SG164341A1 - Magnetic recording media with enhanced writability and thermal stability - Google Patents

Magnetic recording media with enhanced writability and thermal stability

Info

Publication number
SG164341A1
SG164341A1 SG201001013-0A SG2010010130A SG164341A1 SG 164341 A1 SG164341 A1 SG 164341A1 SG 2010010130 A SG2010010130 A SG 2010010130A SG 164341 A1 SG164341 A1 SG 164341A1
Authority
SG
Singapore
Prior art keywords
writability
soft
semi
hard layer
enhanced
Prior art date
Application number
SG201001013-0A
Other languages
English (en)
Inventor
Bo Bian
Shoutao Wang
Weilu Xu
Abebe Hailu
Miaogen Lu
Charles C Chen
Thomas Patrick Nolan
Alexander Yulievich Dobin
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 SG164341A1 publication Critical patent/SG164341A1/en

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
    • G11B5/672—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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • 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

  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Thin Magnetic Films (AREA)
  • Paints Or Removers (AREA)
SG201001013-0A 2009-02-19 2010-02-17 Magnetic recording media with enhanced writability and thermal stability SG164341A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12/389,039 US8685547B2 (en) 2009-02-19 2009-02-19 Magnetic recording media with enhanced writability and thermal stability

Publications (1)

Publication Number Publication Date
SG164341A1 true SG164341A1 (en) 2010-09-29

Family

ID=42560187

Family Applications (1)

Application Number Title Priority Date Filing Date
SG201001013-0A SG164341A1 (en) 2009-02-19 2010-02-17 Magnetic recording media with enhanced writability and thermal stability

Country Status (7)

Country Link
US (1) US8685547B2 (ja)
JP (1) JP5881275B2 (ja)
KR (1) KR101740708B1 (ja)
CN (1) CN101882445A (ja)
MY (1) MY152702A (ja)
SG (1) SG164341A1 (ja)
TW (1) TWI483246B (ja)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5245734B2 (ja) * 2008-11-07 2013-07-24 富士電機株式会社 磁気記録媒体およびその製造方法
US9401170B1 (en) * 2009-11-24 2016-07-26 WD Media, LLC Perpendicular magnetic recording medium with epitaxial exchange coupling layer
US8530065B1 (en) * 2010-08-10 2013-09-10 WD Media, LLC Composite magnetic recording medium
US8940418B1 (en) 2010-12-23 2015-01-27 WD Media, LLC Dynamic spring media with multiple exchange coupled hard-soft magnetic layers
JP5685983B2 (ja) * 2011-02-23 2015-03-18 富士電機株式会社 磁気記録媒体
JP2012195027A (ja) * 2011-03-15 2012-10-11 Toshiba Corp 磁気記録媒体、その製造方法、及び磁気記録再生装置
JP5775720B2 (ja) * 2011-03-30 2015-09-09 昭和電工株式会社 磁気記録媒体の製造方法及び磁気記録再生装置
US9028985B2 (en) * 2011-03-31 2015-05-12 WD Media, LLC Recording media with multiple exchange coupled magnetic layers
US8481181B2 (en) * 2011-03-31 2013-07-09 Seagate Technology Llc Exchange coupled magnetic elements
US8742518B2 (en) * 2011-03-31 2014-06-03 Seagate Technology Llc Magnetic tunnel junction with free layer having exchange coupled magnetic elements
US8320232B1 (en) * 2011-07-21 2012-11-27 Hitachi Global Storage Technologies Netherlands B.V. Patterned perpendicular magnetic recording medium with multiple magnetic layers and interlayers
US8837085B2 (en) * 2012-04-02 2014-09-16 Seagate Technology Llc Write yoke with stabilizing layer
JP5964121B2 (ja) * 2012-04-18 2016-08-03 山陽特殊製鋼株式会社 磁気記録媒体に用いる密着膜層用ＣｒＴｉ系合金およびスパッタリング用ターゲット材並びにそれを使用した垂直磁気記録媒体
JP6185591B2 (ja) * 2012-09-27 2017-08-23 シーゲイト テクノロジー エルエルシーＳｅａｇａｔｅ Ｔｅｃｈｎｏｌｏｇｙ ＬＬＣ ＴｉＮ−Ｘ中間層を含む磁気スタック
US9047906B2 (en) * 2012-09-28 2015-06-02 Seagate Technology, Llc Dual-layer magnetic recording structure
US9318140B2 (en) 2012-12-19 2016-04-19 HGST Netherlands B.V. Exchange enhanced cap manufactured with argon and oxygen implantation
US8614862B1 (en) 2012-12-21 2013-12-24 HGST Netherlands B.V. Perpendicular magnetic recording media having a cap layer above a granular layer
US8947987B1 (en) 2013-05-03 2015-02-03 WD Media, LLC Systems and methods for providing capping layers for heat assisted magnetic recording media
US9824711B1 (en) 2014-02-14 2017-11-21 WD Media, LLC Soft underlayer for heat assisted magnetic recording media
US9159350B1 (en) 2014-07-02 2015-10-13 WD Media, LLC High damping cap layer for magnetic recording media
US9685184B1 (en) 2014-09-25 2017-06-20 WD Media, LLC NiFeX-based seed layer for magnetic recording media
US9558777B2 (en) 2014-11-26 2017-01-31 HGST Netherlands B.V. Heat assisted magnetic recording (HAMR) media having a highly ordered crystalline structure
US9818442B2 (en) 2014-12-01 2017-11-14 WD Media, LLC Magnetic media having improved magnetic grain size distribution and intergranular segregation
US9934808B2 (en) 2015-03-11 2018-04-03 Western Digital Technologies, Inc. Magnetic recording medium with multiple exchange coupling layers and small grain magnetic layers
US10438614B1 (en) * 2016-04-11 2019-10-08 Seagate Technology Llc Method and apparatus for degaussing heat-assisted magnetic recording media
US9984709B1 (en) 2017-03-22 2018-05-29 Seagate Technology Llc Heat assisted magnetic recording (HAMR) media with thermal exchange control layer of lower curie temperature
US9984713B1 (en) 2017-06-06 2018-05-29 Seagate Technology Llc Heat assisted magnetic recording media with enhanced tuning exchange coupling
US10833249B2 (en) * 2017-09-18 2020-11-10 Centre National De La Recherche Scientifique Magnetic memory cell of current programming type
US10269381B1 (en) 2017-10-25 2019-04-23 Seagate Technology Llc Heat assisted magnetic recording with exchange coupling control layer
US11264559B2 (en) 2019-01-30 2022-03-01 International Business Machines Corporation Multilayered magnetic free layer structure for spin-transfer torque (STT) MRAM

Family Cites Families (78)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3337075A (en) 1967-08-22 Storage media
JPS58141433A (ja) 1982-02-16 1983-08-22 Teijin Ltd 磁気記録媒体とその製造方法
JPH07101495B2 (ja) 1985-07-03 1995-11-01 株式会社日立製作所 磁気記録媒体
JPS62183023A (ja) 1986-02-05 1987-08-11 Tdk Corp 磁気記録媒体
US5227212A (en) 1989-03-16 1993-07-13 International Business Machines Corporation Magnetic recording disk, magnetoresistive read head, inductive write head combination
KR100210579B1 (ko) 1990-01-08 1999-07-15 가나이 쓰도무 강자성막 및 그 제조방법과 이것을 사용한 자기헤드
US4992338A (en) 1990-03-05 1991-02-12 Eastman Kodak Company Multilayer magnetooptic recording medium with a polarizable palladium intermediate layer
JPH04102223A (ja) 1990-08-20 1992-04-03 Hitachi Ltd 磁気記録媒体及びその製造方法並びに磁気記録装置
JP2833190B2 (ja) 1990-10-15 1998-12-09 日本板硝子株式会社 磁気記録媒体
JP3022023B2 (ja) 1992-04-13 2000-03-15 株式会社日立製作所 磁気記録再生装置
GB9216074D0 (en) 1992-07-28 1992-09-09 Johnson Matthey Plc Magneto-optical recording materials system
US5549978A (en) 1992-10-30 1996-08-27 Kabushiki Kaisha Toshiba Magnetoresistance effect element
US5408377A (en) 1993-10-15 1995-04-18 International Business Machines Corporation Magnetoresistive sensor with improved ferromagnetic sensing layer and magnetic recording system using the sensor
US5660930A (en) 1994-04-04 1997-08-26 The Board Of Trustees Of The Leland Stanford Junior University Multilayered thin films for perpendicular magnetic recording
US5736013A (en) 1994-04-06 1998-04-07 Komag, Inc. Method for forming an improved magnetic media including sputtering of selected oxides or nitrides in the magnetic layer, and apparatus for same
US5834111A (en) 1994-05-31 1998-11-10 Hmt Technology Corporation Multilayered magnetic recording medium with coercivity gradient
US5991125A (en) 1994-09-16 1999-11-23 Kabushiki Kaisha Toshiba Magnetic head
US5680283A (en) 1994-09-30 1997-10-21 Kabushiki Kaisha Toshiba Magnetic head and magnetic disk drive
JP3276264B2 (ja) 1995-05-26 2002-04-22 アルプス電気株式会社 磁気抵抗効果多層膜およびその製造方法
JP3448698B2 (ja) 1995-06-27 2003-09-22 株式会社日立製作所 磁気記憶装置及び磁気記録媒体
JP3990751B2 (ja) 1995-07-25 2007-10-17 株式会社日立グローバルストレージテクノロジーズ 磁気抵抗効果型磁気ヘッド及び磁気記録再生装置
US5830569A (en) 1995-09-12 1998-11-03 Kabushiki Kaisha Toshiba Magnetic recording medium containing CoPtO-based alloy magnetic film
US5909345A (en) 1996-02-22 1999-06-01 Matsushita Electric Industrial Co., Ltd. Magnetoresistive device and magnetoresistive head
US5834085A (en) 1996-02-26 1998-11-10 Densitek Corporation Grain isolated multilayer perpendicular recording medium
US5922442A (en) 1996-04-26 1999-07-13 Hmt Technology Corporation Magnetic recording medium having a CoCr alloy interlayer of a low saturation magnetization
US6174597B1 (en) 1996-07-26 2001-01-16 Kabushiki Kaisha Toshiba Magnetic recording apparatus
KR19980042427A (ko) 1996-11-18 1998-08-17 다까노야스아끼 자기 저항 효과막
US6077586A (en) 1997-07-15 2000-06-20 International Business Machines Corporation Laminated thin film disk for longitudinal recording
US6242085B1 (en) 1997-09-17 2001-06-05 Matsushita Electric Industrial Co., Ltd. Magnetic recording medium and method for producing the same
US6221508B1 (en) 1997-12-09 2001-04-24 Hitachi, Ltd. Magnetic recording media
JP3919047B2 (ja) 1998-09-30 2007-05-23 日本ビクター株式会社 垂直磁気記録媒体
US6420058B1 (en) 1999-02-19 2002-07-16 Tdk Corporation Magnetic recording medium
JP3220116B2 (ja) 1999-07-06 2001-10-22 株式会社日立製作所 垂直磁気記録媒体および磁気記憶装置
US6280813B1 (en) 1999-10-08 2001-08-28 International Business Machines Corporation Magnetic recording media with antiferromagnetically coupled ferromagnetic films as the recording layer
JP3731640B2 (ja) 1999-11-26 2006-01-05 株式会社日立グローバルストレージテクノロジーズ 垂直磁気記録媒体及び磁気記憶装置
US6531202B1 (en) 1999-11-29 2003-03-11 Seagate Technology Llc Perpendicular magnetic recording media with reduced-noise soft magnetic underlayer
JP2001266328A (ja) 2000-01-13 2001-09-28 Fuji Electric Co Ltd 磁気記録媒体、およびその保護膜の濡れ性を改良する方法
US6468670B1 (en) 2000-01-19 2002-10-22 International Business Machines Corporation Magnetic recording disk with composite perpendicular recording layer
JP4207140B2 (ja) 2000-04-06 2009-01-14 富士電機デバイステクノロジー株式会社 垂直磁気記録媒体およびその製造方法
US6914749B2 (en) 2000-07-25 2005-07-05 Seagate Technology Llc Magnetic anisotropy of soft-underlayer induced by magnetron field
JP3665261B2 (ja) 2000-09-01 2005-06-29 株式会社日立製作所 垂直磁気記録媒体および磁気記憶装置
US20020034666A1 (en) 2000-09-07 2002-03-21 Kiely James Dillon Magnetic recording medium utilizing patterned nanoparticle arrays
US6777112B1 (en) 2000-10-10 2004-08-17 Seagate Technology Llc Stabilized recording media including coupled discontinuous and continuous magnetic layers
US20020071208A1 (en) 2000-12-08 2002-06-13 Sharat Batra Perpendicular magnetic recording head to reduce side writing
US6699600B2 (en) 2001-02-28 2004-03-02 Showa Denko K.K. Magnetic recording medium, method of manufacture therefor, and apparatus for magnetic recording and reproducing recordings
JP2002342908A (ja) 2001-05-14 2002-11-29 Sony Corp 磁気記録媒体とその製造方法
US6677061B2 (en) 2001-05-23 2004-01-13 Showa Denko Kabushiki Kaisha Magnetic recording medium, production process thereof, and magnetic recording and reproducing apparatus
JP3884932B2 (ja) 2001-09-07 2007-02-21 株式会社日立グローバルストレージテクノロジーズ 磁気記録媒体及び磁気記憶装置
WO2003049086A1 (en) 2001-11-30 2003-06-12 Seagate Technology Llc Anti-ferromagnetically coupled perpendicular magnetic recording media
US7060376B1 (en) 2001-12-06 2006-06-13 Seagate Technology Llc Amorphous soft underlayers for perpendicular recording media
US20030108776A1 (en) 2001-12-06 2003-06-12 Seagate Technology Llc Pseudo-laminated soft underlayers for perpendicular magnetic recording media
US7192664B1 (en) 2003-06-24 2007-03-20 Seagate Technology Llc Magnetic alloy containing TiO2 for perpendicular magnetic recording application
US7201977B2 (en) 2004-03-23 2007-04-10 Seagate Technology Llc Anti-ferromagnetically coupled granular-continuous magnetic recording media
JP4540557B2 (ja) * 2004-07-05 2010-09-08 富士電機デバイステクノロジー株式会社 垂直磁気記録媒体
US20060024530A1 (en) 2004-08-02 2006-02-02 Seagate Technology Llc Magnetic alloy materials with HCP stabilized microstructure, magnetic recording media comprising same, and fabrication method therefor
JP4153910B2 (ja) 2004-12-17 2008-09-24 アイシン精機株式会社 燃料電池システム
US7687157B2 (en) * 2005-02-04 2010-03-30 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular recording media having an exchange-spring structure
US20060269797A1 (en) 2005-05-26 2006-11-30 Seagate Technology Llc Perpendicular magnetic recording media including a uniform exchange enhancement layer
US8119263B2 (en) 2005-09-22 2012-02-21 Seagate Technology Llc Tuning exchange coupling in magnetic recording media
US7846564B2 (en) * 2005-09-27 2010-12-07 Seagate Technology Llc Perpendicular magnetic recording media with magnetic anisotropy/coercivity gradient and local exchange coupling
JP2007220177A (ja) * 2006-02-15 2007-08-30 Fujitsu Ltd 垂直磁気記録媒体
US7550210B2 (en) * 2006-03-09 2009-06-23 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular magnetic recording medium with multiple exchange-coupled magnetic layers having substantially similar anisotropy fields
US20070287031A1 (en) 2006-06-08 2007-12-13 Seagate Technology Llc Thin sul perpendicular magnetic recording media and recording systems comprising same
US7582368B2 (en) * 2006-09-14 2009-09-01 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular magnetic recording medium with an exchange-spring recording structure and a lateral coupling layer for increasing intergranular exchange coupling
JP2008176858A (ja) * 2007-01-18 2008-07-31 Hitachi Global Storage Technologies Netherlands Bv 垂直磁気記録媒体、及びそれを用いたハードディスクドライブ
JP2008192249A (ja) * 2007-02-06 2008-08-21 Showa Denko Kk 垂直磁気記録媒体、その製造方法および磁気記録再生装置
JP2008198316A (ja) * 2007-02-15 2008-08-28 Fujitsu Ltd 垂直磁気記録媒体、その製造方法及び磁気記録装置
US7572526B2 (en) * 2007-02-18 2009-08-11 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular magnetic recording medium with exchange-spring structure having multiple exchange-spring layers and recording system for the medium
US7638210B2 (en) * 2007-04-16 2009-12-29 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular magnetic recording medium with exchange-coupled magnetic layers and improved coupling layer
US8021769B2 (en) * 2007-05-22 2011-09-20 Hitachi Global Storage Technologies Netherlands B.V. Patterned perpendicular magnetic recording medium with exchange coupled recording layer structure and magnetic recording system using the medium
JP4742073B2 (ja) * 2007-06-20 2011-08-10 富士フイルム株式会社 磁気記録媒体の製造方法
JP4742074B2 (ja) * 2007-06-29 2011-08-10 富士フイルム株式会社 磁気記録媒体の製造方法
JP2009015959A (ja) * 2007-07-04 2009-01-22 Toshiba Corp 垂直磁気記録媒体および磁気記録再生装置
JP5184843B2 (ja) * 2007-08-21 2013-04-17 エイチジーエスティーネザーランドビーブイ 垂直磁気記録媒体及び磁気記憶装置
JP5103097B2 (ja) * 2007-08-30 2012-12-19 エイチジーエスティーネザーランドビーブイ 垂直磁気記録媒体及びそれを用いた磁気記録再生装置
KR101344407B1 (ko) * 2007-09-21 2013-12-26 후지 덴키 가부시키가이샤 자기기록매체
JP4922976B2 (ja) * 2008-03-26 2012-04-25 昭和電工株式会社 磁気記録媒体の製造方法
US8507114B2 (en) * 2011-06-30 2013-08-13 Seagate Technology Llc Recording layer for heat assisted magnetic recording

Also Published As

Publication number Publication date
KR101740708B1 (ko) 2017-05-26
US8685547B2 (en) 2014-04-01
US20100209737A1 (en) 2010-08-19
TW201106347A (en) 2011-02-16
CN101882445A (zh) 2010-11-10
JP2010192099A (ja) 2010-09-02
TWI483246B (zh) 2015-05-01
JP5881275B2 (ja) 2016-03-09
MY152702A (en) 2014-11-28
KR20100094960A (ko) 2010-08-27

Similar Documents

Publication Publication Date Title
SG164341A1 (en) Magnetic recording media with enhanced writability and thermal stability
MY155369A (en) Perpendicular magnetic recording medium
MY163734A (en) Apparatus including a perpendicular magnetic recording layer having a convex magnetic anisotropy profile
EP2445224A4 (en) INFORMATION RECORDING MEDIUM FOR PLAYING 3D VIDEOS AND PLAYING DEVICE THEREFOR
JP2010192099A5 (ja)
WO2010054120A3 (en) Methods, systems and apparatuses for use in updating a portable storage medium
TW200744719A (en) Sound processing apparatus, method for processing sound, and information recording medium
MX2012001371A (es) Metodos y sistemas para asociar y proporcionar contenido de medios de diferentes tipos que comparten atributos.
EP2256788A4 (en) UV NANO-PRINTING LITHOGRAPHY METHOD, RESIN FOAM MOLD AND METHOD FOR PRODUCING THE SAME, MAGNETIC MEDIUM AND METHOD FOR PRODUCING THE SAME, AND MAGNETIC RECORDING / READING APPARATUS
EP2733935A4 (en) PRODUCTION DEVICE, DISTRIBUTION SERVER, PRODUCTION METHOD, PLAYING DEVICE, PLAYING METHOD, PLAYING SYSTEM, PRODUCTION PROGRAM, PLAY PROGRAM, RECORDING MEDIUM AND DATA STRUCTURE
TWI367480B (en) Method of producing magnetic recording medium, and magnetic recording and reading device
SG139608A1 (en) Perpendicular magnetic recording medium and magnetic storage apparatus
MY161372A (en) Information encoding method, information decoding method, recording/reproducing apparatus, and information storage medium
SG148110A1 (en) Magnetic recording medium and magnetic storage apparatus
MY171751A (en) Perpendicular magnetic recording medium
EP2405432A4 (en) INFORMATION RECORDING MEDIUM, SERVER EQUIPMENT USING THE SAME, AND METHOD FOR MANAGING THE USE OF THE INFORMATION RECORDING MEDIUM
MY159891A (en) Method for making data storage media
EP2743917A4 (en) INFORMATION SYSTEM, INFORMATION REPRODUCTION DEVICE, INFORMATION GENERATION METHOD, AND RECORDING MEDIUM
GB2477696A (en) Low coupling oxide media (LCOM)
EP2436007A4 (en) INFORMATION STORAGE MEDIUM, AND RECORDING / REPRODUCING METHOD AND APPARATUS
JP2012509547A5 (ja) 磁気記録媒体および記憶層を有する装置
TW200735061A (en) Heat assisted recording medium and method for fabricating the same
SG10201404984QA (en) Magnetic recording media with reliable writability and erasure
SG10201402679TA (en) Perpendicular magnetic recording media having novel magnetic under-layer structure
EP2494551A4 (en) INFORMATION STORAGE MEDIUM, RECORDING AND PLAYING DEVICE, AND RECORDING AND REPLAYING METHOD