CN102136275B - 自旋转矩振荡磁致电阻传感器和磁致电阻多传感器阵列 - Google Patents
自旋转矩振荡磁致电阻传感器和磁致电阻多传感器阵列 Download PDFInfo
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- CN102136275B CN102136275B CN201010585947.5A CN201010585947A CN102136275B CN 102136275 B CN102136275 B CN 102136275B CN 201010585947 A CN201010585947 A CN 201010585947A CN 102136275 B CN102136275 B CN 102136275B
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Classifications
-
- 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
-
- 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
-
- 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
- G01R33/1284—Spin resolved measurements; Influencing spins during measurements, e.g. in spintronics devices
-
- 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
- G11B5/332—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using thin films
-
- 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
- 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
- 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)
- Power Engineering (AREA)
- Nanotechnology (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Hall/Mr Elements (AREA)
- Magnetic Heads (AREA)
Abstract
Description
Claims (22)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/636,108 US8164861B2 (en) | 2009-12-11 | 2009-12-11 | Spin torque oscillator sensor employing antiparallel coupled oscilation layers |
US12/636,108 | 2009-12-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102136275A CN102136275A (zh) | 2011-07-27 |
CN102136275B true CN102136275B (zh) | 2016-08-24 |
Family
ID=44142641
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201010585947.5A Expired - Fee Related CN102136275B (zh) | 2009-12-11 | 2010-12-13 | 自旋转矩振荡磁致电阻传感器和磁致电阻多传感器阵列 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8164861B2 (zh) |
JP (2) | JP2011124574A (zh) |
CN (1) | CN102136275B (zh) |
Families Citing this family (49)
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JP5377893B2 (ja) * | 2008-06-19 | 2013-12-25 | 株式会社東芝 | 磁気ヘッドアセンブリおよび磁気記録再生装置 |
JP5142923B2 (ja) * | 2008-09-30 | 2013-02-13 | 株式会社東芝 | 磁性発振素子、磁気センサ及び磁気記録再生装置 |
JP4686630B1 (ja) * | 2009-11-30 | 2011-05-25 | 株式会社東芝 | 磁気ヘッド、およびこれを備えたディスク装置 |
JP5059924B2 (ja) * | 2010-09-16 | 2012-10-31 | 株式会社日立製作所 | スピントルク発振器、並びにそれを搭載した磁気記録ヘッド及び磁気記録装置 |
JP5161951B2 (ja) * | 2010-11-26 | 2013-03-13 | 株式会社東芝 | スピントルク発振子および磁気記録装置 |
JP5412415B2 (ja) * | 2010-12-08 | 2014-02-12 | 株式会社日立製作所 | 磁気記録ヘッド及びその製造方法、及び磁気ディスク装置 |
US8320080B1 (en) * | 2011-05-31 | 2012-11-27 | Hitachi Global Storage Technologies Netherlands B.V. | Three-terminal spin-torque oscillator (STO) |
US8462461B2 (en) | 2011-07-05 | 2013-06-11 | HGST Netherlands B.V. | Spin-torque oscillator (STO) with magnetically damped free layer |
US8553362B2 (en) * | 2011-09-06 | 2013-10-08 | HGST Netherlands B.V. | Magnetic recording head with adjacent track interference suppresion by novel microwave-assisted magnetic recording element |
JP5740259B2 (ja) * | 2011-09-12 | 2015-06-24 | 株式会社東芝 | スピントルク発振素子再生ヘッド及び磁気記録再生装置 |
JP5892767B2 (ja) * | 2011-10-28 | 2016-03-23 | 株式会社東芝 | 磁気ヘッド、磁気センサ、および磁気記録再生装置 |
JP5808273B2 (ja) * | 2012-03-01 | 2015-11-10 | 株式会社日立製作所 | 磁気ヘッド、ヘッド駆動制御装置、磁気記憶装置、その制御方法 |
JP5701801B2 (ja) * | 2012-03-22 | 2015-04-15 | 株式会社東芝 | 磁気記録ヘッド、これを備えたヘッドジンバルアッセンブリ、およびディスク装置 |
US9142232B2 (en) * | 2012-08-22 | 2015-09-22 | Seagate Technology Llc | Magnetic stack with separated contacts |
JP2014116036A (ja) * | 2012-12-06 | 2014-06-26 | Toshiba Corp | 磁気ヘッド、磁気ヘッドアセンブリ、及び磁気記録再生装置 |
US8902544B2 (en) * | 2012-12-13 | 2014-12-02 | HGST Netherlands B.V. | Spin torque oscillator (STO) reader with soft magnetic side shields |
JP5814908B2 (ja) * | 2012-12-21 | 2015-11-17 | 株式会社東芝 | 磁気ヘッド、及び磁気記録再生装置 |
US9355654B1 (en) | 2012-12-21 | 2016-05-31 | Western Digital Technologies, Inc. | Spin torque oscillator for microwave assisted magnetic recording with increased damping |
US8908330B1 (en) | 2012-12-21 | 2014-12-09 | Western Digital Technologies, Inc. | Spin torque oscillator for microwave assisted magnetic recording with optimal geometries |
JP5579285B2 (ja) * | 2013-01-21 | 2014-08-27 | 株式会社東芝 | 磁気抵抗効果素子、磁気ヘッド、磁気ヘッドアセンブリおよび磁気記録再生装置 |
WO2014151820A1 (en) * | 2013-03-15 | 2014-09-25 | Magarray, Inc. | Magnetic tunnel junction sensors and methods for using the same |
JP2014203489A (ja) * | 2013-04-05 | 2014-10-27 | 株式会社東芝 | 記録ヘッド、およびこれを備えたディスク装置 |
JP2015008026A (ja) * | 2013-06-25 | 2015-01-15 | 株式会社東芝 | 磁気記録再生装置 |
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JP2015072726A (ja) * | 2013-10-02 | 2015-04-16 | 株式会社東芝 | 磁気記録ヘッド、およびこれを備えたディスク装置 |
US8995088B1 (en) | 2013-10-22 | 2015-03-31 | HGST Netherlands B.V. | Heat sink for a spin torque oscillator (STO) in microwave assisted magnetic recording (MAMR) |
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JP2017188179A (ja) * | 2016-04-06 | 2017-10-12 | 株式会社東芝 | 磁気記録再生装置および磁気記録再生方法 |
US10601368B2 (en) | 2016-05-19 | 2020-03-24 | Seagate Technology Llc | Solid state microwave generator |
US10110165B2 (en) * | 2016-05-19 | 2018-10-23 | Seagate Technology Llc | Solid state microwave generator |
US10720570B2 (en) * | 2017-06-12 | 2020-07-21 | Western Digital Technologies, Inc. | Magnetic sensor using spin hall effect |
JP2019027786A (ja) | 2017-07-25 | 2019-02-21 | Tdk株式会社 | 磁場センサ |
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US10381548B1 (en) | 2018-02-08 | 2019-08-13 | Sandisk Technologies Llc | Multi-resistance MRAM |
JP6759260B2 (ja) * | 2018-03-01 | 2020-09-23 | 株式会社東芝 | 磁気ヘッド及び磁気記録再生装置 |
US10719298B1 (en) * | 2019-02-25 | 2020-07-21 | Western Digital Technologies, Inc. | System for generating random noise with a magnetic device |
JP6897702B2 (ja) * | 2019-03-20 | 2021-07-07 | Tdk株式会社 | 磁場検出装置および磁場検出方法 |
EP3992654A1 (en) | 2020-10-29 | 2022-05-04 | Hitachi, Ltd. | Spin-torque oscillator magnetic field sensor |
US11514936B1 (en) | 2021-06-25 | 2022-11-29 | Western Digital Technologies, Inc. | Read head having one or more antiferromagnetic layers below soft bias side shields, and related methods |
US11514932B1 (en) | 2021-06-25 | 2022-11-29 | Western Digital Technologies, Inc. | Soft bias shape anisotropy stabilization read head design and method of making same |
US11514930B1 (en) | 2021-06-25 | 2022-11-29 | Western Digital Technologies, Inc. | Soft bias side shield stabilized by hard bias for read head design |
US11437061B1 (en) * | 2021-06-25 | 2022-09-06 | Western Digital Technologies, Inc. | Read head having one or more antiferromagnetic layers above soft bias side shields, and related methods |
JP2023050897A (ja) * | 2021-09-30 | 2023-04-11 | ソニーセミコンダクタソリューションズ株式会社 | 磁気検出装置 |
CN114167325B (zh) * | 2021-12-09 | 2022-08-26 | 山东大学 | 一种用于原子磁力计的可控触发无磁加热方法 |
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JP5142923B2 (ja) * | 2008-09-30 | 2013-02-13 | 株式会社東芝 | 磁性発振素子、磁気センサ及び磁気記録再生装置 |
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2009
- 2009-12-11 US US12/636,108 patent/US8164861B2/en not_active Expired - Fee Related
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2010
- 2010-12-08 JP JP2010273596A patent/JP2011124574A/ja active Pending
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JP2008084879A (ja) * | 2006-09-25 | 2008-04-10 | Toshiba Corp | 磁気発振素子、磁気センサ、磁気ヘッド及び磁気記録再生装置 |
CN101399046A (zh) * | 2007-09-25 | 2009-04-01 | 株式会社东芝 | 磁头及磁记录装置 |
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CN102136275A (zh) | 2011-07-27 |
JP2011124574A (ja) | 2011-06-23 |
US8164861B2 (en) | 2012-04-24 |
US20110141629A1 (en) | 2011-06-16 |
JP2014232563A (ja) | 2014-12-11 |
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