[go: up one dir, main page]

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

Info

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
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.)
Ceased
Application number
PCT/JP2007/053827
Other languages
English (en)
French (fr)
Other versions
WO2008105095A8 (ja
Inventor
Antony Ajan
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Ltd filed Critical Fujitsu Ltd
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
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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 Ceased 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 Ceased 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
WO2008123445A1 (ja) * 2007-03-30 2008-10-16 Hoya Corporation 垂直磁気記録媒体およびその製造方法
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
WO2008105095A8 (ja) 2008-12-18
JPWO2008105095A1 (ja) 2010-06-03
US20090257147A1 (en) 2009-10-15

Similar Documents

Publication Publication Date Title
WO2008105095A8 (ja) 垂直磁気記録媒体および磁気記録装置
WO2009014205A1 (ja) 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
KR101566291B1 (ko) 결합된 측면 실드를 갖는 자기 엘리먼트
MY128786A (en) Soft magnetic film for perpendicular recording disk
WO2009041423A1 (ja) 垂直磁気記録媒体およびその製造方法
WO2009019949A1 (ja) 磁気ランダムアクセスメモリ及びその製造方法
WO2009054180A1 (ja) 磁気抵抗効果素子及び磁気ランダムアクセスメモリ
SG170812A1 (en) Perpendicular magnetic recording disk and method of manufacturing the same
WO2008050045A3 (fr) Dispositif magnetique a aimantation perpendiculaire et a couche intercalaire compensatrice d'interactions
MY126680A (en) Laminated magnetic recording media with antiferromagnetically coupled layer as one of the individual magnetic layers in the laminate
WO2009019947A1 (ja) 磁壁ランダムアクセスメモリ
MY122799A (en) Laminated magnetic recording media with antiferromagnetically coupled layers as the individual magnetic layers in the laminate
WO2004044595A3 (en) Magnetic field sensor with augmented magnetoresistive sensing layer
SG165294A1 (en) Perpendicular magnetic recording medium and method of manufacturing the same
WO2009060749A1 (ja) 磁気抵抗効果素子、及び磁気ランダムアクセスメモリ
WO2009044794A1 (ja) 垂直磁気記録媒体および磁気記録再生装置
SG127866A1 (en) Perpendicular magnetic recording media including auniform exchange enhancement layer
JP2013089967A5 (ja)
ATE514096T1 (de) Rauscharmer magnetfeldsensor
MY141059A (en) Perpendicular magnetic recording medium
WO2003085674A3 (en) Synthetic-ferrimagnet sense-layer for high density mram applications
SG127814A1 (en) Perpendicular magnetic recording medium and perpendicular magnetic recording/reproducing apparatus
TW200744083A (en) Magnetic recording medium and magnetic storage unit
WO2008126136A1 (ja) 磁気ヘッド
SG115781A1 (en) Magnetic recording disk with antiferromagnetically-coupled magnetic layer having multiple ferromagnetically-coupled lower layers

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07737546

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2009501096

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07737546

Country of ref document: EP

Kind code of ref document: A1