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:
Sep. 16, 2014
Filed:
Jul. 19, 2013
Kabushiki Kaisha Toshiba, Tokyo, JP;
Tohoku University, Sendai, JP;
Showa Denko K.k., Tokyo, JP;
Akihiko Takeo, Kokubunji, JP;
Akira Kikitsu, Yokohama, JP;
Tomoyuki Maeda, Kawasaki, JP;
Migaku Takahashi, Sendai, JP;
Shin Saito, Sendai, JP;
Ken Inoue, Ichihara, JP;
Gohei Kurokawa, Ichihara, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Tohoku University, Sendai-Shi, JP;
Showa Denko K.K., Tokyo, JP;
Abstract
According to one embodiment, there is provided a thin magnetic film having a negative anisotropy of −6×10erg/cmor less and including, on at least a nonmagnetic substrate, at least one seed layer made of a metal or metal compound, a ruthenium underlayer for controlling the orientation of an immediately overlying layer, and a magnetic layer having negative anisotropy in the normal line direction perpendicular to a surface of the magnetic layer and mainly containing Co and Ir, wherein the additive element concentration of Ir in the magnetic layer is 10 (inclusive) to 45 (inclusive) at %.