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:
Feb. 04, 2014
Filed:
Aug. 04, 2010
Masaki Yamada, Sendai, JP;
Hiromasa Takahashi, Cambridge, GB;
Masaki Yamada, Sendai, JP;
Hiromasa Takahashi, Cambridge, GB;
Hitachi, Ltd., Tokyo, JP;
Abstract
Provided are a spin-injection element having high spin-injection efficiency, and a magnetic field sensor and a magnetic recording memory employing the element. The element comprises a barrier layer, a magnetic conductive layer, and a spin accumulation portion comprised of non-magnetic conductive material. In the element, a first spin accumulation layer () and the barrier layer () have respectively a body-centered cubic lattice structure. Due to this, the first spin accumulation layer () and the barrier layer () come into contact with each other through a boundary face with improved crystalline symmetry. Thereby, lattice matching is improved and scattering of the tunnel electrons in the Δ1 band is prevented, resulting in improvement in the spin polarizability. Further, the characteristics of the device employing the spin injection element are improved.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile