The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 12, 2020

Filed:

Dec. 28, 2016
Applicant:

Tohoku University, Sendai-shi, Miyagi, JP;

Inventors:

Hideo Ohno, Sendai, JP;

Shoji Ikeda, Sendai, JP;

Fumihiro Matsukura, Sendai, JP;

Masaki Endoh, Sendai, JP;

Shun Kanai, Sendai, JP;

Hiroyuki Yamamoto, Shiki, JP;

Katsuya Miura, Higashimurayama, JP;

Assignee:

TOHOKU UNIVERSITY, Sendai-Shi, Miyagi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 43/08 (2006.01); G01R 33/09 (2006.01); G11C 11/16 (2006.01); G11B 5/31 (2006.01); H01L 27/22 (2006.01); H01L 43/12 (2006.01); H01L 43/02 (2006.01); H01L 43/10 (2006.01);
U.S. Cl.
CPC ...
H01L 43/08 (2013.01); G01R 33/098 (2013.01); G11B 5/31 (2013.01); G11C 11/16 (2013.01); G11C 11/161 (2013.01); G11C 11/1675 (2013.01); H01L 27/228 (2013.01); H01L 43/02 (2013.01); H01L 43/10 (2013.01); H01L 43/12 (2013.01); Y10T 428/1114 (2015.01);
Abstract

Provided are a magneto resistive effect element with a stable magnetization direction perpendicular to a film plane and with a controlled magnetoresistance ratio, and a magnetic memory using the magneto resistive effect element. Ferromagnetic layers of the magneto resistive effect element are formed from a ferromagnetic material containing at least one type of 3d transition metal such that the magnetoresistance ratio is controlled, and the film thickness of the ferromagnetic layers is controlled on an atomic layer level such that the magnetization direction is changed from a direction in the film plane to a direction perpendicular to the film plane.


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