Influence of Ti on microstructure and magnetic properties of FePt granular films

被引：0
|
作者：
Xu Jialing [1 ]
Sun Huiyuan [1 ]
Yang Sujuan [1 ]
Feng Shunzhen [1 ]
Su Zhenfang [1 ]
Hu Jun [1 ]
Yu Hongyun [1 ]
机构：
[1] Hebei Normal Univ, Coll Phys Sci & Informat Technol, Shijiazhuang 050016, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2006年 / 35卷
关键词：
FePt/Ti granular films; facing-target magnetron sputtering system; magnetic recording media;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
FePt (30 nm)/Ti (t nm) granular films were prepared by DC facing-target magnetron sputtering system onto glass substrates at room temperature and subsequently in situ annealed in vacuum. The influence of Ti on microstructural and magnetic properties of the FePt films was investigated in detail. X-ray diffraction (XRD) patterns indicate that the films deposited onto glass substrates with the addition of Ti layer form a ternary FePtTi alloy possessing L1(0) texture. The film with perfectly ordered L1(0) structure was obtained at t = 5 mn and T-a = 500 C, which had ultra-small grain size and unique magnetic proper-ties. The maximum coercivity and saturation magnetization reached more than 6.7x7.96x10(4) A.m(-1) and 620emu/cc, respectively. The small switching field distribution (SFD) was obtained. The results showed that this system might be applicable to ultra-high-density magnetic recording media.
引用
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页码：137 / 140
页数：4
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