Ordering enhancement of Cu underlayer on CoPt thin films

被引：17
|
作者：
Liao, WM [1 ]
Lin, YP [1 ]
Yuan, FT [1 ]
Chen, SK [1 ]
机构：
[1] Feng Chia Univ, Dept Mat Sci, Taichung 407, Taiwan
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 272卷
关键词：
Cu underlayer; ordering enhancements; CoPt;
D O I：
10.1016/j.jmmm.2003.12.900
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have studied the Cu underlayer effect using CoPt (90 nm)/Cu (10 nm) films. For both the bi-layer CoPt/Cu and the single-layer CoPt samples annealed at 650degreesC for 10 min, the former exhibits stronger X-ray diffraction peaks of ordered CoPt phase. The coercivity of the CoPt/Cu film is about two times as large as the single-layer CoPt. The higher coercivity can be attributed to the ordering enhancement by Cu underlayer. The deltaM value of CoPt/Cu film is 60% smaller than that of single-layer CoPt. It appears that Cu underlayer significantly decreases exchange coupling in the CoPt/Cu film. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：2175 / 2177
页数：3
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