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, 2007
Filed:
Apr. 30, 2004
Chang-man Park, Mountain View, CA (US);
Shin Funada, Pleasanton, CA (US);
Amritpal S. Rana, Union City, CA (US);
Lena Miloslavsky, Sunnyvale, CA (US);
Chang-Man Park, Mountain View, CA (US);
Shin Funada, Pleasanton, CA (US);
Amritpal S. Rana, Union City, CA (US);
Lena Miloslavsky, Sunnyvale, CA (US);
Western Digital (Fremont), LLC, Fremont, CA (US);
Abstract
A method and system for providing a spin filter is disclosed. The method and system include providing a pinned layer, a free layer, and a conductive nonmagnetic spacer layer between the pinned layer and the free layer. The method and system also include providing a spin filter layer and a capping layer on the spin filter layer. The spin filter layer is adjacent to the free layer. The spin filter layer is on an opposite side of the free layer as the nonmagnetic spacer layer and includes at least Pt and/or Rh. The capping layer has a specular reflection layer therein. In one aspect, the specular reflection layer allows specular reflection of current carriers traveling from the spin filter layer to the specular reflection layer. In another aspect, the specular reflection layer includes at least Ta, Ti, Zr, Hf, Nb, Al, Mo, W, Si, Cr, V, Ni, Co, and Fe.