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.
Patent No.:
Date of Patent:
Dec. 25, 2018
Filed:
Jan. 16, 2018
Tohoku University, Sendai-shi, Miyagi, JP;
Hideo Sato, Sendai, JP;
Shoji Ikeda, Sendai, JP;
Mathias Bersweiler, Sendai, JP;
Hiroaki Honjo, Sendai, JP;
Kyota Watanabe, Sendai, JP;
Shunsuke Fukami, Sendai, JP;
Fumihiro Matsukura, Sendai, JP;
Kenchi Ito, Sendai, JP;
Masaaki Niwa, Sendai, JP;
Tetsuo Endoh, Sendai, JP;
Hideo Ohno, Sendai, JP;
TOHOKU UNIVERSITY, Sendai-shi, Miyagi, JP;
Abstract
A magnetoresistance effect element includes first and second magnetic layers having a perpendicular magnetization direction, and a first non-magnetic layer disposed adjacent to the first magnetic layer and on a side opposite to a side on which the second magnetic layer is disposed. An interfacial perpendicular magnetic anisotropy exists at an interface between the first magnetic layer and the first non-magnetic layer, and the anisotropy causes the first magnetic layer to have a magnetization direction perpendicular to the surface if the layers. The second magnetic layer has a saturation magnetization lower than that of the first magnetic layer, and an interfacial magnetic anisotropy energy density (K) at the interface between the first magnetic layer and the first non-magnetic layer is greater than that of an interface between the first non-magnetic layer and second magnetic layers if being disposed adjacent each other.