Perpendicular magnetic anisotropy in Co2FeAl0.5Si0.5/MgO bottom electrodes for magnetic tunnel junctions

被引：25

作者：

Li, X. Q. ^{[1
]}

Wu, Y. ^{[1
]}

Gao, S. ^{[1
]}

Xu, X. G. ^{[1
]}

Miao, J. ^{[1
]}

Jiang, Y. ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China

来源：

THIN SOLID FILMS | 2013年 / 545卷

基金：

中国国家自然科学基金;

关键词：

Perpendicular magnetic anisotropy; Heusler alloy; Ferromagnetic electrodes; Magnetic tunnel junctions; ROOM-TEMPERATURE; MAGNETORESISTANCE;

D O I：

10.1016/j.tsf.2013.08.064

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Perpendicular magnetic anisotropy (PMA) was achieved in annealed Co2FeAl0.5Si0.5 (CFAS)/MgO-based multilayers with good thermal stability up to 400 degrees C and a large anisotropy energy density K-u over 2.0 x 10(5) J/m(3). The thickness of the full-Heusler CFAS film to maintain PMA is up to 4.8 nm in which the co-existence of disordered A2, ordered B2 and fully ordered L2(1) structures is observed. X-ray photoelectron spectroscopy analysis demonstrates that the origin of the PMA is the hybridization between Co 3d and O 2p orbitals at the CFAS/MgO interface. (C) 2013 Elsevier B.V. All rights reserved.

引用

收藏

页码：503 / 508

页数：6

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