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

页码：2780 / 2784

页数：5

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