CN102498516B - 具有可靠的可写性和擦除的磁记录介质 - Google Patents

具有可靠的可写性和擦除的磁记录介质 Download PDF

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Publication number
CN102498516B
CN102498516B CN201080037287.5A CN201080037287A CN102498516B CN 102498516 B CN102498516 B CN 102498516B CN 201080037287 A CN201080037287 A CN 201080037287A CN 102498516 B CN102498516 B CN 102498516B
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CN
China
Prior art keywords
layer
soft magnetosphere
magnetic
permeability region
pcrmeability
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
CN201080037287.5A
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English (en)
Chinese (zh)
Other versions
CN102498516A (zh
Inventor
T·P·诺兰
B·F·法尔库
L·唐
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.)
Seagate Technology LLC
Original Assignee
Seagate Technology LLC
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 Seagate Technology LLC filed Critical Seagate Technology LLC
Publication of CN102498516A publication Critical patent/CN102498516A/zh
Application granted granted Critical
Publication of CN102498516B publication Critical patent/CN102498516B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers
    • 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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
    • 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
    • G11B2005/0002—Special dispositions or recording techniques
    • G11B2005/0026—Pulse recording
    • G11B2005/0029—Pulse recording using magnetisation components of the recording layer disposed mainly perpendicularly to the record carrier surface
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Record Carriers (AREA)
  • Thin Magnetic Films (AREA)
CN201080037287.5A 2009-08-19 2010-08-19 具有可靠的可写性和擦除的磁记录介质 Expired - Fee Related CN102498516B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12/544,091 2009-08-19
US12/544,091 US9972352B2 (en) 2009-08-19 2009-08-19 Antiferromagnetic coupling layers
PCT/US2010/046010 WO2011066007A1 (en) 2009-08-19 2010-08-19 Magnetic recording media with reliable writability and erasure

Publications (2)

Publication Number Publication Date
CN102498516A CN102498516A (zh) 2012-06-13
CN102498516B true CN102498516B (zh) 2016-08-17

Family

ID=43605193

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201080037287.5A Expired - Fee Related CN102498516B (zh) 2009-08-19 2010-08-19 具有可靠的可写性和擦除的磁记录介质

Country Status (6)

Country Link
US (1) US9972352B2 (enExample)
JP (2) JP5795763B2 (enExample)
KR (1) KR101797605B1 (enExample)
CN (1) CN102498516B (enExample)
SG (2) SG178370A1 (enExample)
WO (1) WO2011066007A1 (enExample)

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* Cited by examiner, † Cited by third party
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US7901802B2 (en) * 2006-03-15 2011-03-08 Seagate Technology Llc Magnetic recording medium for perpendicular magnetic recording
US9165625B2 (en) * 2008-10-30 2015-10-20 Seagate Technology Llc ST-RAM cells with perpendicular anisotropy
US20130241542A1 (en) * 2012-03-14 2013-09-19 Wolfgang Raberg Xmr monocell sensors, systems and methods
US9431045B1 (en) 2014-04-25 2016-08-30 WD Media, LLC Magnetic seed layer used with an unbalanced soft underlayer
US9245564B2 (en) * 2014-04-29 2016-01-26 HGST Netherlands B.V. Soft underlayer having a multilayer structure for high areal density perpendicular recording media

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CN1767008A (zh) * 2004-10-28 2006-05-03 三星电子株式会社 具有叠层软磁衬层的垂直磁记录介质
CN1979644A (zh) * 2005-09-22 2007-06-13 希捷科技有限公司 反铁磁耦合的软底层
CN101046982A (zh) * 2006-03-28 2007-10-03 三星电子株式会社 磁记录介质

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US5180609A (en) 1988-03-09 1993-01-19 Kabushiki Kaisha Toshiba Method of forming modified portion and magnetic recording member using this method
US5580667A (en) 1992-06-30 1996-12-03 Hmt Technology Corporation Multilayered medium with gradient isolation layer
US5792564A (en) 1993-03-10 1998-08-11 Kabushiki Kaisha Toshiba Perpendicular recording medium and magnetic recording apparatus
DE19982238T1 (de) 1998-10-12 2001-02-15 Fujitsu Ltd Magnetsensor, Magnetkopf, Magnetcodierer und Festplattenvorrichtung
KR100679094B1 (ko) 1999-10-08 2007-02-05 엘지.필립스 엘시디 주식회사 백라이트 유닛
JP2001250223A (ja) * 1999-12-28 2001-09-14 Mitsubishi Chemicals Corp 磁気記録媒体及び磁気記録装置
JP2001291210A (ja) 2000-04-03 2001-10-19 Alps Electric Co Ltd 薄膜磁気ヘッド
US6818330B2 (en) 2000-08-25 2004-11-16 Seagate Technology Llc Perpendicular recording medium with antiferromagnetic exchange coupling in soft magnetic underlayers
JP2002100030A (ja) 2000-09-21 2002-04-05 Toshiba Corp 垂直磁気記録媒体
US6641935B1 (en) 2000-11-20 2003-11-04 Seagate Technology Llc Perpendicular recording media with soft magnetic superlattice underlayer
US7166375B2 (en) * 2000-12-28 2007-01-23 Showa Denko K.K. Magnetic recording medium utilizing a multi-layered soft magnetic underlayer, method of producing the same and magnetic recording and reproducing device
JP3849460B2 (ja) 2001-05-29 2006-11-22 ソニー株式会社 磁気抵抗効果素子、磁気抵抗効果型磁気センサ、および磁気抵抗効果型磁気ヘッド
US6835475B2 (en) 2001-07-26 2004-12-28 Hitachi Global Storage Technologies Netherlands B.V. Dual-layer perpendicular magnetic recording media with laminated underlayer formed with antiferromagnetically coupled films
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
US6890667B1 (en) 2001-11-09 2005-05-10 Maxtor Corporation Soft underlayer structure for magnetic recording
JP3971697B2 (ja) 2002-01-16 2007-09-05 Ｔｄｋ株式会社 高周波用磁性薄膜及び磁気素子
WO2003083840A1 (en) 2002-03-29 2003-10-09 Fujitsu Limited Magnetic recording medium and magnetic storage apparatus
US6778358B1 (en) 2002-05-01 2004-08-17 Western Digital (Fremont), Inc. Magnetically soft, high saturation magnetization laminates of iron-cobalt-nitrogen and iron-nickel
JP2004118894A (ja) * 2002-09-24 2004-04-15 Victor Co Of Japan Ltd ディスク状磁気記録媒体
JP2004207651A (ja) 2002-12-26 2004-07-22 Tdk Corp 高周波用磁性薄膜、複合磁性薄膜およびそれを用いた磁気素子
JP3730627B2 (ja) 2003-02-28 2006-01-05 株式会社東芝 磁気記録媒体及び磁気記録再生装置
US7241516B1 (en) 2003-03-03 2007-07-10 Maxtor Corporation Soft magnetic underlayer with exchange coupling induced anisotropy for perpendicular magnetic recording media
US6893748B2 (en) 2003-05-20 2005-05-17 Komag, Inc. Soft magnetic film for perpendicular recording disk
KR100532486B1 (ko) 2003-12-24 2005-12-02 삼성전자주식회사 하드디스크 드라이브의 기록 전류 제어 방법
JP2006018876A (ja) * 2004-06-30 2006-01-19 Toshiba Corp 垂直磁気記録装置
WO2006053314A2 (en) * 2004-11-09 2006-05-18 Fultec Semiconductor, Inc. Apparatus and method for high-voltage transient blocking using low-voltage elements
US20060147758A1 (en) 2005-01-06 2006-07-06 Hong-Sik Jung Perpendicular magnetic recording medium with magnetically resetable single domain soft magnetic underlayer
US7901802B2 (en) * 2006-03-15 2011-03-08 Seagate Technology Llc Magnetic recording medium for perpendicular magnetic recording
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JP4923896B2 (ja) 2006-09-15 2012-04-25 富士通株式会社 交換結合膜及び磁気デバイス
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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1767008A (zh) * 2004-10-28 2006-05-03 三星电子株式会社 具有叠层软磁衬层的垂直磁记录介质
CN1979644A (zh) * 2005-09-22 2007-06-13 希捷科技有限公司 反铁磁耦合的软底层
CN101046982A (zh) * 2006-03-28 2007-10-03 三星电子株式会社 磁记录介质

Also Published As

Publication number Publication date
SG178370A1 (en) 2012-04-27
JP6055523B2 (ja) 2016-12-27
US9972352B2 (en) 2018-05-15
JP5795763B2 (ja) 2015-10-14
SG10201404984QA (en) 2014-10-30
KR20120062801A (ko) 2012-06-14
WO2011066007A1 (en) 2011-06-03
JP2013502669A (ja) 2013-01-24
US20110043939A1 (en) 2011-02-24
CN102498516A (zh) 2012-06-13
KR101797605B1 (ko) 2017-11-15
JP2015228275A (ja) 2015-12-17

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