Highly chemical ordered L11 CoPt (111) films with perpendicular anisotropy grown on glass substrates

被引：14
|
作者：
Yang, Yang [1 ]
Chen, J. S. [1 ]
Chow, G. M. [1 ]
机构：
[1] Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 119260, Singapore
来源：
JOURNAL OF APPLIED PHYSICS | 2011年 / 109卷 / 07期
关键词：
MAGNETIC-ANISOTROPY; DOMAIN-STRUCTURE; THIN-FILMS; MEDIA; ALLOY;
D O I：
10.1063/1.3561115
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In this study, L1(1) CoPt (111) films were deposited on glass substrates at 300 degrees C with observed superlattice (111) and (333) peaks and easy axis distribution of 2 degrees. The magnetic anisotropy constant was in the order of 10(7) erg/cm(3). The effect of CoPt layer thickness on domain structure and magnetic properties was investigated. With increasing film thickness, the squareness was reduced and the nucleation field changed from negative to positive, indicating low impedance to domain wall motion and increased demagnetizing energy. Magnetic force microscopy images demonstrated the magnetic domain structure changed from irregular and large domains to highly interconnected stripes with increasing CoPt layer thickness. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3561115]
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页数：3
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