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:
Oct. 17, 2023
Filed:
Jul. 27, 2020
Korea University Research and Business Foundation, Seoul, KR;
Abstract
A magnetic nano oscillating device, according to an embodiment of the present invention, comprises: a ferromagnetic layer disposed on a substrate; a non-magnetic conductive layer laminated on the ferromagnetic layer; an antiferromagnetic layer (or a ferrimagnetic layer) laminated on the non-magnetic conductive layer; and first and second electrodes respectively contacting both side surfaces of the ferromagnetic layer and the non-magnetic conductive layer. The antiferromagnetic layer (or ferrimagnetic layer) is a thin film made of a material magnetized in perpendicular or in-plane direction to a layer surface, the ferromagnetic layer is in-plane magnetized to a layer surface of the ferromagnetic layer, and an in-plane current injected into the ferromagnetic layer and the non-magnetic conductive layer through the first and second electrodes provides a spin current including a spin in a thickness direction of the thin film transferred to the antiferromagnetic layer (or ferrimagnetic layer), thereby causing magnetization precessional motion of a sub-lattice of the antiferromagnetic layer (or ferrimagnetic layer).