发明申请
- 专利标题: HARD MAGNET WITH CAP AND SEED LAYERS AND DATA STORAGE DEVICE READ/WRITE HEAD INCORPORATING THE SAME
- 专利标题(中): 具有盖和种子层的硬磁体和数据存储装置读/写头相同
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申请号: US12112671申请日: 2008-04-30
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公开(公告)号: US20090274931A1公开(公告)日: 2009-11-05
- 发明人: Jiaoming Qiu , Yonghua Chen , Xilin Peng , Shaun McKinlay , Eric W. Singleton , Brian W. Karr
- 申请人: Jiaoming Qiu , Yonghua Chen , Xilin Peng , Shaun McKinlay , Eric W. Singleton , Brian W. Karr
- 申请人地址: US MN Shakopee
- 专利权人: Seagate Technology LLC
- 当前专利权人: Seagate Technology LLC
- 当前专利权人地址: US MN Shakopee
- 主分类号: G11B5/733
- IPC分类号: G11B5/733 ; B05D5/12
摘要:
A method including forming a multilayer structure. The multilayer structure includes a seed layer comprising a first component selected from the group consisting of a Pt-group metal, Fe, Mn, Ir and Co. The multilayer structure also includes an intermediate layer comprising the first component and a second component selected from the group consisting of a Pt-group metal, Fe, Mn, Ir and Co. The second component is different than the first component. The multilayer structure further includes a cap layer comprising the first component. The method further includes heating the multilayer structure to an annealing temperature to cause a phase transformation of the intermediate layer. Also a hard magnet including a seed layer comprising a first component selected from the group consisting of a Pt-group metal, Fe, Mn, Ir and Co. The hard magnet also includes a cap layer comprising the first component. The hard magnet further includes an intermediate layer between the seed layer and the cap layer. The intermediate layer includes the first component and a second component selected from the group consisting of a Pt-group metal, Fe, Mn, Ir and Co. The first component is different than the second component. Additionally, a read/write head including the hard magnet.
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