SPIN-ORBIT TORQUE-TYPE MAGNETIZATION ROTATION ELEMENT, SPIN-ORBIT TORQUE-TYPE MAGNETORESISTANCE EFFECT ELEMENT, AND MAGNETIC MEMORY

Title:

SPIN-ORBIT TORQUE-TYPE MAGNETIZATION ROTATION ELEMENT, SPIN-ORBIT TORQUE-TYPE MAGNETORESISTANCE EFFECT ELEMENT, AND MAGNETIC MEMORY

Document Type and Number:

WIPO Patent Application WO/2019/167575

Kind Code:

A1

Abstract:

This spin-orbit torque-type magnetization rotation element comprises a spin-orbit torque wire that extends in a first direction, and a first ferromagnetic layer that is layered on the spin-orbit torque wire. The spin-orbit torque wire contains a metal oxide such that the electrical conductivity characteristics thereof exhibit metallic behavior with respect to temperature. With reference to the center of the spin-orbit torque wire in the thickness direction, the oxygen concentration on the first ferromagnetic layer side thereof and that on the side opposite the first ferromagnetic layer are asymmetric to each other.

Inventors:

ASHIDA TAKUYA (JP)
SHIOKAWA YOHEI (JP)
SASAKI TOMOYUKI (JP)

Application Number:

PCT/JP2019/004188

Publication Date:

September 06, 2019

Filing Date:

February 06, 2019

Export Citation:

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Assignee:

TDK CORP (JP)

International Classes:

H01L29/82; H01L21/8239; H01L27/105; H01L43/08

Domestic Patent References:

WO2016159017A1	2016-10-06
WO2017213261A1	2017-12-14

Foreign References:

JP2017059594A	2017-03-23
JP2018022796A	2018-02-08