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:
Jul. 15, 2014
Filed:
Apr. 01, 2013
Panasonic Corporation, Osaka, JP;
Akihiro Odagawa, Osaka, JP;
Nozomu Matsukawa, Nara, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A production method of the present disclosure includes: a first step of preparing a multi-layer graphene, and an iron oxide that is a ferromagnetic material contacting the graphene and containing FeO; and a second step of applying a voltage or a current between the graphene and the iron oxide with an electric potential of the graphene being positive relative to that of the iron oxide, so as to oxidize a part of the graphene or oxidize a part of the graphene and a part of FeO, and thus to form a barrier layer composed of oxidized graphene or of oxidized graphene and FeObetween the graphene and the iron oxide, and thereby forming a spin injection electrode that includes the graphene, the iron oxide, and the barrier layer located at an interface between the graphene and the iron oxide, and that allows spins to be injected into the graphene from the iron oxide via the barrier layer.