Granular Co3Pt Thin Films With Perpendicular Hard Magnetic Properties for Perpendicular Magnetic Recording Media

被引：4
|
作者：
Chen, S. C. [1 ]
Kuo, P. C. [2 ]
Hsu, S. L. [2 ]
Lin, G. P. [2 ]
Ou, S. L. [2 ]
Sun, T. H. [1 ]
机构：
[1] Ming Chi Univ Technol, Dept Mat Engn, Taipei 243, Taiwan
[2] Natl Taiwan Univ, Inst Mat Sci & Engn, Taipei 106, Taiwan
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2009年 / 45卷 / 05期
关键词：
Granular Co3Pt nano-grains; perpendicular coercivity; perpendicular magnetic recording media; perpendicular squareness; MICROSTRUCTURE; COPT;
D O I：
10.1109/TMAG.2009.2016446
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The granular hep Co-3 Pt nano-grains with large perpendicular coercivity (Hc(perpendicular to)) of 3800 Oe and high perpendicular squareness (S-perpendicular to) of 0.93 can be achieved by deposited 14 nm thickness of Co3Pt magnetic layer onto the Pt underlayer with thickness of 200 nm and annealing at low temperature of 300 degrees C in a vacuum of 1 mTorr. It is found that the oxygen atoms would diffuse into Co3Pt layer through inter-grains to isolate Co3Pt grains and prevent grain growth that will decrease inter-grains interaction and enhance recording density of the magnetic film. This film revealed its prominent potential to be applied as perpendicular magnetic recording media for ultra high-density recording.
引用
收藏
页码：2280 / 2283
页数：4
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