JP2010229477A - ホイスラー合金材料、磁気抵抗素子および磁気デバイス - Google Patents
ホイスラー合金材料、磁気抵抗素子および磁気デバイス Download PDFInfo
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- JP2010229477A JP2010229477A JP2009077606A JP2009077606A JP2010229477A JP 2010229477 A JP2010229477 A JP 2010229477A JP 2009077606 A JP2009077606 A JP 2009077606A JP 2009077606 A JP2009077606 A JP 2009077606A JP 2010229477 A JP2010229477 A JP 2010229477A
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- heusler alloy
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- 229910001291 heusler alloy Inorganic materials 0.000 title claims abstract description 41
- 239000000956 alloy Substances 0.000 title claims abstract description 35
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 31
- 230000005415 magnetization Effects 0.000 claims abstract description 29
- 239000000203 mixture Substances 0.000 claims abstract description 12
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 10
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims abstract description 4
- 229910000676 Si alloy Inorganic materials 0.000 claims abstract description 3
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000011651 chromium Substances 0.000 claims description 4
- 230000005294 ferromagnetic effect Effects 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- 230000010287 polarization Effects 0.000 abstract description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 abstract 1
- 229910000423 chromium oxide Inorganic materials 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 22
- 229910003321 CoFe Inorganic materials 0.000 description 7
- 239000000696 magnetic material Substances 0.000 description 4
- 229910018516 Al—O Inorganic materials 0.000 description 3
- 230000001747 exhibiting effect Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 229910017028 MnSi Inorganic materials 0.000 description 2
- 239000003302 ferromagnetic material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000002772 conduction electron Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Hall/Mr Elements (AREA)
- Thin Magnetic Films (AREA)
Abstract
【解決手段】ホイスラー合金材料は、Co2(FexMn1-x)Si合金(x=0.1〜0.9)の組成比を有している。酸化マグネシウムまたはクロムから成る下地層を介して形成された後、熱処理プロセスを施して形成されている。
【選択図】図1
Description
Claims (7)
- Co2(FexMn1-x)Si合金(x=0.1〜0.9)の組成比を有することを、特徴とするホイスラー合金材料。
- 熱処理プロセスを経ていることを、特徴とする請求項1記載のホイスラー合金材料。
- 所定の下地層を介して形成されていることを、特徴とする請求項1または2記載のホイスラー合金材料。
- 前記下地層は酸化マグネシウムまたはクロムから成ることを、特徴とする請求項1、2または3記載のホイスラー合金材料。
- 強磁性金属磁化固定層/中間層/強磁性金属磁化自由層から成り、前記磁化固定層と前記磁化自由層との磁化の相対角度により抵抗が変化する磁気抵抗素子において、
請求項1、2、3または4記載のホイスラー合金材料を、前記磁化自由層および前記磁化固定層の少なくとも一方に用いたことを、
特徴とする磁気抵抗素子。 - 前記中間層として酸化アルミニウム、または、酸化マグネシウムを用い、前記磁化自由層あるいは前記磁化固定層として請求項1、2、3または4に記載のホイスラー合金材料を用いたトンネル磁気抵抗素子から成ることを、特徴とする請求項5記載の磁気抵抗素子。
- 請求項5または6に記載の磁気抵抗素子を用いることを、特徴とする磁気デバイス。
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JP2009077606A JP5413646B2 (ja) | 2009-03-26 | 2009-03-26 | ホイスラー合金材料、磁気抵抗素子および磁気デバイス |
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JP2009077606A JP5413646B2 (ja) | 2009-03-26 | 2009-03-26 | ホイスラー合金材料、磁気抵抗素子および磁気デバイス |
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JP2010229477A true JP2010229477A (ja) | 2010-10-14 |
JP5413646B2 JP5413646B2 (ja) | 2014-02-12 |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012138539A (ja) * | 2010-12-28 | 2012-07-19 | Hitachi Ltd | 熱電変換材料と電界印加型熱電変換素子 |
JP2012190914A (ja) * | 2011-03-09 | 2012-10-04 | Tohoku Univ | 磁気抵抗効果素子および磁気デバイス |
JP2013021089A (ja) * | 2011-07-11 | 2013-01-31 | Hitachi Ltd | 熱電変換素子 |
WO2014163121A1 (ja) * | 2013-04-05 | 2014-10-09 | 独立行政法人物質・材料研究機構 | 電流垂直型磁気抵抗効果素子 |
WO2017029720A1 (ja) * | 2015-08-19 | 2017-02-23 | 株式会社日立製作所 | 磁気センサ及びその製造方法 |
US20190279667A1 (en) * | 2016-12-12 | 2019-09-12 | Western Digital Technologies, Inc. | Spin transfer torque (stt) device with template layer for heusler alloy magnetic layers |
US10867625B1 (en) | 2019-03-28 | 2020-12-15 | Western Digital Technologies, Inc | Spin transfer torque (STT) device with template layer for Heusler alloy magnetic layers |
Citations (5)
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JP2004524689A (ja) * | 2001-02-23 | 2004-08-12 | インターナショナル・ビジネス・マシーンズ・コーポレーション | 巨大磁気抵抗およびスピン分極トンネルを有する化合物、その製造および使用方法 |
JP2005116703A (ja) * | 2003-10-06 | 2005-04-28 | Alps Electric Co Ltd | 磁気検出素子 |
JP2007189039A (ja) * | 2006-01-13 | 2007-07-26 | Alps Electric Co Ltd | トンネル型磁気検出素子及びその製造方法 |
JP2008156703A (ja) * | 2006-12-25 | 2008-07-10 | National Institute For Materials Science | ホイスラー合金とそれを用いたtmr素子又はgmr素子 |
JP2008243922A (ja) * | 2007-03-26 | 2008-10-09 | Tokyo Institute Of Technology | 強磁性体の形成方法並びにトランジスタ及びその製造方法 |
-
2009
- 2009-03-26 JP JP2009077606A patent/JP5413646B2/ja active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2004524689A (ja) * | 2001-02-23 | 2004-08-12 | インターナショナル・ビジネス・マシーンズ・コーポレーション | 巨大磁気抵抗およびスピン分極トンネルを有する化合物、その製造および使用方法 |
JP2005116703A (ja) * | 2003-10-06 | 2005-04-28 | Alps Electric Co Ltd | 磁気検出素子 |
JP2007189039A (ja) * | 2006-01-13 | 2007-07-26 | Alps Electric Co Ltd | トンネル型磁気検出素子及びその製造方法 |
JP2008156703A (ja) * | 2006-12-25 | 2008-07-10 | National Institute For Materials Science | ホイスラー合金とそれを用いたtmr素子又はgmr素子 |
JP2008243922A (ja) * | 2007-03-26 | 2008-10-09 | Tokyo Institute Of Technology | 強磁性体の形成方法並びにトランジスタ及びその製造方法 |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012138539A (ja) * | 2010-12-28 | 2012-07-19 | Hitachi Ltd | 熱電変換材料と電界印加型熱電変換素子 |
US9559280B2 (en) | 2010-12-28 | 2017-01-31 | Hitachi, Ltd. | Thermoelectric conversion device |
JP2012190914A (ja) * | 2011-03-09 | 2012-10-04 | Tohoku Univ | 磁気抵抗効果素子および磁気デバイス |
JP2013021089A (ja) * | 2011-07-11 | 2013-01-31 | Hitachi Ltd | 熱電変換素子 |
WO2014163121A1 (ja) * | 2013-04-05 | 2014-10-09 | 独立行政法人物質・材料研究機構 | 電流垂直型磁気抵抗効果素子 |
US9558767B2 (en) | 2013-04-05 | 2017-01-31 | National Institute For Materials Science | Current-perpendicular-to-plane magneto-resistance effect element |
US9589583B1 (en) | 2013-04-05 | 2017-03-07 | National Institute For Materials Science | Current-perpendicular-to-plane magneto-resistance effect element |
WO2017029720A1 (ja) * | 2015-08-19 | 2017-02-23 | 株式会社日立製作所 | 磁気センサ及びその製造方法 |
US20190279667A1 (en) * | 2016-12-12 | 2019-09-12 | Western Digital Technologies, Inc. | Spin transfer torque (stt) device with template layer for heusler alloy magnetic layers |
US10566015B2 (en) * | 2016-12-12 | 2020-02-18 | Western Digital Technologies, Inc. | Spin transfer torque (STT) device with template layer for heusler alloy magnetic layers |
US10867625B1 (en) | 2019-03-28 | 2020-12-15 | Western Digital Technologies, Inc | Spin transfer torque (STT) device with template layer for Heusler alloy magnetic layers |
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