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WO2008105095A1 - 垂直磁気記録媒体および磁気記録装置 - Google Patents

垂直磁気記録媒体および磁気記録装置 Download PDF

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Publication number
WO2008105095A1
WO2008105095A1 PCT/JP2007/053827 JP2007053827W WO2008105095A1 WO 2008105095 A1 WO2008105095 A1 WO 2008105095A1 JP 2007053827 W JP2007053827 W JP 2007053827W WO 2008105095 A1 WO2008105095 A1 WO 2008105095A1
Authority
WO
WIPO (PCT)
Prior art keywords
soft magnetic
recording medium
lining layer
vertical
magnetic
Prior art date
Application number
PCT/JP2007/053827
Other languages
English (en)
French (fr)
Other versions
WO2008105095A8 (ja
Inventor
Antony Ajan
Original Assignee
Fujitsu Limited
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 Fujitsu Limited filed Critical Fujitsu Limited
Priority to PCT/JP2007/053827 priority Critical patent/WO2008105095A1/ja
Priority to JP2009501096A priority patent/JPWO2008105095A1/ja
Publication of WO2008105095A1 publication Critical patent/WO2008105095A1/ja
Publication of WO2008105095A8 publication Critical patent/WO2008105095A8/ja
Priority to US12/488,035 priority patent/US20090257147A1/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

Landscapes

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

Abstract

　垂直磁気記録媒体は、基板と、前記基板上に形成され、残留磁化がゼロの軟磁性裏打ち層と、前記軟磁性裏打ち層上に形成された強磁性記録層と、を含み、前記軟磁性裏打ち層は、互いにそれぞれの非磁性中間層を隔てて積層された少なくとも３層の軟磁性層を含み、前記軟磁性裏打ち層中、少なくとも一対の軟磁性層は強磁性結合を生じ、前記軟磁性裏打ち層中、少なくとも一対の軟磁性層は反強磁性結合を生じる。
PCT/JP2007/053827 2007-02-28 2007-02-28 垂直磁気記録媒体および磁気記録装置 WO2008105095A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP2007/053827 WO2008105095A1 (ja) 2007-02-28 2007-02-28 垂直磁気記録媒体および磁気記録装置
JP2009501096A JPWO2008105095A1 (ja) 2007-02-28 2007-02-28 垂直磁気記録媒体および磁気記録装置
US12/488,035 US20090257147A1 (en) 2007-02-28 2009-06-19 Perpendicular magnetic recording medium and magnetic recording apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/053827 WO2008105095A1 (ja) 2007-02-28 2007-02-28 垂直磁気記録媒体および磁気記録装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/488,035 Continuation US20090257147A1 (en) 2007-02-28 2009-06-19 Perpendicular magnetic recording medium and magnetic recording apparatus

Publications (2)

Publication Number Publication Date
WO2008105095A1 true WO2008105095A1 (ja) 2008-09-04
WO2008105095A8 WO2008105095A8 (ja) 2008-12-18

Family

ID=39720939

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/053827 WO2008105095A1 (ja) 2007-02-28 2007-02-28 垂直磁気記録媒体および磁気記録装置

Country Status (3)

Country Link
US (1) US20090257147A1 (ja)
JP (1) JPWO2008105095A1 (ja)
WO (1) WO2008105095A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012203924A (ja) * 2011-03-23 2012-10-22 Showa Denko Kk 磁気記録媒体及び磁気記録再生装置
JP2014078315A (ja) * 2008-11-26 2014-05-01 Seagate Technology Llc 磁気記憶装置

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8309239B2 (en) * 2007-03-30 2012-11-13 Wd Media (Singapore) Pte. Ltd. Perpendicular magnetic recording medium and method of manufacturing the same
US8252367B2 (en) * 2007-12-19 2012-08-28 Hitachi Global Storage Technologies Netherlands B.V. Methods and apparatus to fabricate soft magnetic film with preferred uniaxial anisotropy for perpendicular recording
KR101580225B1 (ko) * 2009-03-13 2015-12-24 시게이트 테크놀로지 엘엘씨 수직자기기록매체
US9401170B1 (en) 2009-11-24 2016-07-26 WD Media, LLC Perpendicular magnetic recording medium with epitaxial exchange coupling layer
US8173282B1 (en) * 2009-12-11 2012-05-08 Wd Media, Inc. Perpendicular magnetic recording medium with an ordering temperature reducing layer
JP5617112B2 (ja) * 2010-01-14 2014-11-05 独立行政法人物質・材料研究機構 垂直磁気記録媒体及びその製造方法
US8541116B2 (en) * 2010-10-18 2013-09-24 HGST Netherlands B.V. Patterned perpendicular magnetic recording disk drive and medium with patterned exchange bridge layer below the data islands
US8940418B1 (en) 2010-12-23 2015-01-27 WD Media, LLC Dynamic spring media with multiple exchange coupled hard-soft magnetic layers
US8268461B1 (en) * 2011-03-16 2012-09-18 Hitachi Global Storage Technologies Netherlands B.V. Patterned perpendicular magnetic recording medium with ultrathin oxide film and reduced switching field distribution
US9685184B1 (en) 2014-09-25 2017-06-20 WD Media, LLC NiFeX-based seed layer for magnetic recording media

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004118894A (ja) * 2002-09-24 2004-04-15 Victor Co Of Japan Ltd ディスク状磁気記録媒体
JP2006309922A (ja) * 2005-03-31 2006-11-09 Fujitsu Ltd 磁気記録媒体及び磁気記録装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58166531A (ja) * 1982-03-26 1983-10-01 Hitachi Ltd 垂直磁気記録媒体
US6660357B1 (en) * 2000-02-04 2003-12-09 Seagate Technology Llc Perpendicular magnetic recording media with laminated soft magnetic underlayer
US6641935B1 (en) * 2000-11-20 2003-11-04 Seagate Technology Llc Perpendicular recording media with soft magnetic superlattice underlayer
JP2002358618A (ja) * 2000-12-28 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
JP2003045015A (ja) * 2001-07-27 2003-02-14 Anelva Corp 垂直磁気記録媒体及び垂直磁気記録媒体製造方法
US6777113B2 (en) * 2001-08-14 2004-08-17 Seagate Technology Llc Multilayer films for optimized soft underlayer magnetic properties of dual layer perpendicular recording media
JP2004079043A (ja) * 2002-08-13 2004-03-11 Fuji Electric Holdings Co Ltd 垂直磁気記録媒体
JP2006120270A (ja) * 2004-10-25 2006-05-11 Hitachi Global Storage Technologies Netherlands Bv 垂直磁気記録媒体及びその製造方法
JP2007066416A (ja) * 2005-08-31 2007-03-15 Hitachi Global Storage Technologies Netherlands Bv 垂直磁気記録媒体の製造方法及び垂直磁気記録媒体、磁気ディスク装置
US7666529B2 (en) * 2005-09-22 2010-02-23 Seagate Technology Llc Anti-ferromagnetically coupled soft underlayer
JP4570599B2 (ja) * 2006-09-21 2010-10-27 シーゲイト テクノロジー エルエルシー 反強磁性結合ソフト磁性基層の垂直磁気記録メディア

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004118894A (ja) * 2002-09-24 2004-04-15 Victor Co Of Japan Ltd ディスク状磁気記録媒体
JP2006309922A (ja) * 2005-03-31 2006-11-09 Fujitsu Ltd 磁気記録媒体及び磁気記録装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014078315A (ja) * 2008-11-26 2014-05-01 Seagate Technology Llc 磁気記憶装置
JP2012203924A (ja) * 2011-03-23 2012-10-22 Showa Denko Kk 磁気記録媒体及び磁気記録再生装置

Also Published As

Publication number Publication date
JPWO2008105095A1 (ja) 2010-06-03
US20090257147A1 (en) 2009-10-15
WO2008105095A8 (ja) 2008-12-18

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