JP5346348B2 - 磁気記録媒体、磁気記録装置 - Google Patents

磁気記録媒体、磁気記録装置 Download PDF

Info

Publication number
JP5346348B2
JP5346348B2 JP2011037408A JP2011037408A JP5346348B2 JP 5346348 B2 JP5346348 B2 JP 5346348B2 JP 2011037408 A JP2011037408 A JP 2011037408A JP 2011037408 A JP2011037408 A JP 2011037408A JP 5346348 B2 JP5346348 B2 JP 5346348B2
Authority
JP
Japan
Prior art keywords
magnetic recording
layer
recording medium
magnetic
mgo
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
JP2011037408A
Other languages
English (en)
Japanese (ja)
Other versions
JP2012174320A5 (enExample
JP2012174320A (ja
Inventor
淳一 佐山
育子 武隈
広明 根本
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Ltd filed Critical Hitachi Ltd
Priority to JP2011037408A priority Critical patent/JP5346348B2/ja
Priority to US13/364,682 priority patent/US20120214021A1/en
Publication of JP2012174320A publication Critical patent/JP2012174320A/ja
Publication of JP2012174320A5 publication Critical patent/JP2012174320A5/ja
Application granted granted Critical
Publication of JP5346348B2 publication Critical patent/JP5346348B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
    • G11B5/658—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing oxygen, e.g. molecular oxygen or magnetic oxide
    • 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
    • G11B5/657—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing inorganic, non-oxide compound of Si, N, P, B, H or C, e.g. in metal alloy or compound
    • 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
    • G11B5/737—Physical structure of underlayer, e.g. texture
    • 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]

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Magnetic Record Carriers (AREA)
  • Thin Magnetic Films (AREA)
JP2011037408A 2011-02-23 2011-02-23 磁気記録媒体、磁気記録装置 Expired - Fee Related JP5346348B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2011037408A JP5346348B2 (ja) 2011-02-23 2011-02-23 磁気記録媒体、磁気記録装置
US13/364,682 US20120214021A1 (en) 2011-02-23 2012-02-02 Magnetic recording medium and magnetic recording apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011037408A JP5346348B2 (ja) 2011-02-23 2011-02-23 磁気記録媒体、磁気記録装置

Publications (3)

Publication Number Publication Date
JP2012174320A JP2012174320A (ja) 2012-09-10
JP2012174320A5 JP2012174320A5 (enExample) 2013-04-04
JP5346348B2 true JP5346348B2 (ja) 2013-11-20

Family

ID=46652988

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011037408A Expired - Fee Related JP5346348B2 (ja) 2011-02-23 2011-02-23 磁気記録媒体、磁気記録装置

Country Status (2)

Country Link
US (1) US20120214021A1 (enExample)
JP (1) JP5346348B2 (enExample)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8889275B1 (en) 2010-08-20 2014-11-18 WD Media, LLC Single layer small grain size FePT:C film for heat assisted magnetic recording media
JP5938224B2 (ja) * 2012-02-14 2016-06-22 昭和電工株式会社 磁気記録媒体及び磁気記録再生装置
US9269480B1 (en) * 2012-03-30 2016-02-23 WD Media, LLC Systems and methods for forming magnetic recording media with improved grain columnar growth for energy assisted magnetic recording
JP6014385B2 (ja) * 2012-05-14 2016-10-25 昭和電工株式会社 磁気記録媒体及び磁気記録再生装置
JP6120261B2 (ja) * 2012-10-11 2017-04-26 昭和電工株式会社 磁気記録媒体、磁気記録媒体の製造方法および磁気記録再生装置
JP6088811B2 (ja) * 2012-12-13 2017-03-01 昭和電工株式会社 スパッタリングターゲットの製造方法、磁気記録媒体の製造方法
US10953319B2 (en) * 2013-01-28 2021-03-23 Yimin Guo Spin transfer MRAM element having a voltage bias control
JP6145350B2 (ja) * 2013-07-31 2017-06-07 昭和電工株式会社 磁気記録媒体、磁気記憶装置
WO2017002348A1 (ja) * 2015-07-02 2017-01-05 富士電機株式会社 磁気記録媒体
US10276201B1 (en) 2015-11-02 2019-04-30 WD Media, LLC Dual phase MgO-X seed layers for heat assisted magnetic recording media
US10236026B1 (en) * 2015-11-06 2019-03-19 WD Media, LLC Thermal barrier layers and seed layers for control of thermal and structural properties of HAMR media
US9406329B1 (en) 2015-11-30 2016-08-02 WD Media, LLC HAMR media structure with intermediate layer underlying a magnetic recording layer having multiple sublayers
WO2017184778A1 (en) 2016-04-20 2017-10-26 Arconic Inc. Fcc materials of aluminum, cobalt and nickel, and products made therefrom
JP2019516011A (ja) 2016-04-20 2019-06-13 アーコニック インコーポレイテッドＡｒｃｏｎｉｃ Ｉｎｃ． アルミニウム、コバルト、鉄、及びニッケルのｆｃｃ材料、並びにそれを用いた製品
JP7642435B2 (ja) 2021-05-10 2025-03-10 株式会社レゾナック・ハードディスク 磁気記録媒体、磁気記録媒体の製造方法及び磁気記憶装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3434476B2 (ja) * 1999-09-29 2003-08-11 秋田県 高密度情報記録媒体及びその媒体の製造方法
JP3730906B2 (ja) * 2001-12-03 2006-01-05 日立マクセル株式会社 磁気記録媒体及びその製造方法並びに磁気記録装置
JP4207769B2 (ja) * 2002-12-20 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
US7158346B2 (en) * 2003-12-23 2007-01-02 Seagate Technology Llc Heat assisted magnetic recording film including superparamagnetic nanoparticles dispersed in an antiferromagnetic or ferrimagnetic matrix
SG120182A1 (en) * 2004-08-30 2006-03-28 Agency Science Tech & Res A recording medium
US7521137B2 (en) * 2005-01-12 2009-04-21 Seagate Technology Llc Patterned thin films and use of such films as thermal control layers in heat assisted magnetic recording media
TWI312151B (en) * 2005-06-14 2009-07-11 Chang Ching Ra Tunable magnetic recording medium and its fabricating method
JP2007026558A (ja) * 2005-07-15 2007-02-01 Univ Of Tokyo 磁気記録媒体及びその製造方法
WO2008030199A1 (en) * 2006-09-08 2008-03-13 Agency For Science, Technology And Research Chemically ordered perpendicular recording media
US7892664B2 (en) * 2007-11-28 2011-02-22 Seagate Technology Llc Magnetic recording media having a chemically ordered magnetic layer
JP5067739B2 (ja) * 2008-07-28 2012-11-07 国立大学法人東北大学 磁性薄膜とその成膜方法並びに磁性薄膜の応用デバイス
JP5787344B2 (ja) * 2011-02-15 2015-09-30 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

Also Published As

Publication number Publication date
JP2012174320A (ja) 2012-09-10
US20120214021A1 (en) 2012-08-23

Similar Documents

Publication Publication Date Title
JP5346348B2 (ja) 磁気記録媒体、磁気記録装置
JP5617112B2 (ja) 垂直磁気記録媒体及びその製造方法
JP5145437B2 (ja) 磁気記録媒体
CN100440325C (zh) 垂直磁记录介质、其制造方法及磁存储器件
JP5103097B2 (ja) 垂直磁気記録媒体及びそれを用いた磁気記録再生装置
JP2008176858A (ja) 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
JP2010257567A (ja) 垂直磁気記録媒体およびその製造方法
JP5575172B2 (ja) 磁気記録媒体，磁気記録再生装置，および磁気記録媒体の製造方法
JP2009116930A (ja) 垂直磁気記録媒体およびそれを用いた磁気記録再生装置
JP2007179598A (ja) 磁気記録媒体、その製造方法および、磁気記録再生装置
WO2015151425A1 (ja) 磁気記録媒体
JP2009059431A (ja) 磁気記録媒体および磁気記録再生装置
JP4746778B2 (ja) 磁気記録媒体及びそれを用いた磁気記憶装置
JP2010044842A (ja) 磁気記録媒体、その製造方法および磁気記録再生装置
JP5938224B2 (ja) 磁気記録媒体及び磁気記録再生装置
JP5325945B2 (ja) 垂直磁気記録媒体及び磁気記録再生装置
JP5535293B2 (ja) 磁気記録媒体の製造方法
JP2006155865A (ja) 垂直磁気記録媒体および垂直磁気記録再生装置
JP6416041B2 (ja) 垂直磁気記録媒体及び磁気記録再生装置
CN102576546B (zh) 磁记录介质和磁记录再生装置
JP6606802B2 (ja) 高配向ＦｅＰｔ磁気記録媒体、高配向ＦｅＰｔ磁気記録媒体を用いた熱アシスト磁気記録装置、高配向ＦｅＰｔ磁気記録媒体の製造方法
KR100601938B1 (ko) Ｃｏ계 수직자기기록매체
JP6451011B2 (ja) 垂直磁気記録媒体及び磁気記録再生装置
JP5737676B2 (ja) 磁気記録媒体及び磁気記録再生装置
JP4072324B2 (ja) 磁気記録媒体及びその製造方法

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20130219

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20130219

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20130515

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20130521

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20130619

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20130723

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20130816

LAPS Cancellation because of no payment of annual fees