / 87
页数：4
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