WO2009017062A1 - 垂直磁気記録媒体、その製造方法および磁気記録再生装置 - Google Patents

垂直磁気記録媒体、その製造方法および磁気記録再生装置 Download PDF

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Publication number
WO2009017062A1
WO2009017062A1 PCT/JP2008/063418 JP2008063418W WO2009017062A1 WO 2009017062 A1 WO2009017062 A1 WO 2009017062A1 JP 2008063418 W JP2008063418 W JP 2008063418W WO 2009017062 A1 WO2009017062 A1 WO 2009017062A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic recording
layer
recording medium
vertical magnetic
structured
Prior art date
Application number
PCT/JP2008/063418
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 CN200880109310A priority Critical patent/CN101809660A/zh
Priority to US12/671,452 priority patent/US20100215991A1/en
Publication of WO2009017062A1 publication Critical patent/WO2009017062A1/ja

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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
    • G11B5/74—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
    • G11B5/62—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
    • 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

Abstract

　非磁性基板上に、少なくとも裏打ち層とシード層と中間層と垂直磁気記録層をこの順で含む垂直磁気記録媒体であって、前記シード層はｈｃｐ構造の（００２）結晶配向層であり、また、前記中間層は、ｂｃｃ構造の（１１０）結晶配向層からなる第１中間層と、ｈｃｐ構造の（００２）結晶配向層からなる第２中間層をこの順で含む磁気記録媒体。また、前記ｂｃｃ構造の（１１０）結晶配向層は、好ましくは、Ｃｒを６０原子％以上含む構造とする。この磁気記録媒体は、垂直磁気記録層の結晶粒径の分離、結晶粒径の微細化と、垂直配向性とが両立することで、高密度の情報の記録再生が可能であるという特性を有する。
PCT/JP2008/063418 2007-07-30 2008-07-25 垂直磁気記録媒体、その製造方法および磁気記録再生装置 WO2009017062A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN200880109310A CN101809660A (zh) 2007-07-30 2008-07-25 垂直磁记录介质、其制造方法和磁记录再生装置
US12/671,452 US20100215991A1 (en) 2007-07-30 2008-07-25 Perpendicular magnetic recording medium, process for producing perpendicular magnetic recording medium, and magnetic recording/reproducing apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007197316A JP2009032356A (ja) 2007-07-30 2007-07-30 垂直磁気記録媒体、その製造方法および磁気記録再生装置
JP2007-197316 2007-07-30

Publications (1)

Publication Number Publication Date
WO2009017062A1 true WO2009017062A1 (ja) 2009-02-05

Family

ID=40304292

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/063418 WO2009017062A1 (ja) 2007-07-30 2008-07-25 垂直磁気記録媒体、その製造方法および磁気記録再生装置

Country Status (5)

Country Link
US (1) US20100215991A1 (ja)
JP (1) JP2009032356A (ja)
CN (1) CN101809660A (ja)
TW (1) TW200923926A (ja)
WO (1) WO2009017062A1 (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5425530B2 (ja) * 2009-06-10 2014-02-26 山陽特殊製鋼株式会社 垂直磁気記録媒体における軟磁性膜層用ＣｏＦｅＮｉ系合金およびスパッタリングターゲット材
JP2012195027A (ja) 2011-03-15 2012-10-11 Toshiba Corp 磁気記録媒体、その製造方法、及び磁気記録再生装置
US20130108862A1 (en) * 2011-10-26 2013-05-02 Mohd Fadzli Anwar Hassan Low-E Panel with Improved Layer Texturing and Method for Forming the Same
WO2014058291A1 (en) 2012-10-08 2014-04-17 Fuji Electric (Malaysia) Sdn Bhd Perpendicular magnetic recording medium
JP5444447B2 (ja) * 2012-12-21 2014-03-19 株式会社東芝 磁気記録媒体、その製造方法、及び磁気記録再生装置
US20150348579A1 (en) * 2012-12-27 2015-12-03 Canon Anelva Corporation Magnetic recording medium and method for manufacturing the same
JP6180755B2 (ja) * 2013-02-25 2017-08-16 山陽特殊製鋼株式会社 磁気記録用Ｃｒ合金およびスパッタリング用ターゲット材並びにそれらを用いた垂直磁気記録媒体
US20170154647A1 (en) * 2015-11-30 2017-06-01 WD Media, LLC Stacked intermediate layer for perpendicular magnetic recording media

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04321919A (ja) * 1991-04-22 1992-11-11 Hitachi Ltd 面内磁気記録媒体
JPH0817031A (ja) * 1994-06-28 1996-01-19 Hitachi Ltd 垂直磁気記録媒体およびそれを用いた磁気記憶装置
JP2001006158A (ja) * 1999-06-17 2001-01-12 Toshiba Corp 磁気記録媒体
JP2002123930A (ja) * 2000-10-12 2002-04-26 Hitachi Maxell Ltd 磁気記録媒体
JP2002358615A (ja) * 2001-02-28 2002-12-13 Showa Denko Kk 磁気記録媒体、その製造方法、および磁気記録再生装置
JP2004227717A (ja) * 2003-01-24 2004-08-12 Fuji Electric Device Technology Co Ltd 磁気記録媒体およびその製造方法
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

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6699600B2 (en) * 2001-02-28 2004-03-02 Showa Denko K.K. Magnetic recording medium, method of manufacture therefor, and apparatus for magnetic recording and reproducing recordings
US7056606B2 (en) * 2001-02-28 2006-06-06 Showa Denko K.K. Magnetic recording medium, method manufacture therefor, and apparatus for magnetic reproducing and reproducing recordings
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
JP2006134533A (ja) * 2004-11-09 2006-05-25 Fujitsu Ltd 磁気記録媒体および磁気記憶装置
WO2006090508A1 (en) * 2005-02-25 2006-08-31 Showa Denko K.K. Magnetic recording medium, production process thereof, and magnetic recording and reproduction appratus
WO2006090510A1 (en) * 2005-02-25 2006-08-31 Showa Denko K.K. Magnetic recording medium, production method thereof, and magnetic recording and reproducing apparatus
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
JP2007234164A (ja) * 2006-03-02 2007-09-13 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
US7662492B2 (en) * 2007-03-02 2010-02-16 Hitachi Global Storage Techologies Netherlands, B.V. Perpendicular magnetic recording medium having a multi-layer interlayer that includes BCC material

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04321919A (ja) * 1991-04-22 1992-11-11 Hitachi Ltd 面内磁気記録媒体
JPH0817031A (ja) * 1994-06-28 1996-01-19 Hitachi Ltd 垂直磁気記録媒体およびそれを用いた磁気記憶装置
JP2001006158A (ja) * 1999-06-17 2001-01-12 Toshiba Corp 磁気記録媒体
JP2002123930A (ja) * 2000-10-12 2002-04-26 Hitachi Maxell Ltd 磁気記録媒体
JP2002358615A (ja) * 2001-02-28 2002-12-13 Showa Denko Kk 磁気記録媒体、その製造方法、および磁気記録再生装置
JP2004227717A (ja) * 2003-01-24 2004-08-12 Fuji Electric Device Technology Co Ltd 磁気記録媒体およびその製造方法
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

Also Published As

Publication number Publication date
JP2009032356A (ja) 2009-02-12
CN101809660A (zh) 2010-08-18
US20100215991A1 (en) 2010-08-26
TW200923926A (en) 2009-06-01

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