- 专利标题: MICROWAVE-ASSISTED MAGNETIC RECORDING APPARATUS AND METHOD
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申请号: US16524544申请日: 2019-07-29
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公开(公告)号: US20190392862A1公开(公告)日: 2019-12-26
- 发明人: Xiong Liu , Lihong Zhang , PengBoon Khoo
- 申请人: Seagate Technology LLC
- 主分类号: G11B5/596
- IPC分类号: G11B5/596 ; G11B20/10
摘要:
A magnetic recording medium includes a recording surface comprising a first recording layer having a first ferromagnetic resonant frequency and a second recording layer having a second ferromagnetic resonant frequency. The first recording layer is configured for storing user data and the second recording layer configured for storing servo data. A recording head arrangement is configured for microwave-assisted magnetic recording (MAMR) and writing user data to the first recording layer. The recording head arrangement comprises a write pole configured to generate a write magnetic field, and a write-assist arrangement proximate the write pole. The write-assist arrangement is configured to generate a radiofrequency assist magnetic field at a frequency that corresponds to the first ferromagnetic resonant frequency. A reader of the recording head arrangement is configured to read combined signals from the first and second recording layers.
公开/授权文献
- US10755736B2 Microwave-assisted magnetic recording apparatus and method 公开/授权日:2020-08-25
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