Perpendicular magnetic anisotropy of Pt/Co2FeAl0.5Si0.5/MgAl2O4 trilayers

被引：17
|
作者：
Wu, Yong [1 ,2 ]
Xu, Xiaoguang [1 ]
Li, Lu [1 ]
Wang, Zhicheng [1 ]
Miao, Jun [1 ]
Jiang, Yong [1 ]
机构：
[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
[2] Univ Sci & Technol Beijing, State Key Lab Adv Met, Sch Met & Ecol Engn, Beijing 100083, Peoples R China
来源：
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2016年 / 213卷 / 10期
基金：
美国国家科学基金会;
关键词：
half-metallic ferromagnet; MgAl2O4; perpendicular magnetic anisotropy; INPLANE; TORQUE;
D O I：
10.1002/pssa.201600160
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Perpendicular magnetic anisotropy ( PMA) has been achieved in Co2FeAl0.5Si0.5 ( CFAS) based trilayers with MgAl2O4 ( MAO) as oxide layer. It was found that the PMA is sensitive to the annealing conditions, the thicknesses of MAO ( t(MAO)) and CFAS ( t(CFAS)) layers. A strong PMA can be observed in the Pt/CFAS/MAO structure after 340 degrees C annealing and maintained as high as 400 degrees C. For a fixed CFAS thickness (t(CFAS) - 1.5 nm), there is a narrow range of tMAO to keep the PMA in this structure. Oxidation at the CFAS/MAO interface plays a very significant role to the PMA, which can be controlled by tuning t(MAO) for fixed annealing temperature and t(CFAS). (C) 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码：2780 / 2784
页数：5
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