Master for magnetic pattern transfer and its manufacturing method, magnetic pattern transfer method

摘要

Sufficiently increase the writing efficiency when transferring a magnetic pattern to a magnetic recording medium. A slave (10) to which a uniform magnetization is applied and a master (20) to which a uniform orientation of magnetization are applied are prepared. Next, the master (20) in this state and the magnetic recording layer (12) of the slave (10) are brought into close contact with each other. When the bias magnetic field (B3) is applied to the master (20) as described above in this state, the magnetization of the first magnetic material layer (22) is not reversed, and only the magnetization of the second magnetic material layer (23) is reversed. Is inverted, so that a recording magnetic field (B4) is generated, as shown in FIG. 4C. Therefore, after removing the bias magnetic field (B3) and the master (20), the magnetization in the non-inverted region (12B) is set to the initial magnetization (M0), and the magnetization in the inverted region (12A) is rewritten in the opposite direction. Can be (M1)