公开(公告)号：EP1494295B1

公开(公告)日：2013-06-05

申请号：EP03745971.6

申请日：2003-04-08

申请人： Sony Corporation

发明人： HOSOMI, Masanori, Sony Corporation ,  MIZUGUCHI, Tetsuya, Sony Corporation ,  OHBA, Kazuhiro, Sony Corporation ,  BESSHO, Kazuhiro, Sony Corporation ,  YAMAMOTO, Tetsuya, Sony Corporation ,  KANO, Hiroshi, Sony Corporation

IPC分类号： H01L43/08 ,  G01R33/09 ,  G11B5/39 ,  H01L27/105

CPC分类号： G01R33/093 ,  B82Y10/00 ,  B82Y25/00 ,  G11C11/15 ,  H01F10/3204 ,  H01F10/324 ,  H01F10/3254 ,  H01F10/3277 ,  H01L27/228 ,  H01L43/10

公开(公告)号：EP1494295A1

公开(公告)日：2005-01-05

申请号：EP03745971.6

申请日：2003-04-08

申请人： Sony Corporation

发明人： HOSOMI, Masanori, Sony Corporation ,  MIZUGUCHI, Tetsuya, Sony Corporation ,  OHBA, Kazuhiro, Sony Corporation ,  BESSHO, Kazuhiro, Sony Corporation ,  YAMAMOTO, Tetsuya, Sony Corporation ,  KANO, Hiroshi, Sony Corporation

IPC分类号： H01L43/08 ,  G01R33/09 ,  G11B5/39 ,  H01L27/105

CPC分类号： G01R33/093 ,  B82Y10/00 ,  B82Y25/00 ,  G11C11/15 ,  H01F10/3204 ,  H01F10/324 ,  H01F10/3254 ,  H01F10/3277 ,  H01L27/228 ,  H01L43/10

摘要： Write characteristics and read characteristics can be improved at the same time by applying novel materials to ferromagnetic layers. In a magnetoresistive effect element having a pair of ferromagnetic layers being opposed to each other through an intermediate layer to cause a current to flow in the direction perpendicular to the film plane to obtain a magnetoresistive change, at least one of the ferromagnetic layers contains a ferromagnetic material containing Fe, Co and B. The ferromagnetic material should preferably contain Fe a Co b Ni c B d (in the chemical formula, a, b, c and d represent atomic %. 5 ≦ a ≦ 45, 35 ≦ b ≦ 85, 0