DE602005011365D1 - Magnetische Aufzeichnungsmittel für schräge Aufzeichnung - Google Patents

Magnetische Aufzeichnungsmittel für schräge Aufzeichnung

Info

Publication number
DE602005011365D1
DE602005011365D1 DE602005011365T DE602005011365T DE602005011365D1 DE 602005011365 D1 DE602005011365 D1 DE 602005011365D1 DE 602005011365 T DE602005011365 T DE 602005011365T DE 602005011365 T DE602005011365 T DE 602005011365T DE 602005011365 D1 DE602005011365 D1 DE 602005011365D1
Authority
DE
Germany
Prior art keywords
recording
oblique
magnetic recording
magnetic
recording means
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
Application number
DE602005011365T
Other languages
English (en)
Inventor
Barry Cushing Stipe
Jan-Ulrich Thiele
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HGST Netherlands BV
Original Assignee
Hitachi Global Storage Technologies Netherlands BV
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 Technologies Netherlands BV filed Critical Hitachi Global Storage Technologies Netherlands BV
Publication of DE602005011365D1 publication Critical patent/DE602005011365D1/de
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G11B5/674—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 differing macroscopic or microscopic structures, e.g. differing crystalline lattices, varying atomic structures or differing roughnesses
    • 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
    • G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
    • 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
    • G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
    • G11B5/657—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing inorganic, non-oxide compound of Si, N, P, B, H or C, e.g. in metal alloy or compound
    • 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
    • G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
    • G11B5/658—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing oxygen, e.g. molecular oxygen or magnetic oxide
    • 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
    • G11B5/667—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers including a soft magnetic layer
    • 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
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
    • 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
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
    • G11B5/7377—Physical structure of underlayer, e.g. texture
    • 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
    • G11B5/82—Disk carriers
    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/743—Patterned record carriers, wherein the magnetic recording layer is patterned into magnetic isolated data islands, e.g. discrete tracks
    • 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
DE602005011365T 2004-06-30 2005-05-03 Magnetische Aufzeichnungsmittel für schräge Aufzeichnung Expired - Fee Related DE602005011365D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/882,881 US7405011B2 (en) 2004-06-30 2004-06-30 Magnetic recording media for tilted recording

Publications (1)

Publication Number Publication Date
DE602005011365D1 true DE602005011365D1 (de) 2009-01-15

Family

ID=34939676

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005011365T Expired - Fee Related DE602005011365D1 (de) 2004-06-30 2005-05-03 Magnetische Aufzeichnungsmittel für schräge Aufzeichnung

Country Status (5)

Country Link
US (1) US7405011B2 (de)
EP (1) EP1615205B1 (de)
JP (1) JP2006019000A (de)
CN (1) CN100373461C (de)
DE (1) DE602005011365D1 (de)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7282278B1 (en) * 2003-07-02 2007-10-16 Seagate Technology Llc Tilted recording media with L10 magnetic layer
JP2006286105A (ja) * 2005-03-31 2006-10-19 Fujitsu Ltd 磁気記録媒体および磁気記憶装置
US7468214B2 (en) * 2005-07-05 2008-12-23 Seagate Technology Llc Tilted magnetic recording media
JP4444182B2 (ja) * 2005-07-26 2010-03-31 株式会社東芝 磁化容易軸方向を傾斜させた垂直磁気記録媒体、その製造法、及びそれを含む磁気記録再生装置
US7528457B2 (en) * 2006-04-14 2009-05-05 Magic Technologies, Inc. Method to form a nonmagnetic cap for the NiFe(free) MTJ stack to enhance dR/R
JP2008010036A (ja) * 2006-06-27 2008-01-17 Sharp Corp 情報記録媒体及びその製造方法、情報記録再生装置並びに情報記録媒体作製装置
US7595520B2 (en) * 2006-07-31 2009-09-29 Magic Technologies, Inc. Capping layer for a magnetic tunnel junction device to enhance dR/R and a method of making the same
JP2008052869A (ja) * 2006-08-28 2008-03-06 Hitachi Global Storage Technologies Netherlands Bv 熱アシスト磁気記録媒体、及び磁気記録再生装置
US8119266B2 (en) * 2007-01-09 2012-02-21 Konica Minolta Opto, Inc. Magnetic recording medium substrate, magnetic recording medium, method for manufacturing magnetic recording medium substrate, and method for manufacturing magnetic recording medium
JP2009158053A (ja) * 2007-12-27 2009-07-16 Hitachi Global Storage Technologies Netherlands Bv 傾斜記録用磁気記録媒体及びその製造方法
JP2009199691A (ja) * 2008-02-22 2009-09-03 Hitachi Global Storage Technologies Netherlands Bv 磁気記録媒体及びその製造方法
JP5276337B2 (ja) * 2008-02-22 2013-08-28 エイチジーエスティーネザーランドビーブイ 磁気記録媒体の製造方法
JP5264209B2 (ja) * 2008-02-22 2013-08-14 エイチジーエスティーネザーランドビーブイ 磁気記録媒体及びその製造方法
US8722214B2 (en) 2008-12-22 2014-05-13 Seagate Technology Llc Hybrid grain boundary additives in granular media
US8268462B2 (en) * 2008-12-22 2012-09-18 Seagate Technology Llc Hybrid grain boundary additives
US8795764B1 (en) * 2010-10-29 2014-08-05 Seagate Technology Llc Magnetic layer
JP5857448B2 (ja) * 2011-05-24 2016-02-10 昭和電工株式会社 磁気記録媒体及びその製造方法、並びに磁気記録再生装置
US8565050B1 (en) * 2011-12-20 2013-10-22 WD Media, LLC Heat assisted magnetic recording media having moment keeper layer
US10026432B1 (en) 2012-11-20 2018-07-17 Seagate Technology Llc Interlayer structure for heat assisted magnetic recording
US9472228B2 (en) 2013-05-28 2016-10-18 HGST Netherlands B.V. Perpendicular magnetic recording media having novel magnetic under-layer structure
US9177585B1 (en) 2013-10-23 2015-11-03 WD Media, LLC Magnetic media capable of improving magnetic properties and thermal management for heat-assisted magnetic recording
US8976484B1 (en) 2013-10-24 2015-03-10 HGST Netherlands B.V. Magnetic recording with tilted media in the cross track direction
JP6439869B2 (ja) 2015-06-02 2018-12-19 富士電機株式会社 磁気記録媒体の製造方法
US10347281B2 (en) * 2015-06-02 2019-07-09 Western Digital Technologies, Inc. Structures and methods for templated growth of high areal density heat assisted magnetic recording media
CN107735835B (zh) 2016-01-12 2019-09-27 富士电机株式会社 磁记录介质
WO2017122593A1 (ja) 2016-01-12 2017-07-20 富士電機株式会社 磁気記録媒体およびこれを製造する方法
EP3445881A4 (de) 2016-04-20 2019-09-04 Arconic Inc. Fcc-materialien aus aluminium, kobalt, eisen und nickel und daraus hergestellte produkte
WO2017184778A1 (en) 2016-04-20 2017-10-26 Arconic Inc. Fcc materials of aluminum, cobalt and nickel, and products made therefrom
WO2021240796A1 (ja) * 2020-05-29 2021-12-02 Tdk株式会社 磁性膜、磁気抵抗効果素子及び磁性膜の製造方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5605733A (en) * 1992-01-22 1997-02-25 Hitachi, Ltd. Magnetic recording medium, method for its production, and system for its use
US6007623A (en) * 1997-08-29 1999-12-28 International Business Machines Corporation Method for making horizontal magnetic recording media having grains of chemically-ordered FePt or CoPt
US20020098381A1 (en) * 1999-06-04 2002-07-25 Kevin Robert Coffey Thin film magnetic recording medium having high coercivity
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
US6562489B2 (en) * 1999-11-12 2003-05-13 Fujitsu Limited Magnetic recording medium and magnetic storage apparatus
US6524730B1 (en) * 1999-11-19 2003-02-25 Seagate Technology, Llc NiFe-containing soft magnetic layer design for multilayer media
US6531202B1 (en) * 1999-11-29 2003-03-11 Seagate Technology Llc Perpendicular magnetic recording media with reduced-noise soft magnetic underlayer
JP4033795B2 (ja) * 2002-11-28 2008-01-16 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搭載した磁気記録装置
US7092209B2 (en) * 2004-03-01 2006-08-15 Hitachi Global Storage Technologies Netherlands B.V. Longitudinal magnetic recording using magnetic media with a soft underlayer

Also Published As

Publication number Publication date
US7405011B2 (en) 2008-07-29
CN100373461C (zh) 2008-03-05
EP1615205B1 (de) 2008-12-03
JP2006019000A (ja) 2006-01-19
US20060002026A1 (en) 2006-01-05
CN1725303A (zh) 2006-01-25
EP1615205A1 (de) 2006-01-11

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee