Invention Grant
- Patent Title: Permanent magnet comprising an antiferromagnetic layer and a ferromagnetic layer
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Application No.: US16762004Application Date: 2018-09-25
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Publication No.: US11250979B2Publication Date: 2022-02-15
- Inventor: Rachid Hida , Bertrand Delaet , Sophie Giroud
- Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
- Applicant Address: FR Paris
- Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
- Current Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
- Current Assignee Address: FR Paris
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: FR1760619 20171110
- International Application: PCT/FR2018/052354 WO 20180925
- International Announcement: WO2019/092333 WO 20190516
- Main IPC: G01R33/02
- IPC: G01R33/02 ; H01F10/32 ; G01R33/028 ; H01F7/02 ; H01F41/30 ; G01R33/07 ; G01R33/09 ; G01R19/00 ; G01R15/20 ; G01R33/06 ; G01R33/00
Abstract:
A permanent magnet comprising an antiferromagnetic layer and a ferromagnetic layer having a first sub-layer made of a first type of ferromagnetic material, the first type of ferromagnetic material being an at least partially crystallized alloy of iron and cobalt, and a second sub-layer made of a second type of ferromagnetic material, this second type of ferromagnetic material also being an alloy of iron and cobalt in which the proportion of face-centered cubic crystals is less than the proportion of face-centered cubic crystals in the first type of ferromagnetic material.
Public/Granted literature
- US20200265984A1 PERMANENT MAGNET COMPRISING AN ANTIFERROMAGNETIC LAYER AND A FERROMAGNETIC LAYER Public/Granted day:2020-08-20
Information query
