JP5361259B2 - スピントルク発振子、磁気記録ヘッド、磁気ヘッドアセンブリ及び磁気記録装置 - Google Patents

スピントルク発振子、磁気記録ヘッド、磁気ヘッドアセンブリ及び磁気記録装置 Download PDF

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Publication number
JP5361259B2
JP5361259B2 JP2008161025A JP2008161025A JP5361259B2 JP 5361259 B2 JP5361259 B2 JP 5361259B2 JP 2008161025 A JP2008161025 A JP 2008161025A JP 2008161025 A JP2008161025 A JP 2008161025A JP 5361259 B2 JP5361259 B2 JP 5361259B2
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Japan
Prior art keywords
magnetic
layer
magnetic recording
spin torque
torque oscillator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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JP2008161025A
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English (en)
Japanese (ja)
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JP2010003354A5 (enExample
JP2010003354A (ja
Inventor
健一郎 山田
仁志 岩崎
雅幸 高岸
知己 船山
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Toshiba Corp
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Toshiba Corp
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Priority to JP2008161025A priority Critical patent/JP5361259B2/ja
Priority to US12/382,940 priority patent/US8687321B2/en
Publication of JP2010003354A publication Critical patent/JP2010003354A/ja
Publication of JP2010003354A5 publication Critical patent/JP2010003354A5/ja
Application granted granted Critical
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Expired - Fee Related legal-status Critical Current
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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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109—Details
    • G11B5/313—Disposition of layers
    • G11B5/3133—Disposition of layers including layers not usually being a part of the electromagnetic transducer structure and providing additional features, e.g. for improving heat radiation, reduction of power dissipation, adaptations for measurement or indication of gap depth or other properties of the structure
    • G11B5/314—Disposition of layers including layers not usually being a part of the electromagnetic transducer structure and providing additional features, e.g. for improving heat radiation, reduction of power dissipation, adaptations for measurement or indication of gap depth or other properties of the structure where the layers are extra layers normally not provided in the transducing structure, e.g. optical layers
    • 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
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • 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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109—Details
    • G11B5/313—Disposition of layers
    • G11B5/3143—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding
    • G11B5/3146—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding magnetic layers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B15/00—Generation of oscillations using galvano-magnetic devices, e.g. Hall-effect devices, or using superconductivity effects
    • H03B15/006—Generation of oscillations using galvano-magnetic devices, e.g. Hall-effect devices, or using superconductivity effects using spin transfer effects or giant magnetoresistance
    • 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
    • G11B2005/0002—Special dispositions or recording techniques
    • G11B2005/0005—Arrangements, methods or circuits
    • 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
    • G11B2005/0002—Special dispositions or recording techniques
    • G11B2005/0005—Arrangements, methods or circuits
    • G11B2005/0024—Microwave assisted recording
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/11—Magnetic recording head
    • Y10T428/1107—Magnetoresistive
    • Y10T428/1121—Multilayer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/11—Magnetic recording head
    • Y10T428/1107—Magnetoresistive
    • Y10T428/1143—Magnetoresistive with defined structural feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/11—Magnetic recording head
    • Y10T428/115—Magnetic layer composition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/11—Magnetic recording head
    • Y10T428/1171—Magnetic recording head with defined laminate structural detail

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Hall/Mr Elements (AREA)
  • Magnetic Record Carriers (AREA)
  • Magnetic Heads (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
JP2008161025A 2008-06-19 2008-06-19 スピントルク発振子、磁気記録ヘッド、磁気ヘッドアセンブリ及び磁気記録装置 Expired - Fee Related JP5361259B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2008161025A JP5361259B2 (ja) 2008-06-19 2008-06-19 スピントルク発振子、磁気記録ヘッド、磁気ヘッドアセンブリ及び磁気記録装置
US12/382,940 US8687321B2 (en) 2008-06-19 2009-03-26 Magnetic head assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008161025A JP5361259B2 (ja) 2008-06-19 2008-06-19 スピントルク発振子、磁気記録ヘッド、磁気ヘッドアセンブリ及び磁気記録装置

Related Child Applications (1)

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JP2013150389A Division JP2013251042A (ja) 2013-07-19 2013-07-19 スピントルク発振子、磁気記録ヘッド、磁気ヘッドアセンブリ及び磁気記録装置

Publications (3)

Publication Number Publication Date
JP2010003354A JP2010003354A (ja) 2010-01-07
JP2010003354A5 JP2010003354A5 (enExample) 2012-02-16
JP5361259B2 true JP5361259B2 (ja) 2013-12-04

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Country Link
US (1) US8687321B2 (enExample)
JP (1) JP5361259B2 (enExample)

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JP2009080875A (ja) 2007-09-25 2009-04-16 Toshiba Corp 磁気ヘッド及び磁気記録装置
JP4929108B2 (ja) * 2007-09-25 2012-05-09 株式会社東芝 磁気ヘッドおよび磁気記録装置
JP5361259B2 (ja) 2008-06-19 2013-12-04 株式会社東芝 スピントルク発振子、磁気記録ヘッド、磁気ヘッドアセンブリ及び磁気記録装置
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
JP2010040126A (ja) 2008-08-06 2010-02-18 Toshiba Corp 磁気記録ヘッド、磁気ヘッドアセンブリ及び磁気記録装置
JP5173750B2 (ja) 2008-11-06 2013-04-03 株式会社東芝 スピントルク発振子、磁気記録ヘッド、磁気ヘッドアセンブリ及び磁気記録装置
JP5558698B2 (ja) 2008-11-28 2014-07-23 株式会社東芝 磁気記録ヘッド、磁気ヘッドアセンブリ、磁気記録装置及び磁気記録方法
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