AU2003206135A1 - Magnetic recording medium and magnetic storage apparatus - Google Patents

Magnetic recording medium and magnetic storage apparatus

Info

Publication number
AU2003206135A1
AU2003206135A1 AU2003206135A AU2003206135A AU2003206135A1 AU 2003206135 A1 AU2003206135 A1 AU 2003206135A1 AU 2003206135 A AU2003206135 A AU 2003206135A AU 2003206135 A AU2003206135 A AU 2003206135A AU 2003206135 A1 AU2003206135 A1 AU 2003206135A1
Authority
AU
Australia
Prior art keywords
magnetic
recording medium
storage apparatus
magnetic recording
magnetic storage
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.)
Abandoned
Application number
AU2003206135A
Inventor
E. Noel Abarra
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
Publication of AU2003206135A1 publication Critical patent/AU2003206135A1/en
Abandoned 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
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
    • G11B5/657—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing inorganic, non-oxide compound of Si, N, P, B, H or C, e.g. in metal alloy or compound
    • 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
    • G11B5/672—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 different compositions in a plurality of magnetic layers, e.g. layer compositions having differing elemental components or differing proportions of elements
    • 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
    • G11B5/62—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Magnetic Record Carriers (AREA)
AU2003206135A 2003-02-06 2003-02-06 Magnetic recording medium and magnetic storage apparatus Abandoned AU2003206135A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2003/001264 WO2004070710A1 (en) 2003-02-06 2003-02-06 Magnetic recording medium and magnetic storage apparatus

Publications (1)

Publication Number Publication Date
AU2003206135A1 true AU2003206135A1 (en) 2004-08-30

Family

ID=32843981

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2003206135A Abandoned AU2003206135A1 (en) 2003-02-06 2003-02-06 Magnetic recording medium and magnetic storage apparatus

Country Status (2)

Country Link
AU (1) AU2003206135A1 (en)
WO (1) WO2004070710A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006260633A (en) * 2005-03-15 2006-09-28 Fujitsu Ltd Magnetic recording medium and magnetic storage device
US20070190364A1 (en) * 2006-02-14 2007-08-16 Heraeus, Inc. Ruthenium alloy magnetic media and sputter targets
US20080131735A1 (en) * 2006-12-05 2008-06-05 Heraeus Incorporated Ni-X, Ni-Y, and Ni-X-Y alloys with or without oxides as sputter targets for perpendicular magnetic recording
JP2020155442A (en) 2019-03-18 2020-09-24 キオクシア株式会社 Magnetic device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2167448B (en) * 1984-11-02 1988-10-19 Hitachi Ltd Perpendicular magnetic recording medium
JP2561655B2 (en) * 1987-01-29 1996-12-11 株式会社日立製作所 In-plane magnetic recording medium
US5723198A (en) * 1993-06-11 1998-03-03 Hitachi, Ltd. Multi-layered magnetic recording medium and magnetic recording system employing the same
US5830569A (en) * 1995-09-12 1998-11-03 Kabushiki Kaisha Toshiba Magnetic recording medium containing CoPtO-based alloy magnetic film
US5922442A (en) * 1996-04-26 1999-07-13 Hmt Technology Corporation Magnetic recording medium having a CoCr alloy interlayer of a low saturation magnetization
US6183893B1 (en) * 1998-04-06 2001-02-06 Hitachi, Ltd. Perpendicular magnetic recording medium and magnetic storage apparatus using the same
US6432562B1 (en) * 1998-09-25 2002-08-13 Seagate Technology Llc Magnetic recording medium with a nialru seedlayer
US6303217B1 (en) * 1998-10-02 2001-10-16 Hmt Technology, Corporation Longitudinal recording medium with a dual underlayer
JP2001189005A (en) * 1999-12-28 2001-07-10 Fujitsu Ltd Magnetic recording medium, method of producing the same and magnetic memory device

Also Published As

Publication number Publication date
WO2004070710A1 (en) 2004-08-19

Similar Documents

Publication Publication Date Title
AU2003211248A1 (en) Magnetic recording medium and magnetic recording cartridge
SG115792A1 (en) Perpendicular magnetic recording medium and magnetic recording/reproducing apparatus
GB2422949B (en) Magnetic recording medium
SG120914A1 (en) Magnetic recording medium
SG115516A1 (en) Magnetic recording medium
AU2002212743A1 (en) Magnetic recording medium and magnetic recording apparatus
HK1121574A1 (en) Recording and/or reproducing apparatus
HK1108204A1 (en) Recording and/or reproducing apparatus
SG123698A1 (en) Perpendicular magnetic recording medium and magnetic recording/reproduction apparatus
SG115799A1 (en) Magnetic recording medium and magnetic recording apparatus
HK1089859A1 (en) Recording apparatus and reproducing apparatus
SG118341A1 (en) Magnetic recording medium and magnetic recording/reproducing apparatus using the same
SG105009A1 (en) Perpendicular magnetic recording medium and magnetic recording/reproduction apparatus
SG110083A1 (en) Magnetic recording medium and magnetic recording/reproducing apparatus
SG139751A1 (en) Information recording medium and recording/reproducing apparatus
SG119376A1 (en) Magnetic recording media and magnetic recording and reproducing apparatus
EP1471506A4 (en) Information medium and information recording/reproduction apparatus
HK1076531A1 (en) Information recording method and information recording medium
SG110081A1 (en) Magnetic recording medium and magnetic recording/reproducing apparatus
SG110082A1 (en) Perpendicular magnetic recording medium and magnetic recording/reproducing apparatus
AU2003203394A1 (en) Magnetic recording medium and magnetic storage apparatus
SG128594A1 (en) Magnetic recording medium and magnetic recording/reproducing apparatus
AU2003201763A1 (en) Magnetic recording medium and magnetic storage apparatus
AU2002334408A1 (en) Magnetic recording medium and magnetic storage apparatus
SG112882A1 (en) Perpendicular magnetic recording medium and magnetic recording/reproduction apparatus

Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase