JP7434962B2 - 磁気抵抗効果素子 - Google Patents
磁気抵抗効果素子 Download PDFInfo
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- 230000005294 ferromagnetic effect Effects 0.000 claims description 192
- 229910001291 heusler alloy Inorganic materials 0.000 claims description 62
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- 239000000758 substrate Substances 0.000 claims description 17
- 229910045601 alloy Inorganic materials 0.000 claims description 16
- 239000000956 alloy Substances 0.000 claims description 16
- 229910052709 silver Inorganic materials 0.000 claims description 14
- 229910052782 aluminium Inorganic materials 0.000 claims description 12
- 229910052804 chromium Inorganic materials 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 229910052733 gallium Inorganic materials 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 229910052737 gold Inorganic materials 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
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- 239000000696 magnetic material Substances 0.000 claims 1
- 230000005291 magnetic effect Effects 0.000 description 76
- 230000005415 magnetization Effects 0.000 description 62
- 239000013078 crystal Substances 0.000 description 27
- 230000005381 magnetic domain Effects 0.000 description 19
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 16
- 239000000203 mixture Substances 0.000 description 16
- 229910052749 magnesium Inorganic materials 0.000 description 13
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- CNQCVBJFEGMYDW-UHFFFAOYSA-N lawrencium atom Chemical compound [Lr] CNQCVBJFEGMYDW-UHFFFAOYSA-N 0.000 description 6
- 229910052707 ruthenium Inorganic materials 0.000 description 6
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- ORQBXQOJMQIAOY-UHFFFAOYSA-N nobelium Chemical compound [No] ORQBXQOJMQIAOY-UHFFFAOYSA-N 0.000 description 5
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- 229910000765 intermetallic Inorganic materials 0.000 description 3
- 229910020068 MgAl Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
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- 229910052723 transition metal Inorganic materials 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910019353 CoMnSb Inorganic materials 0.000 description 1
- 229910015372 FeAl Inorganic materials 0.000 description 1
- 229910005347 FeSi Inorganic materials 0.000 description 1
- 229910016583 MnAl Inorganic materials 0.000 description 1
- 229910017028 MnSi Inorganic materials 0.000 description 1
- 229910017034 MnSn Inorganic materials 0.000 description 1
- 229910005811 NiMnSb Inorganic materials 0.000 description 1
- 229910019041 PtMn Inorganic materials 0.000 description 1
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- 229910000510 noble metal Inorganic materials 0.000 description 1
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- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
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- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
- G01R33/09—Magnetoresistive devices
- G01R33/093—Magnetoresistive devices using multilayer structures, e.g. giant magnetoresistance sensors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/0052—Manufacturing aspects; Manufacturing of single devices, i.e. of semiconductor magnetic sensor chips
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
- G01R33/09—Magnetoresistive devices
- G01R33/098—Magnetoresistive devices comprising tunnel junctions, e.g. tunnel magnetoresistance sensors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
- G01R33/1292—Measuring domain wall position or domain wall motion
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
- G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
- G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
- G11B5/3909—Arrangements using a magnetic tunnel junction
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N50/00—Galvanomagnetic devices
- H10N50/10—Magnetoresistive devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N50/00—Galvanomagnetic devices
- H10N50/80—Constructional details
- H10N50/85—Magnetic active materials
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N50/00—Galvanomagnetic devices
- H10N50/01—Manufacture or treatment
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N50/00—Galvanomagnetic devices
- H10N50/80—Constructional details
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Hall/Mr Elements (AREA)
- Magnetic Heads (AREA)
- Mram Or Spin Memory Techniques (AREA)
- Thin Magnetic Films (AREA)
Description
図1は、第1実施形態にかかる磁気抵抗効果素子の断面図である。まず方向について定義する。各層が積層されている方向を、積層方向という場合がある。また積層方向と交差し、各層が広がる方向を面内方向という場合がある。
実施例1として、図1に示す磁気抵抗効果素子10を作製した。下地層及びキャップ層はRuとし、第1強磁性層1及び第2強磁性層2は、組成比がCo2FeGa0.5Ge0.8のホイスラー合金とした。第1非磁性層3はAgとし、第2非磁性層4はMgOとした。
MR比(%)=(RAP-RP)/RP×100
RPは、第1強磁性層1と第2強磁性層2の磁化の向きが平行の場合の抵抗値であり、RAPは、第1強磁性層1と第2強磁性層2の磁化の向きが反平行の場合の抵抗値である。
実施例2~7は、磁気抵抗効果素子10を平面視した際の第2非磁性層4が占める割合を変えた点が実施例1と異なる。実施例2~8は、MgとAgの合金層におけるMgとAgとの組成比を変えることで、平面視した際の第2非磁性層4が占める割合を変更した。
実施例2は、積層方向からの平面視で第2非磁性層4が占める割合が5%であった。
実施例3は、積層方向からの平面視で第2非磁性層4が占める割合が10%であった。
実施例4は、積層方向からの平面視で第2非磁性層4が占める割合が20%であった。
実施例5は、積層方向からの平面視で第2非磁性層4が占める割合が30%であった。
実施例6は、積層方向からの平面視で第2非磁性層4が占める割合が60%であった。
実施例7は、積層方向からの平面視で第2非磁性層4が占める割合が80%であった。
実施例8は、積層方向からの平面視で第2非磁性層4が占める割合が90%であった。
実施例3に係る磁気抵抗効果素子のMR比は10.1%であり、RAは0.09Ω・μm2であった。
実施例4に係る磁気抵抗効果素子のMR比は16.1%であり、RAは0.1Ω・μm2であった。
実施例5に係る磁気抵抗効果素子のMR比は17.5%であり、RAは0.11Ω・μm2であった。
実施例6に係る磁気抵抗効果素子のMR比は21%であり、RAは0.15Ω・μm2であった。
実施例7に係る磁気抵抗効果素子のMR比は11.5%であり、RAは0.2Ω・μm2であった。
実施例8に係る磁気抵抗効果素子のMR比は7.2%であり、RAは0.32Ω・μm2であった。
実施例9は、図9に示す磁気抵抗効果素子10を作製した。製造方法は、第2非磁性層4が、第1強磁性層1及び第2強磁性層2の第1非磁性層3と接する面と反対側の面に形成されている点が実施例1と異なる。
比較例1は、第2非磁性層を設けなかった点が実施例1と異なる。比較例1では、第1強磁性層1を成膜後に、Agの層を厚さは4nmで成膜し、その上に第2強磁性層2を成膜した。
比較例2は、第2非磁性層が不連続部分を有さず、積層面に対して一様な層とした点が実施例1と異なる。比較例2では、第1強磁性層1を成膜後に、厚さ0.5nmのMgOの層、厚さ4nmのAgの層、厚さ0.5nmのMgOの層を順に成膜し、その上に第2強磁性層2を成膜した。
Claims (6)
- 少なくとも一方がホイスラー合金層を含む第1強磁性層及び第2強磁性層と、
前記第1強磁性層と前記第2強磁性層との間で、積層方向と直交する全面に亘って広がる第1非磁性層と、
前記ホイスラー合金層のいずれかの面に接し、積層面に対して不連続な部分を有する第2非磁性層と、を備え、
前記第1非磁性層は、非磁性金属からなり、
前記第2非磁性層は、前記第1非磁性層とは異なる材料からなり、(001)配向したMgを含む酸化物であり、
積層方向からの平面視で、前記第2非磁性層が占める割合が10%以上80%以下である、磁気抵抗効果素子。 - 積層方向からの平面視で、前記第2非磁性層が占める割合が20%以上60%以下である、請求項1に記載の磁気抵抗効果素子。
- 前記ホイスラー合金層は、(001)方向に主配向している、請求項1又は2に記載の磁気抵抗効果素子。
- 前記第2非磁性層は、Al、Ga、Ti、Niからなる群から選択されるいずれかの元素を含む、請求項1~3のいずれか一項に記載の磁気抵抗効果素子。
- 前記第1非磁性層は、Cu、Au、Ag、Al、Crからなる群から選択されるいずれかの元素を含む金属又は合金である、請求項1~4のいずれか一項に記載の磁気抵抗効果素子。
- 基板をさらに有し、
前記基板は、前記第1強磁性層、前記第2強磁性層、前記第1非磁性層及び前記第2非磁性層が積層される下地であり、
前記基板は、アモルファスである、請求項1~5のいずれか一項に記載の磁気抵抗効果素子。
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US17/164,958 US11525873B2 (en) | 2020-02-05 | 2021-02-02 | Magnetoresistance effect element including at least one Heusler alloy layer and at least one discontinuous non-magnetic layer |
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CN113036032A (zh) * | 2019-12-24 | 2021-06-25 | Tdk株式会社 | 磁阻效应元件 |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007115347A (ja) | 2005-10-20 | 2007-05-10 | Hitachi Global Storage Technologies Netherlands Bv | Gmrスクリーン層を用いたcpp−gmr磁気ヘッド |
JP2008034523A (ja) | 2006-07-27 | 2008-02-14 | National Institute Of Advanced Industrial & Technology | Cpp型巨大磁気抵抗素子および磁気センサ |
JP2017204542A (ja) | 2016-05-10 | 2017-11-16 | 国立研究開発法人物質・材料研究機構 | 垂直磁化膜と垂直磁化膜構造並びに磁気抵抗素子および垂直磁気記録媒体 |
JP2018129423A (ja) | 2017-02-09 | 2018-08-16 | Tdk株式会社 | 強磁性トンネル接合体の製造方法及び強磁性トンネル接合体 |
JP2018147998A (ja) | 2017-03-03 | 2018-09-20 | Tdk株式会社 | 磁気抵抗効果素子 |
JP2019057601A (ja) | 2017-09-20 | 2019-04-11 | 東芝メモリ株式会社 | 磁気記憶装置 |
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US6365286B1 (en) * | 1998-09-11 | 2002-04-02 | Kabushiki Kaisha Toshiba | Magnetic element, magnetic memory device, magnetoresistance effect head, and magnetic storage system |
US6937446B2 (en) * | 2000-10-20 | 2005-08-30 | Kabushiki Kaisha Toshiba | Magnetoresistance effect element, magnetic head and magnetic recording and/or reproducing system |
FR2830971B1 (fr) * | 2001-10-12 | 2004-03-12 | Commissariat Energie Atomique | Dispositif magnetoresistif a vanne de spin a performances ameliorees |
JP2007329157A (ja) * | 2006-06-06 | 2007-12-20 | Tdk Corp | 磁気抵抗効果素子、薄膜磁気ヘッド、基体、ウェハ、ヘッドジンバルアセンブリ、ハードディスク装置、および磁気抵抗効果素子の製造方法 |
JP5039006B2 (ja) * | 2008-09-26 | 2012-10-03 | 株式会社東芝 | 磁気抵抗効果素子の製造方法、磁気抵抗効果素子、磁気ヘッドアセンブリ及び磁気記録再生装置 |
EP2421063B1 (en) * | 2009-04-16 | 2015-04-08 | National Institute for Materials Science | Ferromagnetic tunnel junction structure, and magnetoresistive effect element and spintronics device each comprising same |
EP2983219B1 (en) | 2013-04-05 | 2018-03-28 | National Institute for Materials Science | Current-perpendicular-to-plane magneto-resistance effect element |
US9412399B2 (en) | 2014-09-17 | 2016-08-09 | HGST Netherlands B.V. | Underlayer for reference layer of polycrystalline CPP GMR sensor stack |
JP6754108B2 (ja) * | 2015-12-04 | 2020-09-09 | 国立研究開発法人物質・材料研究機構 | 単結晶磁気抵抗素子、その製造方法及びその使用方法 |
KR20170080741A (ko) * | 2015-12-30 | 2017-07-11 | 에스케이하이닉스 주식회사 | 전자 장치 |
JP2018056391A (ja) * | 2016-09-29 | 2018-04-05 | Tdk株式会社 | 磁気抵抗効果素子 |
JP6873506B2 (ja) * | 2017-09-11 | 2021-05-19 | 国立研究開発法人物質・材料研究機構 | 垂直磁化膜の前駆体構造、垂直磁化膜構造、およびその製造方法、これらを用いた垂直磁化型トンネル磁気抵抗接合膜およびその製造方法、ならびにこれらを用いた垂直磁化型トンネル磁気抵抗接合素子 |
JP7066222B2 (ja) * | 2018-04-04 | 2022-05-13 | 国立研究開発法人物質・材料研究機構 | 面直電流巨大磁気抵抗素子、その前駆体、及びその製造方法 |
JP7035851B2 (ja) * | 2018-06-28 | 2022-03-15 | Tdk株式会社 | 磁気抵抗効果素子 |
JP7081372B2 (ja) * | 2018-07-26 | 2022-06-07 | Tdk株式会社 | 磁気抵抗効果素子 |
JP2020107835A (ja) * | 2018-12-28 | 2020-07-09 | Tdk株式会社 | 磁気抵抗効果素子 |
US11594674B2 (en) * | 2019-03-22 | 2023-02-28 | Tdk Corporation | Tunnel barrier layer, magnetoresistance effect element, method for manufacturing tunnel barrier layer, and insulating layer |
US11183227B1 (en) * | 2020-04-29 | 2021-11-23 | Regents Of The University Of Minnesota | Electric field switchable magnetic devices |
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- 2020-02-05 JP JP2020017780A patent/JP7434962B2/ja active Active
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007115347A (ja) | 2005-10-20 | 2007-05-10 | Hitachi Global Storage Technologies Netherlands Bv | Gmrスクリーン層を用いたcpp−gmr磁気ヘッド |
JP2008034523A (ja) | 2006-07-27 | 2008-02-14 | National Institute Of Advanced Industrial & Technology | Cpp型巨大磁気抵抗素子および磁気センサ |
JP2017204542A (ja) | 2016-05-10 | 2017-11-16 | 国立研究開発法人物質・材料研究機構 | 垂直磁化膜と垂直磁化膜構造並びに磁気抵抗素子および垂直磁気記録媒体 |
JP2018129423A (ja) | 2017-02-09 | 2018-08-16 | Tdk株式会社 | 強磁性トンネル接合体の製造方法及び強磁性トンネル接合体 |
JP2018147998A (ja) | 2017-03-03 | 2018-09-20 | Tdk株式会社 | 磁気抵抗効果素子 |
JP2019057601A (ja) | 2017-09-20 | 2019-04-11 | 東芝メモリ株式会社 | 磁気記憶装置 |
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