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US09129635B2 Magnetic recording medium with controlled anisotropic fields and magnetic memory device 有权
具有受控各向异性磁场和磁存储器件的磁记录介质

Magnetic recording medium with controlled anisotropic fields and magnetic memory device
Abstract:
There are provided a magnetic recording medium and a magnetic memory device capable of implementing high recording density, in the case of using a microwave assisted magnetic recording (MAMR) scheme. In a magnetic memory device including a magnetic recording medium having a recording film with three or more layers, a recording magnetic pole generating a recording magnetic field, an opposed magnetic pole, a high frequency magnetic field generating element generating a microwave for recording assist, and a magnetic reproduction element, an anisotropic field of a first layer which is a top layer of the recording film is larger than 20 kOe.
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