SG118278A1 - Magnetic anisotropy adjusted laminated magnetic thin films for magnetic recording - Google Patents

Magnetic anisotropy adjusted laminated magnetic thin films for magnetic recording

Info

Publication number
SG118278A1
SG118278A1 SG200403854A SG200403854A SG118278A1 SG 118278 A1 SG118278 A1 SG 118278A1 SG 200403854 A SG200403854 A SG 200403854A SG 200403854 A SG200403854 A SG 200403854A SG 118278 A1 SG118278 A1 SG 118278A1
Authority
SG
Singapore
Prior art keywords
magnetic
thin films
anisotropy
recording
adjusted
Prior art date
Application number
SG200403854A
Other languages
English (en)
Inventor
Tang Kai
Original Assignee
Hitachi Global Storage Tech
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Global Storage Tech filed Critical Hitachi Global Storage Tech
Publication of SG118278A1 publication Critical patent/SG118278A1/en

Links

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
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
    • G11B5/676—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers having magnetic layers separated by a nonmagnetic layer, e.g. antiferromagnetic layer, Cu layer or coupling layer
    • G11B5/678—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers having magnetic layers separated by a nonmagnetic layer, e.g. antiferromagnetic layer, Cu layer or coupling layer having three or more magnetic 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
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
    • G11B5/672—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers having different compositions in a plurality of magnetic layers, e.g. layer compositions having differing elemental components or differing proportions of elements
    • 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
    • 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
    • G11B2005/001—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure
    • 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
    • G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
    • 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
    • G11B5/09—Digital recording
    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • 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
    • G11B5/851—Coating a support with a magnetic layer by sputtering
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic 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
    • Y10T428/1107—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
    • Y10T428/1193—Magnetic recording head with interlaminar component [e.g., adhesion layer, etc.]
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/24992—Density or compression of components
SG200403854A 2003-07-24 2004-06-30 Magnetic anisotropy adjusted laminated magnetic thin films for magnetic recording SG118278A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/628,011 US6939626B2 (en) 2003-07-24 2003-07-24 Magnetic anisotropy adjusted laminated magnetic thin films for magnetic recording

Publications (1)

Publication Number Publication Date
SG118278A1 true SG118278A1 (en) 2006-01-27

Family

ID=33490925

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200403854A SG118278A1 (en) 2003-07-24 2004-06-30 Magnetic anisotropy adjusted laminated magnetic thin films for magnetic recording

Country Status (8)

Country Link
US (1) US6939626B2 (de)
EP (1) EP1501080B1 (de)
JP (1) JP2005056551A (de)
KR (1) KR20050012153A (de)
CN (1) CN100389458C (de)
DE (1) DE602004006343T2 (de)
SG (1) SG118278A1 (de)
TW (1) TW200506865A (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4540557B2 (ja) * 2004-07-05 2010-09-08 富士電機デバイステクノロジー株式会社 垂直磁気記録媒体
US7419730B2 (en) * 2004-08-31 2008-09-02 Hitachi Global Storage Technologies Netherlands B.V. Magnetic recording disk with antiferromagnetically coupled master layer including copper
US20060099927A1 (en) * 2004-11-11 2006-05-11 Nvidia Corporation Integrated wireless transceiver and audio processor
US7425377B2 (en) * 2005-02-04 2008-09-16 Hitachi Global Storage Technologies Netherlands B.V. Incoherently-reversing magnetic laminate with exchange coupled ferromagnetic layers
US7687157B2 (en) * 2005-02-04 2010-03-30 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular recording media having an exchange-spring structure
US7514161B2 (en) * 2005-02-15 2009-04-07 Hitachi Global Storage Technologies Netherlands B.V. Laminated antiferromagnetically coupled media with decoupled magnetic layer
US20060210834A1 (en) * 2005-03-18 2006-09-21 Do Hoa V Laminated magnetic thin films with sublayers for magnetic recording
US20070019328A1 (en) * 2005-07-25 2007-01-25 Mohammad Mirzamaani Laminated magnetic recording media with two sublayers in the lower magnetic layer
US20070037015A1 (en) * 2005-08-10 2007-02-15 Hitachi Global Storage Technologies Netherlands B.V. Laminated magnetic media using Ta containing magnetic alloy as the upper magnetic layer
US8263239B2 (en) * 2006-06-26 2012-09-11 HGST Netherlands B.V. Laminated magnetic thin films for magnetic recording with weak ferromagnetic coupling
JP2008108328A (ja) * 2006-10-24 2008-05-08 Fujitsu Ltd 磁気記録媒体および磁気記憶装置
KR100785034B1 (ko) 2006-12-06 2007-12-11 삼성전자주식회사 자구벽 이동을 이용한 정보 저장 장치, 그 제조방법 및 그동작방법
KR100846510B1 (ko) 2006-12-22 2008-07-17 삼성전자주식회사 자구벽 이동을 이용한 정보 저장 장치 및 그 제조방법
KR101274203B1 (ko) * 2007-01-02 2013-06-14 삼성전자주식회사 자구 벽 이동을 이용한 정보 저장 매체 및 그 제조 방법
JP2009087500A (ja) * 2007-10-03 2009-04-23 Showa Denko Kk 垂直磁気記録媒体および磁気記録再生装置
US8470463B2 (en) 2011-04-22 2013-06-25 Seagate Technology Llc Magnetic shield with in-plane anisotropy
US8675315B2 (en) 2011-07-29 2014-03-18 Seagate Technology Llc Magnetic sensor with anisotropic liner
US10204671B2 (en) 2017-03-10 2019-02-12 Simon Fraser University Applications of non-collinearly coupled magnetic layers
US11087791B1 (en) * 2020-05-05 2021-08-10 Western Digital Technologies, Inc. Data storage device with voltage-assisted magnetic recording (VAMR) for high density magnetic recording

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Publication number Priority date Publication date Assignee Title
US5051288A (en) 1989-03-16 1991-09-24 International Business Machines Corporation Thin film magnetic recording disk comprising alternating layers of a CoNi or CoPt alloy and a non-magnetic spacer layer
US5462796A (en) 1992-05-21 1995-10-31 Stormedia, Inc. Flash chromium interlayer for improved hard disk magnetic recording performance
US5851643A (en) * 1993-11-11 1998-12-22 Hitachi, Ltd. Magnetic recording media and magnetic recording read-back system which uses such media
US6403203B2 (en) 1997-05-29 2002-06-11 Hitachi, Ltd. Magnetic recording medium and magnetic recording apparatus using the same
US6304081B1 (en) 1997-12-11 2001-10-16 Seagate Technology Llc System and method for non-destructive measurement of dynamic coercivity effects
US6280813B1 (en) 1999-10-08 2001-08-28 International Business Machines Corporation Magnetic recording media with antiferromagnetically coupled ferromagnetic films as the recording layer
US6773834B2 (en) 1999-10-08 2004-08-10 Hitachi Global Storage Technologies Netherlands B.V. Laminated magnetic recording media with antiferromagnetically coupled layer as one of the individual magnetic layers in the laminate
US6372330B1 (en) * 1999-10-08 2002-04-16 International Business Machines Corporation Laminated magnetic recording media with antiferromagnetically coupled layers as the individual magnetic layers in the laminate
US6777112B1 (en) * 2000-10-10 2004-08-17 Seagate Technology Llc Stabilized recording media including coupled discontinuous and continuous magnetic layers
EP1359570A4 (de) * 2000-11-29 2004-04-14 Fujitsu Ltd Magnetisches aufzeichnungsmedium und magnetischer speicherbaustein
JP2002279618A (ja) 2001-03-19 2002-09-27 Hitachi Ltd 磁気記録媒体
US20020192506A1 (en) * 2001-06-04 2002-12-19 International Business Machines Corporation `Thermal Spring' magnetic recording media for writing using magnetic and thermal gradients
JP4746778B2 (ja) 2001-06-28 2011-08-10 株式会社日立グローバルストレージテクノロジーズ 磁気記録媒体及びそれを用いた磁気記憶装置
JP2003168206A (ja) * 2001-11-29 2003-06-13 Hitachi Ltd 磁気記録媒体及びその製造方法ならびにこれを用いた磁気記憶装置

Also Published As

Publication number Publication date
US20050019609A1 (en) 2005-01-27
EP1501080A1 (de) 2005-01-26
DE602004006343D1 (de) 2007-06-21
DE602004006343T2 (de) 2008-01-10
CN1577507A (zh) 2005-02-09
KR20050012153A (ko) 2005-01-31
EP1501080B1 (de) 2007-05-09
JP2005056551A (ja) 2005-03-03
TW200506865A (en) 2005-02-16
US6939626B2 (en) 2005-09-06
CN100389458C (zh) 2008-05-21

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