Positive exchange bias in a Ni80Fe20/NixFe1-xO thin-film bilayer

被引:13
作者
Lin, K. -W [1 ]
Tzeng, Y. -M [1 ]
Guo, Z. -Y. [1 ]
Liu, C-Y. [1 ]
van Lierop, J. [2 ]
机构
[1] Natl Chung Hsing Univ, Dept Mat Engn, Taichung 402, Taiwan
[2] Univ Manitoba, Dept Phys & Astron, Winnipeg, MB, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
Exchange bias; Thin-film; Ion-beam sputter deposition;
D O I
10.1016/j.jmmm.2006.02.021
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We have measured positive exchange bias in a Ni80Fe20/NixFe1-xO thin-film nanocrystallite system. A series of solid solution NixFe1-xO 40 nm thick films capped with 25 nm thick Ni80Fe20 were deposited using a range of %O-2/Ar bombardment energies (i.e. End-Hall voltages). Proper tuning of the deposition conditions results in a Ni80Fe20/NixFe1-xO (30% O-2/Ar) based bilayer that exhibits a positive exchange bias loop shift of H-ex similar to 60 Oe at 150 K. (C) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:E124 / E127
页数:4
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