Invention Grant
- Patent Title: Ferromagnetic laminated film, spin current magnetization rotating element, magnetoresistance effect element, and magnetic memory
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Application No.: US16956802Application Date: 2019-02-26
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Publication No.: US11424404B2Publication Date: 2022-08-23
- Inventor: Yohei Shiokawa , Tomoyuki Sasaki
- Applicant: TDK CORPORATION
- Applicant Address: JP Tokyo
- Assignee: TDK CORPORATION
- Current Assignee: TDK CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JPJP2018-033101 20180227
- International Application: PCT/JP2019/007262 WO 20190226
- International Announcement: WO2019/167929 WO 20190906
- Main IPC: H01L21/02
- IPC: H01L21/02 ; H01L21/00 ; H01L43/04 ; H01L27/22 ; H01L43/10
Abstract:
A ferromagnetic laminated film includes a plurality of first magnetic layers, at least one second magnetic layer, and at least one first non-magnetic layer, in which the first magnetic layers are alternately laminated with the second magnetic layer or the first non-magnetic layer, and a material forming the first magnetic layers is different from a material forming the second magnetic layer, and the first magnetic layers, the first non-magnetic layer, and the second magnetic layer are a material combination in which interface magnetic anisotropy is generated between the first magnetic layer and the first non-magnetic layer, and a material combination in which interface magnetic anisotropy is generated between the first magnetic layer and the second magnetic layer.
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