- 专利标题： Magnetic sensing element including laminated film composed of half-metal and NiFe alloy as free layer
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申请号： US11414978申请日： 2006-05-01
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公开(公告)号： US20060250727A1公开(公告)日： 2006-11-09
- 发明人: Naoya Hasegawa , Masamichi Saito , Yosuke Ide , Masahiko Ishizone
- 申请人： Naoya Hasegawa , Masamichi Saito , Yosuke Ide , Masahiko Ishizone
- 专利权人： Alps Electric Co., Ltd.
- 当前专利权人： Alps Electric Co., Ltd.
- 优先权： JP2004-256517 20040903; JP2005-035570 20050214
- 主分类号： G11B5/127
- IPC分类号： G11B5/127 ; G11B5/33
摘要：
A magnetic sensing element exhibiting a large ΔRA is provided, in which a free magnetic layer has a small coercive force Hc and a small magnetostriction constant λs. The free magnetic layer includes a Co2MnZ alloy layer (where Z may represent at least one element selected from the group consisting of Al, Sn, In, Sb, Ga, Si, Ge, Pb, and Zn) and a (NiaFe100-a)bX100-b alloy layer (where X may represent at least one element selected from the group consisting of Cu, Au, Ag, Zn, Mn, Al, Cd, Zr, and Hf, a may represent a composition ratio satisfying 80
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