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. 11, 2012
Filed:
Jan. 14, 2005
Hideo Ohno, Sendai, JP;
Fumihiro Matsukura, Sendai, JP;
Daichi Chiba, Sendai, JP;
Michihiko Yamanouchi, Sendai, JP;
Hideo Ohno, Sendai, JP;
Fumihiro Matsukura, Sendai, JP;
Daichi Chiba, Sendai, JP;
Michihiko Yamanouchi, Sendai, JP;
Japan Science and Technology Agency, Kawaguchi-shi, JP;
Tohoku University, Sendai-shi, JP;
Abstract
The present invention provides a current injection-type magnetic domain wall-motion device which requires no external magnetic field for reversing the magnetization direction of a ferromagnetic body and which has low power consumption. The current injection-type magnetic domain wall-motion device includes a microjunction structure including two magnetic bodies (a first magnetic bodyand a second magnetic body) having magnetization directions antiparallel to each other and a third magnetic bodysandwiched therebetween. The magnetization direction of the device is controlled in such a manner that a pulse current (a current density of 10-10A/cm) is applied across junction interfaces present in the microjunction structure such that a magnetic domain wall is moved by the interaction between the magnetic domain wall and the current in the same direction as that of the current or in the direction opposite to that of the current.