Invention Grant
- Patent Title: Voltage-controlled magnetic anisotropy memory device including an anisotropy-enhancing dust layer and methods for forming the same
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Application No.: US17341119Application Date: 2021-06-07
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Publication No.: US11887640B2Publication Date: 2024-01-30
- Inventor: Derek Stewart , Alan Kalitsov , Bhagwati Prasad
- Applicant: WESTERN DIGITAL TECHNOLOGIES, INC.
- Applicant Address: US CA San Jose
- Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
- Current Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
- Current Assignee Address: US CA San Jose
- Agency: THE MARBURY LAW GROUP PLLC
- Main IPC: G11C16/04
- IPC: G11C16/04 ; G11C11/16 ; H01F10/32 ; H10B61/00 ; H10N50/10 ; H10N50/80 ; H10N50/85

Abstract:
A magnetoelectric memory device includes a magnetic tunnel junction located between a first electrode and a second electrode. The magnetic tunnel junction includes a reference layer, a nonmagnetic tunnel barrier layer, a free layer, and a dielectric capping layer. At least one layer that provides voltage-controlled magnetic anisotropy is provided within the magnetic tunnel junction, which may include a pair of nonmagnetic metal dust layers located on, or within, the free layer, or a two-dimensional metal compound layer including a compound of a nonmagnetic metallic element and a nonmetallic element.
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