Invention Grant
- Patent Title: Domain wall moving element, domain wall moving type magnetic recording element and magnetic recording array
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Application No.: US17290118Application Date: 2018-11-06
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Publication No.: US11894172B2Publication Date: 2024-02-06
- Inventor: Tetsuhito Shinohara
- Applicant: TDK CORPORATION
- Applicant Address: JP Tokyo
- Assignee: TDK CORPORATION
- Current Assignee: TDK CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- International Application: PCT/JP2018/041162 2018.11.06
- International Announcement: WO2020/095360A 2020.05.14
- Date entered country: 2021-04-29
- Main IPC: H01F10/32
- IPC: H01F10/32 ; H10N50/80 ; H10N50/10 ; H01L29/82 ; H10B99/00 ; H10N50/85 ; H01L27/105 ; H10B61/00

Abstract:
A domain wall moving type magnetic recording element includes: a domain wall moving layer in which first layers containing a rare earth metal and second layers containing a transition metal are alternately stacked in a first direction; and a first electrode and a second electrode which face the domain wall moving layer and are arranged to be away from each other. The domain wall moving layer has SOT suppression parts which are positioned in one of interfaces between the first layers and the second layers and contain a non-magnetic metal. The SOT suppression parts are locally distributed at the interface.
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