Magnetic and magneto-optical properties of CoPtM (M=Re, Ru) alloy films for a new magneto-optical recording material

被引:3
|
作者
Takeda, Y [1 ]
Umezawa, T [1 ]
Chiba, K [1 ]
Shoji, H [1 ]
Takahashi, M [1 ]
机构
[1] TOHOKU UNIV,DEPT ELECTR ENGN,SENDAI,MIYAGI 98077,JAPAN
关键词
D O I
10.1016/0304-8853(95)00473-4
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
CoPtM (M = Re, Ru) ternary alloy films have been investigated as new magneto-optical materials for blue laser recording. The CoPtRe and CoPtRu alloy films were prepared by sputtering without a heating process, and exhibited good perpendicular magnetic anisotropy and magnetic hysteresis loop squareness, For the magneto-optical properties, the figure of merit for the CoPtRe alloy film with less than 15 at% Re at lambda < 530 nm is shown to be superior to that for TbFeCo amorphous film and inferior 0-4 dB to that of Co/Pt multilayers.
引用
收藏
页码:243 / 252
页数:10
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