CN102709465A - 具有弱交换耦合的反铁磁层的磁性器件 - Google Patents

具有弱交换耦合的反铁磁层的磁性器件 Download PDF

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Publication number
CN102709465A
CN102709465A CN2012101423485A CN201210142348A CN102709465A CN 102709465 A CN102709465 A CN 102709465A CN 2012101423485 A CN2012101423485 A CN 2012101423485A CN 201210142348 A CN201210142348 A CN 201210142348A CN 102709465 A CN102709465 A CN 102709465A
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China
Prior art keywords
free layer
layer
magnetic
magnetic device
inverse ferric
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Pending
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CN2012101423485A
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English (en)
Chinese (zh)
Inventor
R·R·凯蒂
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Honeywell International Inc
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Honeywell International Inc
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    • 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
    • H01F41/30—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates for applying nanostructures, e.g. by molecular beam epitaxy [MBE]
    • H01F41/302—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates for applying nanostructures, e.g. by molecular beam epitaxy [MBE] for applying spin-exchange-coupled multilayers, e.g. nanostructured superlattices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y40/00—Manufacture or treatment of nanostructures
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/32—Spin-exchange-coupled multilayers, e.g. nanostructured superlattices
    • H01F10/3218—Exchange coupling of magnetic films via an antiferromagnetic interface
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/32—Spin-exchange-coupled multilayers, e.g. nanostructured superlattices
    • H01F10/324—Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer
    • H01F10/3286—Spin-exchange coupled multilayers having at least one layer with perpendicular magnetic anisotropy
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/32—Spin-exchange-coupled multilayers, e.g. nanostructured superlattices
    • H01F10/324—Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer
    • H01F10/329—Spin-exchange coupled multilayers wherein the magnetisation of the free layer is switched by a spin-polarised current, e.g. spin torque effect
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/32—Spin-exchange-coupled multilayers, e.g. nanostructured superlattices
    • H01F10/324—Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer
    • H01F10/3254—Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer the spacer being semiconducting or insulating, e.g. for spin tunnel junction [STJ]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/32—Spin-exchange-coupled multilayers, e.g. nanostructured superlattices
    • H01F10/324—Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer
    • H01F10/3268—Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer the exchange coupling being asymmetric, e.g. by use of additional pinning, by using antiferromagnetic or ferromagnetic coupling interface, i.e. so-called spin-valve [SV] structure, e.g. NiFe/Cu/NiFe/FeMn
    • H01F10/3272—Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer the exchange coupling being asymmetric, e.g. by use of additional pinning, by using antiferromagnetic or ferromagnetic coupling interface, i.e. so-called spin-valve [SV] structure, e.g. NiFe/Cu/NiFe/FeMn by use of anti-parallel coupled [APC] ferromagnetic layers, e.g. artificial ferrimagnets [AFI], artificial [AAF] or synthetic [SAF] anti-ferromagnets
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Nanotechnology (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Hall/Mr Elements (AREA)
CN2012101423485A 2011-03-23 2012-03-22 具有弱交换耦合的反铁磁层的磁性器件 Pending CN102709465A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/070249 2011-03-23
US13/070,249 US8525602B2 (en) 2011-03-23 2011-03-23 Magnetic device with weakly exchange coupled antiferromagnetic layer

Publications (1)

Publication Number Publication Date
CN102709465A true CN102709465A (zh) 2012-10-03

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CN2012101423485A Pending CN102709465A (zh) 2011-03-23 2012-03-22 具有弱交换耦合的反铁磁层的磁性器件

Country Status (6)

Country Link
US (1) US8525602B2 (enExample)
EP (1) EP2503564A1 (enExample)
JP (1) JP2012204837A (enExample)
KR (1) KR20120108944A (enExample)
CN (1) CN102709465A (enExample)
IN (1) IN2012DE00855A (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105206286A (zh) * 2014-06-30 2015-12-30 株式会社东芝 磁盘装置
CN106252503A (zh) * 2015-06-15 2016-12-21 中国科学院物理研究所 基于反铁磁材料的超高频自旋微波振荡器
CN107070408A (zh) * 2015-11-19 2017-08-18 三星电子株式会社 自旋扭矩振荡器、包括其的电子设备和其制造方法

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JP5542761B2 (ja) * 2011-09-20 2014-07-09 株式会社東芝 磁気抵抗効果素子およびその製造方法
US8737023B2 (en) * 2012-10-15 2014-05-27 Seagate Technology Llc Magnetic reader with tuned anisotropy
US9047894B2 (en) 2013-10-03 2015-06-02 HGST Netherlands B.V. Magnetic write head having spin torque oscillator that is self aligned with write pole
US9196271B1 (en) * 2014-10-21 2015-11-24 Kabushiki Kaisha Toshiba Spin-torque oscillation element and microwave-assisted magnetic recording head using the same
CN108780779B (zh) * 2016-06-10 2023-04-25 Tdk株式会社 交换偏置利用型磁化反转元件、交换偏置利用型磁阻效应元件、交换偏置利用型磁存储器、非易失性逻辑电路及磁神经元元件
EP3961632A1 (en) * 2020-08-25 2022-03-02 Commissariat à l'Energie Atomique et aux Energies Alternatives Magnetic tunnel junction comprising an inhomogeneous granular free layer and associated spintronic devices
US12524659B2 (en) * 2021-07-21 2026-01-13 Institute of Microelectronics, Chinese Academy of Sciences Neuron device based on spin orbit torque
EP4231031A1 (en) * 2022-02-22 2023-08-23 Crocus Technology S.A. Magnetoresistive element having thermally robust performances after high-field exposure and sensor comprising the magnetoresistive element

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US6542341B1 (en) * 1999-11-18 2003-04-01 International Business Machines Corporation Magnetic sensors having an antiferromagnetic layer exchange-coupled to a free layer
GB2400720A (en) * 2003-04-18 2004-10-20 Alps Electric Co Ltd Magnetoresistive head with antiferromagnetic layer in the rear of the element
US7053430B2 (en) * 2003-11-12 2006-05-30 Honeywell International Inc. Antiferromagnetic stabilized storage layers in GMRAM storage devices
CN1934652A (zh) * 2004-02-13 2007-03-21 弘世科技公司 用于提供利用自旋转移的磁性元件的热辅助切换的方法和系统
US20070176251A1 (en) * 2006-01-27 2007-08-02 Se-Chung Oh Magnetic memory device and method of fabricating the same

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JP3916908B2 (ja) 2001-09-28 2007-05-23 株式会社東芝 磁気抵抗効果素子、磁気メモリ及び磁気ヘッド
US6765770B2 (en) * 2001-10-11 2004-07-20 Storage Technology Corporation Apparatus and method of making a stabilized MR/GMR spin valve read element using longitudinal ferromagnetic exchange interactions
US7035062B1 (en) 2001-11-29 2006-04-25 Seagate Technology Llc Structure to achieve sensitivity and linear density in tunneling GMR heads using orthogonal magnetic alignments
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US7105372B2 (en) 2004-01-20 2006-09-12 Headway Technologies, Inc. Magnetic tunneling junction film structure with process determined in-plane magnetic anisotropy
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US7556870B2 (en) 2005-08-15 2009-07-07 Hitachi Global Storage Technologies Netherlands B.V. Antiferromagnetically coupled media for magnetic recording with weak coupling layer
JP2007080904A (ja) * 2005-09-12 2007-03-29 Tdk Corp 磁気抵抗効果素子及びその製造方法
US7859034B2 (en) 2005-09-20 2010-12-28 Grandis Inc. Magnetic devices having oxide antiferromagnetic layer next to free ferromagnetic layer
JP4886268B2 (ja) 2005-10-28 2012-02-29 株式会社東芝 高周波発振素子、ならびにそれを用いた車載レーダー装置、車間通信装置および情報端末間通信装置
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US6542341B1 (en) * 1999-11-18 2003-04-01 International Business Machines Corporation Magnetic sensors having an antiferromagnetic layer exchange-coupled to a free layer
GB2400720A (en) * 2003-04-18 2004-10-20 Alps Electric Co Ltd Magnetoresistive head with antiferromagnetic layer in the rear of the element
US7053430B2 (en) * 2003-11-12 2006-05-30 Honeywell International Inc. Antiferromagnetic stabilized storage layers in GMRAM storage devices
CN1934652A (zh) * 2004-02-13 2007-03-21 弘世科技公司 用于提供利用自旋转移的磁性元件的热辅助切换的方法和系统
US20070176251A1 (en) * 2006-01-27 2007-08-02 Se-Chung Oh Magnetic memory device and method of fabricating the same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105206286A (zh) * 2014-06-30 2015-12-30 株式会社东芝 磁盘装置
CN105206286B (zh) * 2014-06-30 2018-04-17 株式会社东芝 磁盘装置
CN106252503A (zh) * 2015-06-15 2016-12-21 中国科学院物理研究所 基于反铁磁材料的超高频自旋微波振荡器
CN106252503B (zh) * 2015-06-15 2019-03-19 中国科学院物理研究所 基于反铁磁材料的超高频自旋微波振荡器
CN107070408A (zh) * 2015-11-19 2017-08-18 三星电子株式会社 自旋扭矩振荡器、包括其的电子设备和其制造方法

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IN2012DE00855A (enExample) 2015-08-28
US20120242416A1 (en) 2012-09-27
JP2012204837A (ja) 2012-10-22
KR20120108944A (ko) 2012-10-05
EP2503564A1 (en) 2012-09-26
US8525602B2 (en) 2013-09-03

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Application publication date: 20121003