Invention Grant
US07625643B2 Magnetic recording medium, magnetic storage apparatus and recording method 失效
磁记录介质,磁存储装置及记录方法

Magnetic recording medium, magnetic storage apparatus and recording method
Abstract:
A magnetic recording medium is provided with a first magnetic layer, a nonmagnetic coupling layer provided on the first magnetic layer, and a second magnetic layer provided on the nonmagnetic coupling layer. The first and second magnetic layers are exchange-coupled, and have magnetization directions which are mutually parallel in a state where no external magnetic field is applied thereto, and the first magnetic layer switches the magnetization direction thereof before the second magnetic layer in response to a recording magnetic field which switches the magnetization directions of the first and second magnetic layers.
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