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. 07, 2008
Filed:
Jun. 23, 2004
Hideaki Kasai, Osaka, JP;
Hiroshi Nakanishi, Osaka, JP;
Tomoya Kishi, Hyogo, JP;
Japan Science and Technology Agency, Kawaguchi-shi, JP;
Abstract
A surface-spintronic device operating on a novel principles of operations may be implemented as a spin conducting, a spin switching or a spin memory device. It includes a magnetic atom thin film () layered on a surface of a solid crystal () and a drain and a source electrodes ()and () disposed at two locations on the magnetic atom thin film, respectively, whereby a spin splitting surface electronic state band formed in a system comprising said solid crystal() surface and said magnetic atom thin film () is utilized to obtain a spin polarized current flow. With electrons spin-polarized in a particular direction injected from the source electrode (), controlling the direction of magnetization of the magnetic atom thin film () allows switching on and off the conduction of such injected electrons therethrough. Also, with the use of the magnetization holding function of the magnetic atom thin film (), it is possible to realize a spin memory device that can operate to write information on controlling the direction of magnetization of the magnetic atom thin film () and that can operate to read information on detecting the electrodes ().