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WO2008146351A1 - Vertical magnetic recording medium and a storage device having it, method for producing vertical magnetic recording medium - Google Patents

Vertical magnetic recording medium and a storage device having it, method for producing vertical magnetic recording medium Download PDF

Info

Publication number
WO2008146351A1
WO2008146351A1 PCT/JP2007/060787 JP2007060787W WO2008146351A1 WO 2008146351 A1 WO2008146351 A1 WO 2008146351A1 JP 2007060787 W JP2007060787 W JP 2007060787W WO 2008146351 A1 WO2008146351 A1 WO 2008146351A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
recording medium
magnetic
vertical magnetic
magnetic 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.)
Ceased
Application number
PCT/JP2007/060787
Other languages
French (fr)
Japanese (ja)
Inventor
Hideaki Takahoshi
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/JP2007/060787 priority Critical patent/WO2008146351A1/en
Publication of WO2008146351A1 publication Critical patent/WO2008146351A1/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
    • 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
    • G11B5/8404—Processes or apparatus specially adapted for manufacturing record carriers manufacturing base layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

A soft magnetic lining layer (16) on which a magnetic path for circulating the magnetic flux from a magnetic head back to the head is formed, a nonmagnetic intermediate layer (22) as a crystal orientation control layer, and a recording layer (24) as a magnetic layer are formed sequentially on a nonmagnetic substrate (12) wherein the easy direction of magnetization is perpendicular to the film surface of the recording layer (24), the recording layer (24) traps a domain wall and has a domain wall pin stop site (25) formed by irradiating ions, and a region defined by the domain wall pin stop site (25) serves as a recording bit. In such a vertical magnetic recording medium (10), the recording layer (24) has smooth surfaces (24a, 24b) perpendicular to the laminating direction of the vertical magnetic recording medium (10) in a part where the domain wall pin stop site (25) is formed, and an ion guard layer (18) for preventing ion implantation from the nonmagnetic intermediate layer (22) to the soft magnetic lining layer (16) is provided between the nonmagnetic intermediate layer (22) and the soft magnetic lining layer (16).
PCT/JP2007/060787 2007-05-28 2007-05-28 Vertical magnetic recording medium and a storage device having it, method for producing vertical magnetic recording medium Ceased WO2008146351A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/060787 WO2008146351A1 (en) 2007-05-28 2007-05-28 Vertical magnetic recording medium and a storage device having it, method for producing vertical magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/060787 WO2008146351A1 (en) 2007-05-28 2007-05-28 Vertical magnetic recording medium and a storage device having it, method for producing vertical magnetic recording medium

Publications (1)

Publication Number Publication Date
WO2008146351A1 true WO2008146351A1 (en) 2008-12-04

Family

ID=40074637

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/060787 Ceased WO2008146351A1 (en) 2007-05-28 2007-05-28 Vertical magnetic recording medium and a storage device having it, method for producing vertical magnetic recording medium

Country Status (1)

Country Link
WO (1) WO2008146351A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009116413A1 (en) * 2008-03-17 2009-09-24 Hoya株式会社 Magnetic recording medium and method for manufacturing the same
WO2010010843A1 (en) * 2008-07-22 2010-01-28 富士通株式会社 Method of manufacturing magnetic recording medium, magnetic recording medium, and information storage device
JP2010153002A (en) * 2008-12-26 2010-07-08 Ulvac Japan Ltd Method for manufacturing magnetic storage medium, magnetic storage medium, and information storage device
JP2010277616A (en) * 2009-05-26 2010-12-09 Hitachi Global Storage Technologies Netherlands Bv Magnetic recording medium and method for manufacturing the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002100019A (en) * 2000-09-26 2002-04-05 Hitachi Ltd Magnetic recording media
JP2004272982A (en) * 2003-03-06 2004-09-30 Fuji Electric Device Technology Co Ltd Method for manufacturing perpendicular magnetic recording medium and perpendicular magnetic recording medium
JP2006309841A (en) * 2005-04-27 2006-11-09 Tdk Corp Magnetic pattern forming method, magnetic recording medium, magnetic recording and reproducing device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002100019A (en) * 2000-09-26 2002-04-05 Hitachi Ltd Magnetic recording media
JP2004272982A (en) * 2003-03-06 2004-09-30 Fuji Electric Device Technology Co Ltd Method for manufacturing perpendicular magnetic recording medium and perpendicular magnetic recording medium
JP2006309841A (en) * 2005-04-27 2006-11-09 Tdk Corp Magnetic pattern forming method, magnetic recording medium, magnetic recording and reproducing device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009116413A1 (en) * 2008-03-17 2009-09-24 Hoya株式会社 Magnetic recording medium and method for manufacturing the same
US8414966B2 (en) 2008-03-17 2013-04-09 Wd Media (Singapore) Pte. Ltd. Magnetic recording medium and manufacturing method of the same
US9093100B2 (en) 2008-03-17 2015-07-28 Wd Media (Singapore) Pte. Ltd. Magnetic recording medium including tailored exchange coupling layer and manufacturing method of the same
WO2010010843A1 (en) * 2008-07-22 2010-01-28 富士通株式会社 Method of manufacturing magnetic recording medium, magnetic recording medium, and information storage device
JP2010027159A (en) * 2008-07-22 2010-02-04 Fujitsu Ltd Method of manufacturing magnetic recording medium, magnetic recording medium, and information storage device
JP2010153002A (en) * 2008-12-26 2010-07-08 Ulvac Japan Ltd Method for manufacturing magnetic storage medium, magnetic storage medium, and information storage device
JP2010277616A (en) * 2009-05-26 2010-12-09 Hitachi Global Storage Technologies Netherlands Bv Magnetic recording medium and method for manufacturing the same

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