Invention Grant
US08345380B2 Spin torque oscillator and magnetic recording head and magnetic recording device mounted with the spin torque oscillator
有权
旋转扭矩振荡器和磁记录头以及安装有自旋扭矩振荡器的磁记录装置
- Patent Title: Spin torque oscillator and magnetic recording head and magnetic recording device mounted with the spin torque oscillator
- Patent Title (中): 旋转扭矩振荡器和磁记录头以及安装有自旋扭矩振荡器的磁记录装置
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Application No.: US13208384Application Date: 2011-08-12
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Publication No.: US08345380B2Publication Date: 2013-01-01
- Inventor: Yo Sato , Keiichi Nagasaka , Masato Shiimoto , Masato Matsubara
- Applicant: Yo Sato , Keiichi Nagasaka , Masato Shiimoto , Masato Matsubara
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Mattingly & Malur, PC
- Priority: JP2010-208190 20100916
- Main IPC: G11B5/127
- IPC: G11B5/127
Abstract:
The present invention provides a spin torque oscillator that can realize stable oscillation and has high reliability. A laminated structure including a first magnetic layer 1 having a bcc crystal structure and having in-plane magnetic anisotropy and a second magnetic layer 2 having perpendicular magnetic anisotropy laminated on the first magnetic layer 1 and including a multilayer film of Co and Ni is used.
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