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AU2001272657A1 - Antiferromagnetically coupled magnetic recording media - Google Patents

Antiferromagnetically coupled magnetic recording media

Info

Publication number
AU2001272657A1
AU2001272657A1 AU2001272657A AU7265701A AU2001272657A1 AU 2001272657 A1 AU2001272657 A1 AU 2001272657A1 AU 2001272657 A AU2001272657 A AU 2001272657A AU 7265701 A AU7265701 A AU 7265701A AU 2001272657 A1 AU2001272657 A1 AU 2001272657A1
Authority
AU
Australia
Prior art keywords
magnetic recording
recording media
coupled magnetic
antiferromagnetically coupled
antiferromagnetically
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
AU2001272657A
Inventor
Eric Edward Fullerton
David Thomas Margulies
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of AU2001272657A1 publication Critical patent/AU2001272657A1/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
    • G11B5/66—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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12465—All metal or with adjacent metals having magnetic properties, or preformed fiber orientation coordinate with shape
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12806—Refractory [Group IVB, VB, or VIB] metal-base component
    • Y10T428/12826—Group VIB metal-base component
    • Y10T428/12847—Cr-base component
    • Y10T428/12854—Next to Co-, Fe-, or Ni-base component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/2495—Thickness [relative or absolute]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264—Up to 3 mils
    • Y10T428/265—1 mil or less
AU2001272657A 2000-08-04 2001-07-23 Antiferromagnetically coupled magnetic recording media Abandoned AU2001272657A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/631,908 US6537684B1 (en) 2000-08-04 2000-08-04 Antiferromagnetically coupled magnetic recording media with boron-free first ferromagnetic film as nucleation layer
US09631908 2000-08-04
PCT/GB2001/003302 WO2002013190A1 (en) 2000-08-04 2001-07-23 Antiferromagnetically coupled magnetic recording media

Publications (1)

Publication Number Publication Date
AU2001272657A1 true AU2001272657A1 (en) 2002-02-18

Family

ID=24533273

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001272657A Abandoned AU2001272657A1 (en) 2000-08-04 2001-07-23 Antiferromagnetically coupled magnetic recording media

Country Status (10)

Country Link
US (1) US6537684B1 (en)
EP (1) EP1309969B1 (en)
JP (1) JP2004506289A (en)
KR (1) KR100611088B1 (en)
CN (1) CN1240056C (en)
AU (1) AU2001272657A1 (en)
DE (1) DE60126953T2 (en)
MY (1) MY127245A (en)
TW (1) TW540034B (en)
WO (1) WO2002013190A1 (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60037041T2 (en) * 2000-11-29 2008-08-14 Fujitsu Ltd., Kawasaki MAGNETIC RECORDING MEDIUM AND MAGNETIC STORAGE DEVICE
JPWO2002045081A1 (en) * 2000-11-29 2004-04-15 富士通株式会社 Magnetic recording medium and magnetic storage device
US6689497B1 (en) * 2001-01-08 2004-02-10 Seagate Technology Llc Stabilized AFC magnetic recording media with reduced lattice mismatch between spacer layer(s) and magnetic layers
JP4746778B2 (en) * 2001-06-28 2011-08-10 株式会社日立グローバルストレージテクノロジーズ Magnetic recording medium and magnetic storage device using the same
US6828036B1 (en) * 2001-08-21 2004-12-07 Seagate Technology Llc Anti-ferromagnetically coupled magnetic media with combined interlayer + first magnetic layer
JP3749460B2 (en) 2001-09-07 2006-03-01 富士通株式会社 Magnetic recording medium and magnetic storage device using the same
US20030108774A1 (en) * 2001-09-28 2003-06-12 Hoya Corporation Magnetic recording medium
JP2003162813A (en) * 2001-11-28 2003-06-06 Hitachi Ltd Magnetic recording medium and magnetic storage device
CN100505046C (en) * 2001-11-30 2009-06-24 希捷科技有限公司 Antiferromagnetically Coupled Perpendicular Magnetic Recording Media
US7842409B2 (en) 2001-11-30 2010-11-30 Seagate Technology Llc Anti-ferromagnetically coupled perpendicular magnetic recording media with oxide
US6899959B2 (en) * 2002-02-12 2005-05-31 Komag, Inc. Magnetic media with improved exchange coupling
JP2003263714A (en) * 2002-03-06 2003-09-19 Fujitsu Ltd Magnetic recording medium and magnetic storage device
DE60216152T2 (en) * 2002-09-06 2007-02-22 Fujitsu Ltd., Kawasaki MAGNETIC RECORDING MEDIUM AND MAGNETIC STORAGE DEVICE
JP2004110941A (en) * 2002-09-19 2004-04-08 Hitachi Ltd Magnetic recording medium and magnetic storage device
US6835476B2 (en) * 2003-03-11 2004-12-28 Hitachi Global Storage Technologies Netherlands B.V. Antiferromagnetically coupled magnetic recording media with CoCrFe alloy first ferromagnetic film
US7399523B2 (en) * 2003-05-07 2008-07-15 Meiji University Legal Person Spinel ferrimagnetic particles and magnetic recording medium
JP2005032353A (en) * 2003-07-14 2005-02-03 Fujitsu Ltd Magnetic recording medium, magnetic storage device, and recording method of magnetic recording medium
JP2005251373A (en) * 2004-02-02 2005-09-15 Fujitsu Ltd Magnetic recording medium, manufacturing method thereof, and magnetic storage device
US7427446B2 (en) * 2004-02-02 2008-09-23 Fujitsu Limited Magnetic recording medium with antiparallel magnetic layers and CrN based underlayer, magnetic storage apparatus and method of producing magnetic recording medium
US9117476B1 (en) * 2004-05-27 2015-08-25 Seagate Technology, Llc Magnetic media on a plastic substrate
JP2005353236A (en) * 2004-06-14 2005-12-22 Fujitsu Ltd Magnetic recording medium, method for manufacturing the same, and magnetic storage device
JP2006024261A (en) * 2004-07-07 2006-01-26 Fujitsu Ltd Magnetic recording medium, method for manufacturing the same, and magnetic disk drive
JP2006134533A (en) * 2004-11-09 2006-05-25 Fujitsu Ltd Magnetic recording medium and magnetic storage device
JP2006185489A (en) * 2004-12-27 2006-07-13 Fujitsu Ltd Magnetic recording medium and magnetic storage device
US20140272470A1 (en) 2013-03-15 2014-09-18 Seagate Technology Llc Energy Assisted Segregation Material
US12272392B2 (en) 2022-08-25 2025-04-08 Western Digital Technologies, Inc. Media structure with selected segregants configured to improve heat-assisted magnetic recording
US12412598B2 (en) 2023-09-01 2025-09-09 Western Digital Technologies, Inc. Media underlayer structure for heat-assisted magnetic recording and media fabrication methods therefor
US12308056B2 (en) 2023-10-12 2025-05-20 Western Digital Technologies, Inc. Magnetic recording medium with magnesium-titanium oxide (MTO) layer formed using pulsed direct current sputter deposition

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5147732A (en) * 1988-09-28 1992-09-15 Hitachi, Ltd. Longitudinal magnetic recording media and magnetic memory units
US5180640A (en) * 1990-10-01 1993-01-19 Komag, Inc. Magnetic recording medium comprising a magnetic alloy layer of cobalt nickel, platinum and chromium formed directly on a nickel alloy amorphous underlayer
KR0148842B1 (en) * 1993-07-22 1998-10-15 가나이 쯔또무 Magnetic recording medium, process for producing the same and magnetic recording system
US6156404A (en) * 1996-10-18 2000-12-05 Komag, Inc. Method of making high performance, low noise isotropic magnetic media including a chromium underlayer
US5900324A (en) * 1994-10-27 1999-05-04 Hoya Corporation Magnetic recording media, methods for producing the same and magnetic recorders
JP2911783B2 (en) * 1995-06-28 1999-06-23 ホーヤ株式会社 Magnetic recording medium and method of manufacturing the same
US5523173A (en) * 1994-12-27 1996-06-04 International Business Machines Corporation Magnetic recording medium with a CoPtCrB alloy thin film with a 1120 crystallographic orientation deposited on an underlayer with 100 orientation
US6077586A (en) * 1997-07-15 2000-06-20 International Business Machines Corporation Laminated thin film disk for longitudinal recording
US6403241B1 (en) * 1999-04-14 2002-06-11 Seagate Technology, Inc. CoCrPtB medium with a 1010 crystallographic orientation
US6280813B1 (en) * 1999-10-08 2001-08-28 International Business Machines Corporation Magnetic recording media with antiferromagnetically coupled ferromagnetic films as the recording layer

Also Published As

Publication number Publication date
EP1309969A1 (en) 2003-05-14
TW540034B (en) 2003-07-01
DE60126953D1 (en) 2007-04-12
CN1240056C (en) 2006-02-01
WO2002013190A1 (en) 2002-02-14
JP2004506289A (en) 2004-02-26
KR20030024815A (en) 2003-03-26
KR100611088B1 (en) 2006-08-10
US6537684B1 (en) 2003-03-25
CN1446354A (en) 2003-10-01
EP1309969B1 (en) 2007-02-28
MY127245A (en) 2006-11-30
DE60126953T2 (en) 2007-11-22

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