Invention Grant
- Patent Title: Method and system for providing a magnetic junction usable in spin transfer torque applications and including a magnetic barrier layer
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Application No.: US15177138Application Date: 2016-06-08
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Publication No.: US09917249B2Publication Date: 2018-03-13
- Inventor: Xueti Tang , Dmytro Apalkov , Gen Feng , Mohamad Towfik Krounbi
- Applicant: Samsung Electronics Co., LTD.
- Applicant Address: KR Gyeonggi-Do
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR Gyeonggi-Do
- Agency: Convergent Law Group LLP
- Main IPC: H01L27/22
- IPC: H01L27/22 ; H01L43/10 ; H01L43/02 ; H01L43/08 ; H01L43/12 ; G11C11/16

Abstract:
A magnetic junction and method for providing the magnetic junction are described. The magnetic junction resides on a substrate and is usable in a magnetic device. The magnetic junction includes free and pinned layers separated by a nonmagnetic spacer layer. The free layer is switchable between stable magnetic states when a write current is passed through the magnetic junction. The pinned layer has a pinned layer perpendicular magnetic anisotropy energy greater than a pinned layer out-of-plane demagnetization energy. The pinned layer includes a high perpendicular magnetic anisotropy (PMA) layer including at least one nonmagnetic component, a magnetic layer and a magnetic barrier layer between the high PMA layer and the magnetic layer. The magnetic barrier layer includes Co and at least one of Ta, W and Mo. The magnetic barrier layer is for blocking diffusion of the nonmagnetic component of the high PMA layer.
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