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. 29, 2020
Filed:
Apr. 27, 2020
Korea University Research and Business Foundation, Seoul, KR;
Kyung-Jin Lee, Seoul, KR;
Abstract
A magnetic tunnel junction device and magnetic memory device. The magnetic tunnel junction device includes a magnetic tunnel junction including a fixed magnetic body, an insulator, and a free magnetic body sequentially stacked and a conducting wire disposed adjacent the free magnetic body of the magnetic tunnel junction to apply in-plane current. The fixed magnetic body has a fixed magnetization direction and is a thin film including a material magnetized directionally perpendicular to a film surface. The main free magnetic layer and the auxiliary free magnetic layer change in magnetization direction and is a thin film including a material magnetized directionally perpendicular to a film surface, and the main free magnetic layer is disposed adjacent to a conducting wire generating spin current by the in-plane current. Among magnetic layers constituting the free magnetic body, two magnetic layers closest to each other have opposite magnetization directions by an RKKY exchange interaction.