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:
Mar. 01, 2022
Filed:
Apr. 08, 2020
Tohoku University, Sendai, JP;
Hiroaki Honjo, Sendai, JP;
Tetsuo Endoh, Sendai, JP;
Hideo Sato, Sendai, JP;
Shoji Ikeda, Sendai, JP;
TOHOKU UNIVERSITY, Sendai, JP;
Abstract
An object of the invention is to provide a magnetoresistance effect element which includes a reference layer having three or more magnetic layers and which improves a thermal stability factor Δ by decreasing a write error rate using an element structure that enables a wide margin to be secured between a current at which magnetization of the reference layer is reversed and a writing current Ic of a recording layer and by reducing an effect of a stray magnetic field from the reference layer. The magnetoresistance effect element includes: a first recording layer (A); a first non-magnetic layer (); and a first reference layer (B), wherein the first reference layer (B) including n-number of a plurality of magnetic layers () and (n−1)−number of a plurality of non-magnetic insertion layers ((n−1)) adjacently sandwiched by each of the plurality of magnetic layers, where n≥3.