CN104952463B - 磁记录介质 - Google Patents

磁记录介质 Download PDF

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Publication number
CN104952463B
CN104952463B CN201510131717.4A CN201510131717A CN104952463B CN 104952463 B CN104952463 B CN 104952463B CN 201510131717 A CN201510131717 A CN 201510131717A CN 104952463 B CN104952463 B CN 104952463B
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CN
China
Prior art keywords
layer
recording medium
magnetic
magnetic recording
recording
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.)
Active
Application number
CN201510131717.4A
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English (en)
Chinese (zh)
Other versions
CN104952463A (zh
Inventor
关口昇
立花淳一
远藤哲雄
尾崎知恵
照井辉
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of CN104952463A publication Critical patent/CN104952463A/zh
Application granted granted Critical
Publication of CN104952463B publication Critical patent/CN104952463B/zh
Active 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
    • G11B5/667—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
    • G11B5/64—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
    • G11B5/676—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
    • 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
    • G11B5/736—Non-magnetic layer under a soft magnetic layer, e.g. between a substrate and a soft magnetic underlayer [SUL] or a keeper 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
    • G11B5/7369—Two or more non-magnetic underlayers, e.g. seed layers or barrier 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
    • G11B5/73—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
    • G11B5/7371—Non-magnetic single underlayer comprising nickel
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
CN201510131717.4A 2014-03-31 2015-03-24 磁记录介质 Active CN104952463B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2014-074953 2014-03-31
JP2014074953A JP6221907B2 (ja) 2014-03-31 2014-03-31 磁気記録媒体
JP2014074953 2014-03-31

Publications (2)

Publication Number Publication Date
CN104952463A CN104952463A (zh) 2015-09-30
CN104952463B true CN104952463B (zh) 2019-10-11

Family

ID=54167073

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510131717.4A Active CN104952463B (zh) 2014-03-31 2015-03-24 磁记录介质

Country Status (3)

Country Link
US (1) US9299378B2 (enExample)
JP (1) JP6221907B2 (enExample)
CN (1) CN104952463B (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6590102B1 (ja) * 2019-04-26 2019-10-16 ソニー株式会社 磁気記録カートリッジ
WO2022209372A1 (ja) * 2021-03-30 2022-10-06 ソニーグループ株式会社 磁気記録媒体

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0991699A (ja) * 1995-09-19 1997-04-04 Victor Co Of Japan Ltd 磁気記録媒体の製造方法及び磁気記録媒体
US20040213949A1 (en) * 2003-01-23 2004-10-28 Hoya Corporation, Hoya Magnetics Singapore Pte. Ltd. Magnetic disk and method of producing the same
JP4169663B2 (ja) * 2003-07-25 2008-10-22 Ｈｏｙａ株式会社 垂直磁気記録媒体
JP4222965B2 (ja) * 2004-04-15 2009-02-12 ヒタチグローバルストレージテクノロジーズネザーランドビーブイ 垂直磁気記録媒体及びその製造方法、磁気記録装置
JP2005353256A (ja) * 2004-05-13 2005-12-22 Fujitsu Ltd 垂直磁気記録媒体およびその製造方法、磁気記憶装置
US20050255336A1 (en) * 2004-05-13 2005-11-17 Fujitsu Limited Perpendicular magnetic recording medium, method of producing the same, and magnetic storage device
JP4327710B2 (ja) * 2004-12-27 2009-09-09 株式会社東芝 垂直磁気記録媒体及び磁気記録再生装置
JP4478834B2 (ja) * 2004-12-28 2010-06-09 株式会社東芝 垂直磁気記録媒体、及びこれを用いた磁気記録再生装置
JP4470881B2 (ja) * 2005-12-27 2010-06-02 昭和電工株式会社 磁気記録媒体、および磁気記録再生装置
JP4499044B2 (ja) * 2006-01-04 2010-07-07 ヒタチグローバルストレージテクノロジーズネザーランドビーブイ 垂直磁気記録媒体及びこれを用いた磁気記憶装置
JP2008034060A (ja) * 2006-07-31 2008-02-14 Fujitsu Ltd 垂直磁気記録媒体および磁気記憶装置
JP2008287808A (ja) 2007-05-18 2008-11-27 Sony Corp 磁気記録媒体
JP2009059431A (ja) * 2007-08-31 2009-03-19 Showa Denko Kk 磁気記録媒体および磁気記録再生装置
SG165294A1 (en) * 2009-03-30 2010-10-28 Wd Media Singapore Pte Ltd Perpendicular magnetic recording medium and method of manufacturing the same
US8703307B2 (en) * 2010-10-12 2014-04-22 HGST Netherlands B.V. Perpendicular magnetic recording medium and magnetic storage apparatus using the same
JP5923324B2 (ja) * 2012-01-31 2016-05-24 昭和電工株式会社 熱アシスト磁気記録媒体及び磁気記録再生装置
US9472228B2 (en) * 2013-05-28 2016-10-18 HGST Netherlands B.V. Perpendicular magnetic recording media having novel magnetic under-layer structure

Also Published As

Publication number Publication date
US20150279402A1 (en) 2015-10-01
JP6221907B2 (ja) 2017-11-01
JP2015197937A (ja) 2015-11-09
US9299378B2 (en) 2016-03-29
CN104952463A (zh) 2015-09-30

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