WO2009028447A1 - 磁気記録媒体および磁気記録再生装置 - Google Patents

磁気記録媒体および磁気記録再生装置 Download PDF

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Publication number
WO2009028447A1
WO2009028447A1 PCT/JP2008/065089 JP2008065089W WO2009028447A1 WO 2009028447 A1 WO2009028447 A1 WO 2009028447A1 JP 2008065089 W JP2008065089 W JP 2008065089W WO 2009028447 A1 WO2009028447 A1 WO 2009028447A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic recording
layer
recording medium
magnetic
intermediate layer
Prior art date
Application number
PCT/JP2008/065089
Other languages
English (en)
French (fr)
Inventor
Gohei Kurokawa
Yuzo Sasaki
Tatsu Komatsuda
Atsushi Hashimoto
Original Assignee
Showa Denko K.K.
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 Showa Denko K.K. filed Critical Showa Denko K.K.
Priority to CN200880104378A priority Critical patent/CN101785052A/zh
Priority to US12/674,602 priority patent/US8133601B2/en
Publication of WO2009028447A1 publication Critical patent/WO2009028447A1/ja

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
    • G11B5/73—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
    • G11B5/7379—Seed layer, e.g. at least one non-magnetic layer is specifically adapted as a seed or seeding 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
    • G11B5/7369—Two or more non-magnetic underlayers, e.g. seed layers or barrier layers
    • G11B5/737—Physical structure of underlayer, e.g. texture

Landscapes

  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

　磁性結晶粒の結晶粒径の微細化と高密度化を両立させながら、中間層～シード層の非磁性層の膜厚を薄くしても磁気記録層の垂直配向性を維持することで、高密度の情報の記録再生が可能な磁気記録媒体、その製造方法、および磁気記録再生装置が提供される。そのような磁気記録媒体は、非磁性基板上に、少なくとも裏打ち層と配向制御層、磁気記録層、保護層を有する垂直磁気記録媒体であって、配向制御層は複数層から構成され、基板側からシード層および中間層を含み、シード層と中間層の材料選択として、アモルファスであるシード層材料に対する中間層材料の接触角が１０度～１００度の範囲にあるものを用いる。
PCT/JP2008/065089 2007-08-31 2008-08-25 磁気記録媒体および磁気記録再生装置 WO2009028447A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN200880104378A CN101785052A (zh) 2007-08-31 2008-08-25 磁记录介质和磁记录再生装置
US12/674,602 US8133601B2 (en) 2007-08-31 2008-08-25 Magnetic recording medium and magnetic recording and reproducing apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-226399 2007-08-31
JP2007226399A JP2009059431A (ja) 2007-08-31 2007-08-31 磁気記録媒体および磁気記録再生装置

Publications (1)

Publication Number Publication Date
WO2009028447A1 true WO2009028447A1 (ja) 2009-03-05

Family

ID=40387167

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/065089 WO2009028447A1 (ja) 2007-08-31 2008-08-25 磁気記録媒体および磁気記録再生装置

Country Status (4)

Country Link
US (1) US8133601B2 (ja)
JP (1) JP2009059431A (ja)
CN (1) CN101785052A (ja)
WO (1) WO2009028447A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9412404B2 (en) 2009-12-15 2016-08-09 HGST Netherlands B.V. Onset layer for perpendicular magnetic recording media

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012009086A (ja) * 2010-06-22 2012-01-12 Wd Media (Singapore) Pte. Ltd 垂直磁気記録媒体及びその製造方法
JP5734599B2 (ja) * 2010-08-17 2015-06-17 山陽特殊製鋼株式会社 ＣｒＴｉ系合金スパッタリング用ターゲット材およびそれらを使用した垂直磁気記録媒体の製造方法
JP5964121B2 (ja) * 2012-04-18 2016-08-03 山陽特殊製鋼株式会社 磁気記録媒体に用いる密着膜層用ＣｒＴｉ系合金およびスパッタリング用ターゲット材並びにそれを使用した垂直磁気記録媒体
JP6307879B2 (ja) * 2013-05-17 2018-04-11 ソニー株式会社 磁気記録媒体およびその製造方法
JP6205871B2 (ja) 2013-06-05 2017-10-04 ソニー株式会社 磁気記録媒体
JP6144570B2 (ja) * 2013-08-05 2017-06-07 昭和電工株式会社 磁気記録媒体の製造方法、磁気記録媒体及び磁気記録再生装置
JP2015111482A (ja) * 2013-12-06 2015-06-18 株式会社東芝 垂直磁気記録媒体、及び磁気記録再生装置
JP6083389B2 (ja) * 2014-01-07 2017-02-22 ソニー株式会社 磁気記録媒体
JP6221907B2 (ja) * 2014-03-31 2017-11-01 ソニー株式会社 磁気記録媒体
JP6303733B2 (ja) 2014-03-31 2018-04-04 ソニー株式会社 磁気記録媒体およびその製造方法、ならびに成膜装置
SG11201602850SA (en) * 2014-04-03 2016-05-30 Fuji Electric Co Ltd Magnetic recording medium
US10354707B2 (en) 2016-04-14 2019-07-16 Headway Technologies, Inc. Composite seed layer
SG10202101868SA (en) * 2017-03-10 2021-03-30 Fuji Electric Co Ltd Magnetic recording medium

Citations (6)

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Publication number Priority date Publication date Assignee Title
JPS61113122A (ja) * 1984-11-07 1986-05-31 Hitachi Ltd 垂直磁気記録媒体
JP2003115106A (ja) * 2001-07-31 2003-04-18 Fuji Electric Co Ltd 垂直磁気記録媒体およびその製造方法
JP2005092970A (ja) * 2003-09-17 2005-04-07 Hitachi Maxell Ltd 磁気記録媒体及び磁気記憶装置
JP2006155865A (ja) * 2004-10-29 2006-06-15 Ken Takahashi 垂直磁気記録媒体および垂直磁気記録再生装置
JP2006309919A (ja) * 2005-03-30 2006-11-09 Fujitsu Ltd 垂直磁気記録媒体、その製造方法および磁気記憶装置
JP2007102833A (ja) * 2005-09-30 2007-04-19 Hoya Corp 垂直磁気記録媒体

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* Cited by examiner, † Cited by third party
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JP3822387B2 (ja) 1999-06-17 2006-09-20 株式会社東芝 磁気記録媒体
US20030049498A1 (en) 2001-07-31 2003-03-13 Manabu Shimosato Perpendicular magnetic recording medium and method of manufacturing the same
US7141315B2 (en) * 2002-07-31 2006-11-28 Showa Denko K.K. Magnetic recording medium, method of manufacturing the same, and magnetic recording and reproduction apparatus
JP2005190517A (ja) 2003-12-24 2005-07-14 Hitachi Global Storage Technologies Netherlands Bv 垂直磁気記録媒体及び磁気記憶装置
JP4021435B2 (ja) * 2004-10-25 2007-12-12 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、その製造方法及び磁気記録再生装置
JP2006260633A (ja) * 2005-03-15 2006-09-28 Fujitsu Ltd 磁気記録媒体および磁気記憶装置
CN100440323C (zh) * 2005-03-30 2008-12-03 富士通株式会社 垂直磁记录介质及其制造方法和磁存储装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61113122A (ja) * 1984-11-07 1986-05-31 Hitachi Ltd 垂直磁気記録媒体
JP2003115106A (ja) * 2001-07-31 2003-04-18 Fuji Electric Co Ltd 垂直磁気記録媒体およびその製造方法
JP2005092970A (ja) * 2003-09-17 2005-04-07 Hitachi Maxell Ltd 磁気記録媒体及び磁気記憶装置
JP2006155865A (ja) * 2004-10-29 2006-06-15 Ken Takahashi 垂直磁気記録媒体および垂直磁気記録再生装置
JP2006309919A (ja) * 2005-03-30 2006-11-09 Fujitsu Ltd 垂直磁気記録媒体、その製造方法および磁気記憶装置
JP2007102833A (ja) * 2005-09-30 2007-04-19 Hoya Corp 垂直磁気記録媒体

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9412404B2 (en) 2009-12-15 2016-08-09 HGST Netherlands B.V. Onset layer for perpendicular magnetic recording media

Also Published As

Publication number Publication date
US8133601B2 (en) 2012-03-13
JP2009059431A (ja) 2009-03-19
US20110111257A1 (en) 2011-05-12
CN101785052A (zh) 2010-07-21

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