Invention Grant
- Patent Title: Magnetoresistive element and magnetic memory
- Patent Title (中): 磁阻元件和磁记忆体
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Application No.: US12233121Application Date: 2008-09-18
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Publication No.: US08098514B2Publication Date: 2012-01-17
- Inventor: Toshihiko Nagase , Katsuya Nishiyama , Tadashi Kai , Masahiko Nakayama , Makoto Nagamine , Minoru Amano , Masatoshi Yoshikawa , Tatsuya Kishi , Hiroaki Yoda
- Applicant: Toshihiko Nagase , Katsuya Nishiyama , Tadashi Kai , Masahiko Nakayama , Makoto Nagamine , Minoru Amano , Masatoshi Yoshikawa , Tatsuya Kishi , Hiroaki Yoda
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2007-250287 20070926
- Main IPC: G11C11/00
- IPC: G11C11/00

Abstract:
A magnetoresistive element includes a first reference layer having magnetic anisotropy perpendicular to a film surface, and an invariable magnetization, a recording layer having a stacked structure formed by alternately stacking magnetic layers and nonmagnetic layers, magnetic anisotropy perpendicular to a film surface, and a variable magnetization, and an intermediate layer provided between the first reference layer and the recording layer, and containing a nonmagnetic material. The magnetic layers include a first magnetic layer being in contact with the intermediate layer and a second magnetic layer being not in contact with the intermediate layer. The first magnetic layer contains an alloy containing cobalt (Co) and iron (Fe), and has a film thickness larger than that of the second magnetic layer.
Public/Granted literature
- US20090080239A1 MAGNETORESISTIVE ELEMENT AND MAGNETIC MEMORY Public/Granted day:2009-03-26
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