Invention Application
- Patent Title: MAGNETORESISTIVE ELEMENT, MAGNETIC HEAD, MAGNETIC RECORDING AND REPRODUCING APPARATUS, AND METHOD OF MANUFACTURING MAGNETORESISTIVE ELEMENT
- Patent Title (中): 磁电元件，磁头，磁记录和再现装置，以及制造磁性元件的方法
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Application No.: US14206175Application Date: 2014-03-12
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Publication No.: US20140334041A1Publication Date: 2014-11-13
- Inventor: Naoki HASE , Masayuki TAKAGISHI , Susumu HASHIMOTO , Shuichi MURAKAMI , Yousuke ISOWAKI , Masaki KADO , Hitoshi IWASAKI
- Applicant: KABUSHIKI KAISHA TOSHIBA
- Applicant Address: JP Tokyo
- Assignee: KABUSHIKI KAISHA TOSHIBA
- Current Assignee: KABUSHIKI KAISHA TOSHIBA
- Current Assignee Address: JP Tokyo
- Priority: JP2013-099379 20130509
- Main IPC: G11B5/31
- IPC: G11B5/31
Abstract:
A magnetoresistive element according to an embodiment includes: a magnetoresistance effect film including: a first magnetic film; a second magnetic film; and an intermediate film of a nonmagnetic material disposed between the first magnetic film and the second magnetic film, at least one of the first magnetic film and the second magnetic film being formed of a material expressed as AxB1-x(65 at %≦x≦85 at %) where A is an alloy containing Co and at least one element selected from Fe and Mn, and B is an alloy containing Si or Ge, a Si concentration in the at least one of the first magnetic film and the second magnetic film decreasing and a Ge concentration increasing as a distance from the intermediate film increases.
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