SG139608A1 - Perpendicular magnetic recording medium and magnetic storage apparatus - Google Patents

Perpendicular magnetic recording medium and magnetic storage apparatus

Info

Publication number
SG139608A1
SG139608A1 SG200607988-3A SG2006079883A SG139608A1 SG 139608 A1 SG139608 A1 SG 139608A1 SG 2006079883 A SG2006079883 A SG 2006079883A SG 139608 A1 SG139608 A1 SG 139608A1
Authority
SG
Singapore
Prior art keywords
recording medium
storage apparatus
substrate
magnetic recording
orientation controlling
Prior art date
Application number
SG200607988-3A
Other languages
English (en)
Inventor
Takashi Gouke
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of SG139608A1 publication Critical patent/SG139608A1/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
    • G11B5/74—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
    • G11B5/62—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
    • G11B5/667—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers including a soft magnetic 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
    • G11B5/127—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
    • 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
    • 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
    • G11B5/7371—Non-magnetic single underlayer comprising nickel
    • 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
    • G11B5/7373—Non-magnetic single underlayer comprising chromium
    • 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
    • G11B5/7377—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
    • 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)
SG200607988-3A 2006-07-31 2006-11-17 Perpendicular magnetic recording medium and magnetic storage apparatus SG139608A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006208431A JP2008034060A (ja) 2006-07-31 2006-07-31 垂直磁気記録媒体および磁気記憶装置

Publications (1)

Publication Number Publication Date
SG139608A1 true SG139608A1 (en) 2008-02-29

Family

ID=38985977

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200607988-3A SG139608A1 (en) 2006-07-31 2006-11-17 Perpendicular magnetic recording medium and magnetic storage apparatus

Country Status (5)

Country Link
US (1) US7604879B2 (zh)
JP (1) JP2008034060A (zh)
KR (2) KR20080012108A (zh)
CN (1) CN100583246C (zh)
SG (1) SG139608A1 (zh)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7632580B2 (en) * 2005-06-06 2009-12-15 Hitachi Global Storage Technologies Netherlands, B.V. Perpendicular magnetic recording medium having an interlayer of a non-magnetic nickel alloy
JP4928751B2 (ja) * 2005-07-14 2012-05-09 ダブリュディ・メディア・シンガポール・プライベートリミテッド 垂直磁気記録媒体
JP2007184066A (ja) * 2006-01-10 2007-07-19 Hitachi Global Storage Technologies Netherlands Bv 垂直磁気記録媒体及びこれを用いた磁気記憶装置
JP2008276915A (ja) * 2007-03-30 2008-11-13 Hoya Corp 磁気記録媒体
US9028984B2 (en) * 2007-04-13 2015-05-12 Fuji Electric Co., Ltd. Perpendicular magnetic recording medium
US8760806B2 (en) 2008-04-28 2014-06-24 Hitachi, Ltd. Microwave assisted magnetic recording head and microwave assisted magnetic recording apparatus having a magnetic flux rectifying layer with a magnetic flux rectifying action
JP2009289360A (ja) * 2008-05-30 2009-12-10 Fujitsu Ltd 垂直磁気記録媒体及び磁気記憶装置
JP5182631B2 (ja) 2008-09-02 2013-04-17 富士電機株式会社 垂直磁気記録媒体
WO2010073324A1 (ja) * 2008-12-24 2010-07-01 昭和電工株式会社 磁気記憶媒体及び磁気記録装置
JP5569213B2 (ja) 2010-07-26 2014-08-13 富士電機株式会社 垂直磁気記録媒体
US9093101B2 (en) * 2011-02-28 2015-07-28 Seagate Technology Llc Stack including a magnetic zero layer
JP5177256B2 (ja) 2011-06-03 2013-04-03 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
US9117477B2 (en) * 2013-05-08 2015-08-25 HGST Netherlands B.V. Perpendicular magnetic recording media having novel seed layer
CA2938974C (en) 2014-02-07 2023-08-22 Gojo Industries, Inc. Compositions and methods with efficacy against spores and other organisms
JP6221907B2 (ja) * 2014-03-31 2017-11-01 ソニー株式会社 磁気記録媒体
JP6502672B2 (ja) * 2015-01-09 2019-04-17 山陽特殊製鋼株式会社 Ｎｉ−Ｃｕ系磁気記録媒体のシード層用合金およびスパッタリングターゲット材並びに磁気記録媒体
JP2018106774A (ja) * 2016-12-27 2018-07-05 昭和電工株式会社 磁気記録媒体および磁気記憶装置

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5759681A (en) 1995-02-03 1998-06-02 Hitachi, Ltd. Magnetic recording medium and magnetic recording system using the same
JP3933732B2 (ja) 1996-08-30 2007-06-20 ストアメディア インコーポレーテッド 金属薄膜型磁気記録媒体
JP2001216620A (ja) 2000-01-31 2001-08-10 Hitachi Maxell Ltd 磁気記録媒体及び磁気記録再生装置
JP3643536B2 (ja) 2001-01-22 2005-04-27 株式会社日立製作所 垂直磁気記録媒体及び磁気記憶装置
JP4707265B2 (ja) * 2001-05-30 2011-06-22 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
JP4083494B2 (ja) * 2001-08-01 2008-04-30 昭和電工株式会社 磁気記録媒体、その製造方法、および磁気記録再生装置
US6682826B2 (en) * 2001-08-01 2004-01-27 Showa Denko K.K. Magnetic recording medium, method of manufacturing therefor, and magnetic read/write apparatus
JP4626840B2 (ja) * 2001-08-31 2011-02-09 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その製造方法
JP3755449B2 (ja) * 2001-10-05 2006-03-15 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
US7247396B2 (en) 2003-01-30 2007-07-24 Seagate Technology Llc Highly oriented perpendicular magnetic recording media
US7211340B2 (en) 2003-01-30 2007-05-01 Seagate Technology Llc Thin film structures providing strong basal plane growth orientation and magnetic recording media comprising same
US7226674B2 (en) 2003-02-07 2007-06-05 Hitachi Maxell, Ltd. Magnetic recording medium, method for producing the same, and magnetic recording apparatus
US6893748B2 (en) * 2003-05-20 2005-05-17 Komag, Inc. Soft magnetic film for perpendicular recording disk
JP2005190517A (ja) * 2003-12-24 2005-07-14 Hitachi Global Storage Technologies Netherlands Bv 垂直磁気記録媒体及び磁気記憶装置
WO2005088609A1 (ja) * 2004-03-15 2005-09-22 Fuji Electric Device Technology Co., Ltd. 垂直磁気記録媒体、その製造方法、および磁気記録装置
JP4411134B2 (ja) 2004-05-13 2010-02-10 キヤノンアネルバ株式会社 垂直磁気記録媒体
JP4864391B2 (ja) * 2004-09-06 2012-02-01 昭和電工株式会社 磁気記録媒体、その製造方法および磁気記録再生装置
US7632580B2 (en) * 2005-06-06 2009-12-15 Hitachi Global Storage Technologies Netherlands, B.V. Perpendicular magnetic recording medium having an interlayer of a non-magnetic nickel alloy
JP4499044B2 (ja) * 2006-01-04 2010-07-07 ヒタチグローバルストレージテクノロジーズネザーランドビーブイ 垂直磁気記録媒体及びこれを用いた磁気記憶装置
JP2007250120A (ja) * 2006-03-17 2007-09-27 Fujitsu Ltd 磁気記録媒体
JP4628294B2 (ja) * 2006-03-30 2011-02-09 ヒタチグローバルストレージテクノロジーズネザーランドビーブイ 磁気記憶装置

Also Published As

Publication number Publication date
KR20080089559A (ko) 2008-10-07
KR20080012108A (ko) 2008-02-11
JP2008034060A (ja) 2008-02-14
US7604879B2 (en) 2009-10-20
CN101118752A (zh) 2008-02-06
US20080024918A1 (en) 2008-01-31
CN100583246C (zh) 2010-01-20

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