Effect of a NiO capping layer on the temperature dependence of the interlayer coupling in Co/Pt multilayer with perpendicular anisotropy

被引：1
作者：
Zhang, F. [1 ]
Wen, F. S. [1 ]
Li, L. [1 ]
Wang, N. [1 ]
Han, X. Y. [1 ]
Lu, Y. F. [2 ]
Liu, Z. Y. [1 ]
Xu, B. [1 ]
Yu, D. L. [1 ]
He, J. L. [1 ]
Tian, Y. J. [1 ]
机构：
[1] Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China
[2] NW Inst Nonferrous Met Res, Xian 710016, Peoples R China
来源：
THIN SOLID FILMS | 2011年 / 519卷 / 16期
关键词：
Magnetic multilayer; Perpendicular magnetic anisotropy; Antiferromagnetic materials; Ferromagnetic-antiferromagnetic transition; SPIN-VALVES; EXCHANGE-BIAS; PERIOD;
D O I：
10.1016/j.tsf.2011.03.055
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of an ultra thin NiO(11 angstrom) capping layer on the temperature dependence of the interlayer coupling of a [Pt(26.5 angstrom)/Co(4 angstrom)](3) multilayer with perpendicular anisotropy has been investigated. In the presence of the NiO(11 angstrom) capping layer, the interlayer coupling between the Co layers has been observed to demonstrate interesting temperature-dependent transitions. Only the antiferromagnetic (AF) interlayer coupling exists at T >= 270 K. With the decrease of temperature, the coexistence of ferromagnetic (FM) and antiferromagnetic interlayer coupling is observed in the temperature range of 220 K <= T <= 270 K. When the temperature is lower than 220 K. only the ferromagnetic interlayer coupling exists. The temperature-dependent polarization of the Pt layers can be one of the origins for the observed AF-to-FM transitions. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：5596 / 5599
页数：4
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