CN117594073A - 带有被配置为减少钛到磁记录层中的扩散的垫层的磁记录介质 - Google Patents

带有被配置为减少钛到磁记录层中的扩散的垫层的磁记录介质 Download PDF

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Publication number
CN117594073A
CN117594073A CN202310843224.8A CN202310843224A CN117594073A CN 117594073 A CN117594073 A CN 117594073A CN 202310843224 A CN202310843224 A CN 202310843224A CN 117594073 A CN117594073 A CN 117594073A
Authority
CN
China
Prior art keywords
layer
magnetic recording
underlayer
additive material
mto
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.)
Pending
Application number
CN202310843224.8A
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English (en)
Chinese (zh)
Inventor
H·C·何
H·原
关智孔
P·C·多尔西
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.)
Western Digital Technologies Inc
Original Assignee
Western Digital Technologies Inc
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 Western Digital Technologies Inc filed Critical Western Digital Technologies Inc
Publication of CN117594073A publication Critical patent/CN117594073A/zh
Pending legal-status Critical Current

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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
    • G11B5/62—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
    • 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
    • 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
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73911—Inorganic substrates
    • G11B5/73917—Metallic substrates, i.e. elemental metal or metal alloy substrates
    • 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
    • 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
    • G11B5/7375—Non-polymeric layer under the lowermost magnetic recording layer for heat-assisted or thermally-assisted magnetic recording [HAMR, TAMR]
    • 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
    • G11B2005/0005—Arrangements, methods or circuits
    • G11B2005/0021—Thermally assisted recording using an auxiliary energy source for heating the recording layer locally to assist the magnetization reversal

Landscapes

  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
CN202310843224.8A 2022-08-11 2023-07-11 带有被配置为减少钛到磁记录层中的扩散的垫层的磁记录介质 Pending CN117594073A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US17/886,244 2022-08-11
US17/886,244 US11900978B1 (en) 2022-08-11 2022-08-11 Magnetic recording medium with underlayer configured to reduce diffusion of titanium into a magnetic recording layer

Publications (1)

Publication Number Publication Date
CN117594073A true CN117594073A (zh) 2024-02-23

Family

ID=89846562

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310843224.8A Pending CN117594073A (zh) 2022-08-11 2023-07-11 带有被配置为减少钛到磁记录层中的扩散的垫层的磁记录介质

Country Status (3)

Country Link
US (1) US11900978B1 (https=)
JP (1) JP7514982B2 (https=)
CN (1) CN117594073A (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US12518786B1 (en) * 2024-10-22 2026-01-06 Seagate Technology Llc Ultrafast pulse assisted magnetic recording

Family Cites Families (34)

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US6579590B2 (en) 2001-11-16 2003-06-17 Hitachi Global Storage Technologies Netherlands B.V. Thermally-assisted magnetic recording disk with multilayered thermal barrier
JP4255826B2 (ja) 2003-12-26 2009-04-15 株式会社東芝 磁気記録媒体及び磁気記録媒体の製造方法並びに磁気記録再生装置
US7869162B2 (en) 2007-02-16 2011-01-11 Seagate Technology Llc Thin film structure with controlled lateral thermal spreading in the thin film
JP5561766B2 (ja) * 2010-02-04 2014-07-30 昭和電工株式会社 熱アシスト磁気記録媒体及び磁気記憶装置
US9076476B2 (en) 2011-09-23 2015-07-07 Carnegie Mellon University Thin film media structure for perpendicular magnetic recording and storage devices made therewith
JP2013149315A (ja) * 2012-01-19 2013-08-01 Showa Denko Kk 熱アシスト磁気記録媒体及び磁気記録再生装置
US8941950B2 (en) * 2012-05-23 2015-01-27 WD Media, LLC Underlayers for heat assisted magnetic recording (HAMR) media
US8993134B2 (en) 2012-06-29 2015-03-31 Western Digital Technologies, Inc. Electrically conductive underlayer to grow FePt granular media with (001) texture on glass substrates
JP6083163B2 (ja) 2012-09-11 2017-02-22 富士電機株式会社 垂直磁気記録媒体およびその製造方法
MY178275A (en) 2012-09-27 2020-10-07 Seagate Technology Llc Magnetic stack including tin-x intermediate layer
US9236078B2 (en) 2012-10-10 2016-01-12 Agency For Science Technology And Research Recording medium for heat-assisted-magnetic-recording (HAMR) and method for manufacturing the same
JP6145332B2 (ja) 2013-06-20 2017-06-07 昭和電工株式会社 磁気記録媒体、磁気記憶装置
US10276192B2 (en) 2013-07-11 2019-04-30 Western Digital Technologies, Inc. Perpendicular magnetic recording medium
US9672854B2 (en) * 2013-09-30 2017-06-06 Seagate Technology Llc Magnetic stack including MgO-Ti(ON) interlayer
US9177585B1 (en) 2013-10-23 2015-11-03 WD Media, LLC Magnetic media capable of improving magnetic properties and thermal management for heat-assisted magnetic recording
US9822441B2 (en) 2015-03-31 2017-11-21 WD Media, LLC Iridium underlayer for heat assisted magnetic recording media
US10347281B2 (en) * 2015-06-02 2019-07-09 Western Digital Technologies, Inc. Structures and methods for templated growth of high areal density heat assisted magnetic recording media
MY179440A (en) 2015-06-02 2020-11-06 Fuji Electric Co Ltd Method for producing magnetic recording medium
SG10201604026QA (en) 2015-07-16 2017-02-27 Agency Science Tech & Res Recording medium for heat assisted magnetic recording and method of forming the same
US10276201B1 (en) 2015-11-02 2019-04-30 WD Media, LLC Dual phase MgO-X seed layers for heat assisted magnetic recording media
US9530445B1 (en) 2016-01-21 2016-12-27 HGST Netherlands B.V. Perpendicular heat-assisted magnetic recording (HAMR) medium with a perovskite oxide intermediate layer
US9754618B1 (en) 2016-04-22 2017-09-05 WD Media, LLC Heat-assisted magnetic recording (HAMR) medium including a split heat-sink structure (SHSS)
US20180218752A1 (en) 2017-02-01 2018-08-02 Seagate Technology Llc Heat assisted recording media including mutli-layer granular heatsink
JP6832189B2 (ja) 2017-02-21 2021-02-24 昭和電工株式会社 磁気記録媒体及び磁気記録再生装置
US10439133B2 (en) 2017-03-13 2019-10-08 Samsung Electronics Co., Ltd. Method and system for providing a magnetic junction having a low damping hybrid free layer
US20180286441A1 (en) 2017-03-28 2018-10-04 Seagate Technology Llc Heat assisted magnetic recording (hamr) media with exchange tuning layer
US10650854B1 (en) * 2017-04-17 2020-05-12 Western Digital Technologies, Inc. Heat-assisted magnetic recording (HAMR) medium with improved corrosion resistance
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Also Published As

Publication number Publication date
US20240055019A1 (en) 2024-02-15
JP2024025674A (ja) 2024-02-26
US11900978B1 (en) 2024-02-13
JP7514982B2 (ja) 2024-07-11

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