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WO2009047866A1 - 磁気記録媒体、磁気記録方法および磁気記録装置 - Google Patents

磁気記録媒体、磁気記録方法および磁気記録装置 Download PDF

Info

Publication number
WO2009047866A1
WO2009047866A1 PCT/JP2007/069989 JP2007069989W WO2009047866A1 WO 2009047866 A1 WO2009047866 A1 WO 2009047866A1 JP 2007069989 W JP2007069989 W JP 2007069989W WO 2009047866 A1 WO2009047866 A1 WO 2009047866A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic recording
piezoelectric material
material portions
recording layer
substrate
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.)
Ceased
Application number
PCT/JP2007/069989
Other languages
English (en)
French (fr)
Inventor
Hisato Shibata
Hideaki Takahoshi
Yuuki Yoshida
Akira Kikuchi
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.)
Fujitsu Ltd
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
Priority to JP2009536906A priority Critical patent/JP4767346B2/ja
Priority to PCT/JP2007/069989 priority patent/WO2009047866A1/ja
Priority to US12/682,541 priority patent/US8374070B2/en
Publication of WO2009047866A1 publication Critical patent/WO2009047866A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/855—Coating only part of a support with a magnetic layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
    • 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
    • G11B5/743—Patterned record carriers, wherein the magnetic recording layer is patterned into magnetic isolated data islands, e.g. discrete tracks
    • 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
    • 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)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Magnetic Record Carriers (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

　基板と、基板上に形成され、磁気情報を記録する磁気記録層と、磁気記録層に隣接して配置され、伸縮可能である圧電材料とを有する磁気記録媒体が開示されている。好ましくは、圧電材料は、基板上で、磁気記録層上のトラックを横切る方向に所定の間隔を空けて形成され、磁気記録層は、圧電材料の間に形成される。圧電材料は、レーザ光または紫外線を照射することで、少なくともトラックを横切る方向に伸縮する。圧電材料は、チタン酸ジルコン酸ランタン鉛、チタン酸バリウムまたはニオブ酸カリウムである。
PCT/JP2007/069989 2007-10-12 2007-10-12 磁気記録媒体、磁気記録方法および磁気記録装置 Ceased WO2009047866A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2009536906A JP4767346B2 (ja) 2007-10-12 2007-10-12 磁気記録媒体、磁気記録方法および磁気記録装置
PCT/JP2007/069989 WO2009047866A1 (ja) 2007-10-12 2007-10-12 磁気記録媒体、磁気記録方法および磁気記録装置
US12/682,541 US8374070B2 (en) 2007-10-12 2007-10-12 Magnetic recording medium having piezoelectric material and apparatus for recording information data into such magnetic medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/069989 WO2009047866A1 (ja) 2007-10-12 2007-10-12 磁気記録媒体、磁気記録方法および磁気記録装置

Publications (1)

Publication Number Publication Date
WO2009047866A1 true WO2009047866A1 (ja) 2009-04-16

Family

ID=40549022

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/069989 Ceased WO2009047866A1 (ja) 2007-10-12 2007-10-12 磁気記録媒体、磁気記録方法および磁気記録装置

Country Status (3)

Country Link
US (1) US8374070B2 (ja)
JP (1) JP4767346B2 (ja)
WO (1) WO2009047866A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009163840A (ja) * 2008-01-09 2009-07-23 Sharp Corp 磁気記録媒体および磁気記録方法
JP2012014782A (ja) * 2010-06-30 2012-01-19 Kyocera Kinseki Corp 磁気ディスク用基板の製造方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8765273B1 (en) 2012-08-21 2014-07-01 Seagate Technology Llc Tuned heatsink layers
US11032011B2 (en) * 2017-04-06 2021-06-08 Arizona Board Of Regents On Behalf Of The University Of Arizona Systems and methods for a quantum-analogue computer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000020935A (ja) * 1998-06-30 2000-01-21 Toshiba Corp 磁気記録媒体、その製造方法、及びこれを用いた磁気記録装置
JP2004265498A (ja) * 2003-02-28 2004-09-24 Toshiba Corp 磁気記録媒体及び磁気記録再生装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5868209A (ja) 1981-10-19 1983-04-23 Matsushita Electric Ind Co Ltd 垂直磁気ヘツド
JPS5919220A (ja) 1982-07-23 1984-01-31 Canon Inc 垂直磁気記録型磁気ヘツド
JP2000163732A (ja) * 1998-11-27 2000-06-16 Toshiba Corp 磁気記録媒体及びその製造方法
JP2000195033A (ja) * 1998-12-25 2000-07-14 Toshiba Corp 磁気記録媒体
JP4141811B2 (ja) * 2002-11-18 2008-08-27 パイオニア株式会社 情報記録読取ヘッド
US7706103B2 (en) * 2006-07-25 2010-04-27 Seagate Technology Llc Electric field assisted writing using a multiferroic recording media

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000020935A (ja) * 1998-06-30 2000-01-21 Toshiba Corp 磁気記録媒体、その製造方法、及びこれを用いた磁気記録装置
JP2004265498A (ja) * 2003-02-28 2004-09-24 Toshiba Corp 磁気記録媒体及び磁気記録再生装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009163840A (ja) * 2008-01-09 2009-07-23 Sharp Corp 磁気記録媒体および磁気記録方法
JP2012014782A (ja) * 2010-06-30 2012-01-19 Kyocera Kinseki Corp 磁気ディスク用基板の製造方法

Also Published As

Publication number Publication date
JP4767346B2 (ja) 2011-09-07
JPWO2009047866A1 (ja) 2011-02-17
US20100246045A1 (en) 2010-09-30
US8374070B2 (en) 2013-02-12

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