DE60124888D1 - Magnetisches aufzeichnungsmedium - Google Patents

Magnetisches aufzeichnungsmedium

Info

Publication number
DE60124888D1
DE60124888D1 DE60124888T DE60124888T DE60124888D1 DE 60124888 D1 DE60124888 D1 DE 60124888D1 DE 60124888 T DE60124888 T DE 60124888T DE 60124888 T DE60124888 T DE 60124888T DE 60124888 D1 DE60124888 D1 DE 60124888D1
Authority
DE
Germany
Prior art keywords
layer
magnetic recording
host
magnetic
recording layer
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.)
Expired - Fee Related
Application number
DE60124888T
Other languages
English (en)
Other versions
DE60124888T2 (de
Inventor
Edward Fullerton
Thomas Margulies
Esteban Marinero
Ernst Schabes
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.)
HGST Netherlands BV
Original Assignee
Hitachi Global Storage Technologies Netherlands BV
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 Hitachi Global Storage Technologies Netherlands BV filed Critical Hitachi Global Storage Technologies Netherlands BV
Publication of DE60124888D1 publication Critical patent/DE60124888D1/de
Application granted granted Critical
Publication of DE60124888T2 publication Critical patent/DE60124888T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • 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
DE60124888T 2000-03-27 2001-03-19 Magnetisches aufzeichnungsmedium Expired - Fee Related DE60124888T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US536868 2000-03-27
US09/536,868 US6383668B1 (en) 2000-03-27 2000-03-27 Magnetic recording media with antiferromagnetically coupled host layer for the magnetic recording layer
PCT/GB2001/001180 WO2001073762A2 (en) 2000-03-27 2001-03-19 Magnetic recording medium

Publications (2)

Publication Number Publication Date
DE60124888D1 true DE60124888D1 (de) 2007-01-11
DE60124888T2 DE60124888T2 (de) 2007-09-27

Family

ID=24140247

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60124888T Expired - Fee Related DE60124888T2 (de) 2000-03-27 2001-03-19 Magnetisches aufzeichnungsmedium

Country Status (12)

Country Link
US (1) US6383668B1 (de)
EP (1) EP1275110B1 (de)
JP (1) JP3836373B2 (de)
KR (1) KR100469531B1 (de)
CN (1) CN100373458C (de)
AT (1) ATE347164T1 (de)
AU (1) AU2001240880A1 (de)
CA (1) CA2398950A1 (de)
DE (1) DE60124888T2 (de)
MY (1) MY119063A (de)
TW (1) TW509919B (de)
WO (1) WO2001073762A2 (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6773834B2 (en) * 1999-10-08 2004-08-10 Hitachi Global Storage Technologies Netherlands B.V. Laminated magnetic recording media with antiferromagnetically coupled layer as one of the individual magnetic layers in the laminate
JP3350512B2 (ja) * 2000-05-23 2002-11-25 株式会社日立製作所 垂直磁気記録媒体及び磁気記録再生装置
US6759149B1 (en) * 2000-07-25 2004-07-06 Seagate Technology Llc Laminated medium with antiferromagnetic stabilization layers
JP3848072B2 (ja) * 2000-09-29 2006-11-22 富士通株式会社 磁気記録媒体及びこれを用いた磁気記憶装置
JP3854579B2 (ja) * 2000-11-29 2006-12-06 富士通株式会社 磁気記録媒体及び磁気記憶装置
JP2002279618A (ja) * 2001-03-19 2002-09-27 Hitachi Ltd 磁気記録媒体
EP1406247B1 (de) * 2001-05-23 2009-03-25 Fujitsu Limited Magnetisches aufzeichnungsmedium des vertikalaufzeichnungstyps und magnetische speichereinrichtung mit dem medium
JP4072324B2 (ja) * 2001-06-26 2008-04-09 株式会社日立グローバルストレージテクノロジーズ 磁気記録媒体及びその製造方法
JP4746778B2 (ja) * 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 磁気記録媒体及びそれを用いた磁気記憶装置
SG108859A1 (en) * 2001-07-03 2005-02-28 Hoya Corp Magnetic recording medium
SG96659A1 (en) * 2001-11-08 2003-06-16 Inst Data Storage Laminated antiferromagnetically coupled media for data storage
JP2003162813A (ja) * 2001-11-28 2003-06-06 Hitachi Ltd 磁気記録媒体および磁気記憶装置
US6852426B1 (en) * 2001-12-20 2005-02-08 Seagate Technology Llc Hybrid anti-ferromagnetically coupled and laminated magnetic media
WO2003083840A1 (en) * 2002-03-29 2003-10-09 Fujitsu Limited Magnetic recording medium and magnetic storage apparatus
US6811890B1 (en) 2002-04-08 2004-11-02 Maxtor Corporation Intermediate layer for antiferromagnetically exchange coupled media
US6878460B1 (en) 2002-11-07 2005-04-12 Seagate Technology Llc Thin-film magnetic recording media with dual intermediate layer structure for increased coercivity
US20040166371A1 (en) * 2003-02-26 2004-08-26 Berger Andreas Klaus Dieter Magnetic recording media with write-assist layer
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
US6964819B1 (en) * 2003-05-06 2005-11-15 Seagate Technology Llc Anti-ferromagnetically coupled recording media with enhanced RKKY coupling
US7592079B1 (en) 2003-07-03 2009-09-22 Seagate Technology Llc Method to improve remanence-squareness-thickness-product and coercivity profiles in magnetic media
US7201977B2 (en) * 2004-03-23 2007-04-10 Seagate Technology Llc Anti-ferromagnetically coupled granular-continuous magnetic recording media
JP2006185489A (ja) * 2004-12-27 2006-07-13 Fujitsu Ltd 磁気記録媒体および磁気記憶装置
US7556870B2 (en) * 2005-08-15 2009-07-07 Hitachi Global Storage Technologies Netherlands B.V. Antiferromagnetically coupled media for magnetic recording with weak coupling layer
US9978413B2 (en) 2006-06-17 2018-05-22 Dieter Suess Multilayer exchange spring recording media
US8580580B2 (en) 2010-04-01 2013-11-12 Seagate Technology Llc Magnetic element with varying areal extents

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5815342A (en) * 1992-07-13 1998-09-29 Kabushiki Kaisha Toshiba Perpendicular magnetic recording/reproducing apparatus
JPH06103553A (ja) * 1992-09-18 1994-04-15 Fujitsu Ltd 垂直磁気記録媒体とその製造方法
US5569533A (en) * 1994-03-14 1996-10-29 Hmt Technology Corporation Thin-film medium with sublayer
US5583725A (en) * 1994-06-15 1996-12-10 International Business Machines Corporation Spin valve magnetoresistive sensor with self-pinned laminated layer and magnetic recording system using the sensor
US5843589A (en) * 1995-12-21 1998-12-01 Hitachi, Ltd. Magnetic layered material, and magnetic sensor and magnetic storage/read system based thereon
DE69928589T2 (de) * 1998-03-13 2006-06-22 Hoya Corp. Kristallisiertes Glas-Substrat, und Informationsaufzeichnungsmedium unter Verwendung des kristallisierten Glas-Substrats
JP4263802B2 (ja) * 1998-03-17 2009-05-13 株式会社東芝 磁心、磁気センサ、及び磁気記録ヘッド
US6307708B1 (en) * 1998-03-17 2001-10-23 Kabushiki Kaisha Toshiba Exchange coupling film having a plurality of local magnetic regions, magnetic sensor having the exchange coupling film, and magnetic head having the same
JPH11296832A (ja) * 1998-04-02 1999-10-29 Sony Corp 磁気記録媒体
EP1302932B1 (de) * 1999-06-08 2004-10-13 Fujitsu Limited Magnetisches Aufzeichnungsmittel
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
JP3836373B2 (ja) 2006-10-25
ATE347164T1 (de) 2006-12-15
CN100373458C (zh) 2008-03-05
KR20020084220A (ko) 2002-11-04
EP1275110B1 (de) 2006-11-29
AU2001240880A1 (en) 2001-10-08
DE60124888T2 (de) 2007-09-27
US6383668B1 (en) 2002-05-07
KR100469531B1 (ko) 2005-02-02
WO2001073762A2 (en) 2001-10-04
MY119063A (en) 2005-03-31
TW509919B (en) 2002-11-11
EP1275110A2 (de) 2003-01-15
WO2001073762A3 (en) 2002-04-04
CN1419688A (zh) 2003-05-21
CA2398950A1 (en) 2001-10-04
JP2003529174A (ja) 2003-09-30

Similar Documents

Publication Publication Date Title
ATE347164T1 (de) Magnetisches aufzeichnungsmedium
MY122799A (en) Laminated magnetic recording media with antiferromagnetically coupled layers as the individual magnetic layers in the laminate
MY126680A (en) Laminated magnetic recording media with antiferromagnetically coupled layer as one of the individual magnetic layers in the laminate
GB2396740A (en) Anti-ferromagnetically coupled perpendicular magnetic recording media
MY128786A (en) Soft magnetic film for perpendicular recording disk
MY126751A (en) Magnetic recording media with antiferromagnetically coupled ferromagnetic films as the recording layer
MY127245A (en) Antiferromagnetically coupled magnetic recording media with boron-free first ferromagnetic film as nucleation layer
MY127088A (en) Patterned magnetic recording media with discrete magnetic regions separated by regions of antiferromagnetically coupled films
KR940016001A (ko) 자기기록매체용 적층 폴리에스테르 필름
MY124179A (en) Magnetic tunnel junction device with improved fixed and free ferromagnetic layers
SG170815A1 (en) Perpendicular magnetic recording disk and method of manufacturing the same
WO2005082061A3 (en) Spin transfer magnetic element with free layers having high perpendicular anisotropy and in-plane equilibrium magnetization
KR960011854A (ko) 자기저항효과 박막 및 그 제조방법
DE69402995T2 (de) Biaxial orientierter Mehrschichtfilm aus Polyester und magnetischer Aufzeichnungsträger mit demselben Basisfilm
AU2003225795A1 (en) Synthetic-ferrimagnet sense-layer for high density mram applications
EP1346815A4 (de) Biaxial orientierte polyesterfolie und verfahren zu ihrer herstellung
EP1273438A4 (de) Biaxial orientierter, mehrlagiger polyesterfilm sowie magnetisches aufzeichnungsmedium
EP0965987A3 (de) Magnetooptisches Speichermedium
WO2009037910A1 (ja) 磁気ランダムアクセスメモリ、その書き込み方法、及び磁気抵抗効果素子
EP1060866A4 (de) Zweiaxial orientierte polyesterfolie und flexible platte
MY135243A (en) Magnetic recording medium exhibiting low noise and high coercive force
EP1193692A4 (de) Spinventil-magnetowiderstandseffektkopf, denselben enthaltenden zusammengesetzten magnetkopf und widerstandsaufgezeichneten mediumantrieb
EP0535240A4 (en) Biaxially oriented polyethylene 2,6-naphthalate film strip and magnetic tape using the same
EP1560203A4 (de) Vertikal-magnetaufzeichnungsmedium
MY133420A (en) Magnetic recording medium with controlled lattice spacing and method of forming thereof

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee