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Title: Topological insulator-based high efficiency switching of magnetic unit, method and applications

Patent ·
OSTI ID:1632552

A magneto-electronic device may include: a spin-orbit torque (SOT) generator layer; a magnetic memory layer; and/or sensing electrodes configured to measure a Hall effect of the magnetic memory layer. The SOT generator layer may include topological insulator material, and the magnetic memory layer may include ferromagnetic material with perpendicular magnetic anisotropy. A magneto-electronic device may include: a spin-orbit torque (SOT) generator layer; a first magnetic memory layer on the SOT generator layer; an insulating layer on the first magnetic memory layer; and/or a second magnetic memory layer on the insulating layer. The SOT generator layer may include topological insulator material. The first magnetic memory layer and the second magnetic memory layer may include ferromagnetic material with either perpendicular magnetic anisotropy or in-plane magnetic anisotropy.

Research Organization:
Johns Hopkins Univ., Baltimore, MD (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
SC0012670
Assignee:
The Johns Hopkins University (Baltimore, MD)
Patent Number(s):
10,559,747
Application Number:
15/497,591
OSTI ID:
1632552
Resource Relation:
Patent File Date: 04/26/2017
Country of Publication:
United States
Language:
English

References (7)

Spin hall effect magnetic apparatus, method and applications patent August 2015
Spin logic device and electronic equipment including same patent December 2018
Heavy metal multilayers for switching of magnetic unit via electrical current without magnetic field, method and applications patent February 2018
Method and system for providing a magnetic tunneling junction using spin-orbit interaction based switching and memories utilizing the magnetic tunneling junction patent July 2015
Circuits and devices based on spin hall effect to apply a spin transfer torque with a component perpendicular to the plane of magnetic layers patent June 2017
Spin hall effect magnetic-RAM patent February 2015
Spin current generation with nano-oscillator patent August 2016

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