JP2010123978A5 - - Google Patents

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Publication number
JP2010123978A5
JP2010123978A5 JP2009291333A JP2009291333A JP2010123978A5 JP 2010123978 A5 JP2010123978 A5 JP 2010123978A5 JP 2009291333 A JP2009291333 A JP 2009291333A JP 2009291333 A JP2009291333 A JP 2009291333A JP 2010123978 A5 JP2010123978 A5 JP 2010123978A5
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JP
Japan
Prior art keywords
layer
ferromagnetic layer
ferromagnetic
magnetoresistive element
nonmagnetic intermediate
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Pending
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JP2009291333A
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Japanese (ja)
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JP2010123978A (en
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Priority to JP2009291333A priority Critical patent/JP2010123978A/en
Priority claimed from JP2009291333A external-priority patent/JP2010123978A/en
Publication of JP2010123978A publication Critical patent/JP2010123978A/en
Publication of JP2010123978A5 publication Critical patent/JP2010123978A5/ja
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Claims (3)

反強磁性層と、An antiferromagnetic layer,
積層磁化固定層と、  A laminated magnetization pinned layer;
第2非磁性中間層と、  A second nonmagnetic intermediate layer;
磁化自由層と、を有する磁気抵抗素子であって、  A magnetoresistive element having a magnetization free layer,
前記反強磁性層はマンガンを含有し、  The antiferromagnetic layer contains manganese;
前記積層磁化固定層は前記反強磁性層側に設けられた第1強磁性層と第2強磁性層、前記第2非磁性中間層側に設けられた第3強磁性層と第4強磁性層、及び前記第2強磁性層と前記第3強磁性層との間に設けられた第1非磁性中間層を有し、  The stacked magnetization fixed layer includes a first ferromagnetic layer and a second ferromagnetic layer provided on the antiferromagnetic layer side, and a third ferromagnetic layer and a fourth ferromagnetic layer provided on the second nonmagnetic intermediate layer side. And a first nonmagnetic intermediate layer provided between the second ferromagnetic layer and the third ferromagnetic layer,
前記第1強磁性層は下記の式1により示される合金を有し、  The first ferromagnetic layer has an alloy represented by the following formula 1,
前記第2強磁性層、前記第3強磁性層及び前記第4強磁性層は下記の式2により示される合金を有し、  The second ferromagnetic layer, the third ferromagnetic layer, and the fourth ferromagnetic layer have an alloy represented by the following formula 2,
前記式1は、  Formula 1 is
(FeaCobNic)d(M)e(FeaCobNic) d (M) e
(0≦a<100、0≦b<100、0≦c<100、a+b+c=100、99.5≧d≧50、0.5≦e≦50、d+e=100 Mは、白金族系金属を示す。)であり、(0 ≦ a <100, 0 ≦ b <100, 0 ≦ c <100, a + b + c = 100, 99.5 ≧ d ≧ 50, 0.5 ≦ e ≦ 50, d + e = 100 M is a platinum group metal. And
前記式2は、  Formula 2 is
(FexCoyNiz)m(B)n(FexCoyNiz) m (B) n
(0≦x<100、0≦y<100、0≦z<100、x+y+z=100、m+n=100、0≦n<30、70<m≦100 Bはボロンを示す。)であることを特徴とする磁気抵抗素子。(0 ≦ x <100, 0 ≦ y <100, 0 ≦ z <100, x + y + z = 100, m + n = 100, 0 ≦ n <30, 70 <m ≦ 100 B represents boron). A magnetoresistive element.
前記第1強磁性層にはボロンが0.5原子%〜30原子%含有されていることを特徴とする請求項1に記載の磁気抵抗素子。2. The magnetoresistive element according to claim 1, wherein the first ferromagnetic layer contains 0.5 atomic% to 30 atomic% of boron. 前記白金族系金属は、白金、イリジウム、オスミウム、パラジウム、ルテニウムまたはロジウムから選択された少なくとも1種の金属であり、The platinum group metal is at least one metal selected from platinum, iridium, osmium, palladium, ruthenium or rhodium,
前記第2非磁性中間層はMgOを有するトンネルバリア層であることを特徴とする請求項1または2に記載の磁気抵抗素子。  The magnetoresistive element according to claim 1, wherein the second nonmagnetic intermediate layer is a tunnel barrier layer containing MgO.
JP2009291333A 2007-05-07 2009-12-22 Method of manufacturing magnetoresistive element Pending JP2010123978A (en)

Priority Applications (1)

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JP2009291333A JP2010123978A (en) 2007-05-07 2009-12-22 Method of manufacturing magnetoresistive element

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JP2007122367 2007-05-07
JP2009291333A JP2010123978A (en) 2007-05-07 2009-12-22 Method of manufacturing magnetoresistive element

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JP2008110434A Division JP2008306169A (en) 2007-05-07 2008-04-21 Magnetoresistive element, its manufacturing method, and magnetic multilayer film manufacturing apparatus

Publications (2)

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JP2010123978A JP2010123978A (en) 2010-06-03
JP2010123978A5 true JP2010123978A5 (en) 2011-08-25

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CN (1) CN101304070B (en)

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