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Magnetic recording medium using a perpendicular magnetic film having a tBr not exceeding one-fifth of a tBr of an in-plane magnetic film
Magnetic recording medium using a perpendicular magnetic film having a tBr not exceeding one-fifth of a tBr of an in-plane magnetic film
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机译:使用垂直磁性膜的磁性记录介质,该垂直磁性膜的tBr不超过面内磁性膜的tBr的五分之一
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摘要
A magnetic recording medium is provided. The magnetic recording medium comprises an in-plane magnetic film used for recording, and a perpendicular magnetic film formed on the in-plane magnetic film. The in-plane magnetic film has a magnetization easy axis in an in-plane direction. The perpendicular magnetic film has a magnetization easy axis oriented in a direction perpendicular to the magnetization easy axis of the in-plane magnetic film. A tBr (a product of a thickness and a residual magnetization) of the perpendicular magnetic film is set so as not to exceed one-fifth of a tBr of the in-plane magnetic film at the maximum.
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