JP2009015959A - 垂直磁気記録媒体および磁気記録再生装置 - Google Patents

垂直磁気記録媒体および磁気記録再生装置 Download PDF

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Publication number
JP2009015959A
JP2009015959A JP2007176438A JP2007176438A JP2009015959A JP 2009015959 A JP2009015959 A JP 2009015959A JP 2007176438 A JP2007176438 A JP 2007176438A JP 2007176438 A JP2007176438 A JP 2007176438A JP 2009015959 A JP2009015959 A JP 2009015959A
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JP
Japan
Prior art keywords
magnetic
layer
magnetic recording
recording medium
magnetic 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.)
Pending
Application number
JP2007176438A
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English (en)
Japanese (ja)
Other versions
JP2009015959A5 (https=
Inventor
Soichi Oikawa
壮一 及川
Tomoyuki Maeda
知幸 前田
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.)
Toshiba Corp
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP2007176438A priority Critical patent/JP2009015959A/ja
Priority to US12/166,592 priority patent/US7901801B2/en
Priority to CNA2008101319803A priority patent/CN101339775A/zh
Publication of JP2009015959A publication Critical patent/JP2009015959A/ja
Publication of JP2009015959A5 publication Critical patent/JP2009015959A5/ja
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
    • 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
    • G11B5/62—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
    • G11B5/73—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
    • G11B5/7379—Seed layer, e.g. at least one non-magnetic layer is specifically adapted as a seed or seeding layer
    • 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
    • Y10T428/11—Magnetic recording head
    • Y10T428/115—Magnetic layer composition

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  • Magnetic Record Carriers (AREA)
JP2007176438A 2007-07-04 2007-07-04 垂直磁気記録媒体および磁気記録再生装置 Pending JP2009015959A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2007176438A JP2009015959A (ja) 2007-07-04 2007-07-04 垂直磁気記録媒体および磁気記録再生装置
US12/166,592 US7901801B2 (en) 2007-07-04 2008-07-02 Perpendicular magnetic recording medium and magnetic recording apparatus
CNA2008101319803A CN101339775A (zh) 2007-07-04 2008-07-04 垂直磁记录介质以及磁记录装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007176438A JP2009015959A (ja) 2007-07-04 2007-07-04 垂直磁気記録媒体および磁気記録再生装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2011177522A Division JP2011227992A (ja) 2011-08-15 2011-08-15 垂直磁気記録媒体および磁気記録再生装置

Publications (2)

Publication Number Publication Date
JP2009015959A true JP2009015959A (ja) 2009-01-22
JP2009015959A5 JP2009015959A5 (https=) 2010-03-25

Family

ID=40213821

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007176438A Pending JP2009015959A (ja) 2007-07-04 2007-07-04 垂直磁気記録媒体および磁気記録再生装置

Country Status (3)

Country Link
US (1) US7901801B2 (https=)
JP (1) JP2009015959A (https=)
CN (1) CN101339775A (https=)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100103312A (ko) * 2009-03-13 2010-09-27 삼성전자주식회사 수직자기기록매체
JP2014075162A (ja) * 2012-10-03 2014-04-24 Showa Denko Kk 磁気記録媒体及び磁気記録再生装置
JP2014235771A (ja) * 2013-06-05 2014-12-15 ソニー株式会社 磁気記録媒体
JP2015503817A (ja) * 2011-12-22 2015-02-02 シーゲイト テクノロジー エルエルシー 高い磁気飽和および異方性磁界特性を有する薄い安定化層を備えた記録媒体

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009187608A (ja) * 2008-02-05 2009-08-20 Toshiba Corp 垂直磁気記録パターンド媒体および磁気記録再生装置
JP5126674B2 (ja) * 2008-06-10 2013-01-23 富士電機株式会社 垂直磁気記録媒体
JP5153575B2 (ja) * 2008-10-31 2013-02-27 株式会社日立製作所 熱アシスト磁気記録媒体及び磁気記録装置
US8685547B2 (en) * 2009-02-19 2014-04-01 Seagate Technology Llc Magnetic recording media with enhanced writability and thermal stability
JP5448750B2 (ja) * 2009-11-26 2014-03-19 エイチジーエスティーネザーランドビーブイ 磁気記録媒体
US8404368B2 (en) * 2010-07-30 2013-03-26 Seagate Technology Llc Multi-layer stack adjacent to granular layer
US8530065B1 (en) * 2010-08-10 2013-09-10 WD Media, LLC Composite magnetic recording medium
US8993133B1 (en) * 2010-12-23 2015-03-31 WD Media, LLC Intermediate layer for perpendicular magnetic recording medium with high permeability grain boundaries
US20130052485A1 (en) * 2011-08-25 2013-02-28 Seagate Technology Llc Recording stack with a dual continuous layer
US9058831B2 (en) 2011-12-14 2015-06-16 HGST Netherlands B.V. Perpendicular magnetic recording medium with grain boundary controlling layers
US10026432B1 (en) 2012-11-20 2018-07-17 Seagate Technology Llc Interlayer structure for heat assisted magnetic recording
US8947987B1 (en) 2013-05-03 2015-02-03 WD Media, LLC Systems and methods for providing capping layers for heat assisted magnetic recording media
CN110111820B (zh) * 2019-04-02 2021-07-23 惠科股份有限公司 磁盘盘片及其制作方法以及磁性记忆体存储器件
JP7319505B2 (ja) * 2019-09-06 2023-08-02 株式会社東芝 磁気ヘッド及び磁気記録装置
US11380358B2 (en) * 2020-06-25 2022-07-05 Western Digital Technologies, Inc. Magnetic recording media design with reduced lattice mismatch between adjacent intermediate layers
US12183377B2 (en) * 2023-05-30 2024-12-31 Western Digital Technologies, Inc. Magnetic recording media with dead magnetic layer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10334440A (ja) * 1997-06-03 1998-12-18 Hitachi Ltd 磁気記録媒体及び磁気記録再生装置
JP2006048900A (ja) * 2004-07-05 2006-02-16 Fuji Electric Device Technology Co Ltd 垂直磁気記録媒体
JP2008243316A (ja) * 2007-03-28 2008-10-09 Fujitsu Ltd 磁気記録媒体及び磁気記録装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2798745B2 (ja) 1989-11-20 1998-09-17 日本放送協会 垂直磁気記録二層媒体の製造方法
US6627301B2 (en) * 2000-03-28 2003-09-30 Showa Denko Kabushiki Kaisha Magnetic recording medium
JP2003162807A (ja) * 2001-11-27 2003-06-06 Toshiba Corp 垂直磁気記録媒体及びこれを用いた磁気記録再生装置
JP3988117B2 (ja) 2001-11-29 2007-10-10 富士電機デバイステクノロジー株式会社 垂直磁気記録媒体及び垂直磁気記録媒体の製造方法
US6899959B2 (en) * 2002-02-12 2005-05-31 Komag, Inc. Magnetic media with improved exchange coupling
JP2006155861A (ja) 2004-10-29 2006-06-15 Showa Denko Kk 垂直磁気記録媒体及びその製造方法並びに磁気記録再生装置
US20060222900A1 (en) * 2005-03-31 2006-10-05 Fujitsu Limited Magnetic recording medium and magnetic recording device
JP2006309922A (ja) * 2005-03-31 2006-11-09 Fujitsu Ltd 磁気記録媒体及び磁気記録装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10334440A (ja) * 1997-06-03 1998-12-18 Hitachi Ltd 磁気記録媒体及び磁気記録再生装置
JP2006048900A (ja) * 2004-07-05 2006-02-16 Fuji Electric Device Technology Co Ltd 垂直磁気記録媒体
JP2008243316A (ja) * 2007-03-28 2008-10-09 Fujitsu Ltd 磁気記録媒体及び磁気記録装置

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100103312A (ko) * 2009-03-13 2010-09-27 삼성전자주식회사 수직자기기록매체
KR101683135B1 (ko) * 2009-03-13 2016-12-06 시게이트 테크놀로지 엘엘씨 수직자기기록매체
US10026429B2 (en) 2009-03-13 2018-07-17 Seagate Technology Llc Perpendicular magnetic recording medium
JP2015503817A (ja) * 2011-12-22 2015-02-02 シーゲイト テクノロジー エルエルシー 高い磁気飽和および異方性磁界特性を有する薄い安定化層を備えた記録媒体
US10002632B2 (en) 2011-12-22 2018-06-19 Seagate Technology Llc Recording medium with thin stabilization layer having high magnetic saturation and anisotropic field characteristics
JP2014075162A (ja) * 2012-10-03 2014-04-24 Showa Denko Kk 磁気記録媒体及び磁気記録再生装置
JP2014235771A (ja) * 2013-06-05 2014-12-15 ソニー株式会社 磁気記録媒体
US10424329B2 (en) 2013-06-05 2019-09-24 Sony Corporation Magnetic recording medium

Also Published As

Publication number Publication date
US20090011281A1 (en) 2009-01-08
CN101339775A (zh) 2009-01-07
US7901801B2 (en) 2011-03-08

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