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:
Jul. 09, 2024

Filed:

Feb. 28, 2023
Applicant:

Tdk Corporation, Tokyo, JP;

Inventors:

Shinto Ichikawa, Tokyo, JP;

Kazuumi Inubushi, Tokyo, JP;

Katsuyuki Nakada, Tokyo, JP;

Assignee:

TDK CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/39 (2006.01); G01R 33/09 (2006.01); G11C 11/16 (2006.01); H10N 50/10 (2023.01); H10N 50/85 (2023.01); H10N 52/80 (2023.01);
U.S. Cl.
CPC ...
H10N 50/10 (2023.02); G01R 33/091 (2013.01); G01R 33/093 (2013.01); G11B 5/3903 (2013.01); G11B 5/3906 (2013.01); G11B 5/3909 (2013.01); G11C 11/161 (2013.01); H10N 50/85 (2023.02); H10N 52/80 (2023.02);
Abstract

A magnetoresistance effect element includes: a first ferromagnetic layer; a second ferromagnetic layer; and a non-magnetic layer provided between the first ferromagnetic layer and the second ferromagnetic layer, wherein at least one of the first ferromagnetic layer and the second ferromagnetic layer includes a first layer and a second layer in order from the side closer to the non-magnetic layer, the first layer contains a crystallized Co-based Heusler alloy, at least a part of the second layer is crystallized, the second layer contains a ferromagnetic element, boron element and an additive element, and the additive element is any element selected from a group consisting of Ti, V, Cr, Cu, Zn, Zr, Mo, Ru, Pd, Ta, W, Ir, Pt, and Au.


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