Exchange biasing and interlayer coupling in Co/Pt/Co/CoO multilayers with perpendicular anisotropy

被引：6
|
作者：
Zhang, F. [1 ]
Liu, Z. Y. [2 ]
Wen, F. S. [2 ]
Li, L. [3 ]
Wang, P. W. [3 ]
Li, X. C. [1 ]
Ming, X. B. [1 ]
机构：
[1] Tianjin Polytech Univ, Dept Phys, Tianjin 300387, Peoples R China
[2] Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China
[3] Northwest Inst Nonferrous Met Res, Xian 710016, Peoples R China
来源：
THIN SOLID FILMS | 2017年 / 623卷
关键词：
Exchange biasing; Blocking temperature; CoO thickness; Interlayer coupling; MAGNETIC-ANISOTROPY; BILAYERS; SENSORS; MEMORY;
D O I：
10.1016/j.tsf.2016.12.052
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Investigations have been performed on exchange biasing and interlayer coupling in the Co/Pt/Co/CoO multilayers with perpendicular anisotropy. We have observed the asymmetry of the magnetization reversal of the top Co layer in contact with CoO layer and the shifting EHE loops of the bottom Co layer, which could be ascribed to the competition between the interfacial exchange biasing of the top Co layer and interlayer coupling between Co layers across the Pt layer. Due to other oxide phases observed in CoO layer, non-stoichiometric structure of CoO lowers the blocking temperature for the exchange biasing systems. The blocking temperature also depends on the CoO thickness and we observed lower blocking temperature for the thinner CoO layer. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：102 / 109
页数：8
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