KR970706570A - 산화이트륨에 의해 분리된 자기광 필름층을 가진 자기광 기록 매체(magneto-optic recording medium having magneto-optic film layers separated by yttrium oxide) - Google Patents

산화이트륨에 의해 분리된 자기광 필름층을 가진 자기광 기록 매체(magneto-optic recording medium having magneto-optic film layers separated by yttrium oxide)

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Publication number
KR970706570A
KR970706570A KR1019970701968A KR19970701968A KR970706570A KR 970706570 A KR970706570 A KR 970706570A KR 1019970701968 A KR1019970701968 A KR 1019970701968A KR 19970701968 A KR19970701968 A KR 19970701968A KR 970706570 A KR970706570 A KR 970706570A
Authority
KR
South Korea
Prior art keywords
magneto
layers
medium
recording medium
laminated body
Prior art date
Application number
KR1019970701968A
Other languages
English (en)
Inventor
비. 힌츠 마이클
Original Assignee
캘를린 앨리스 베이츠
이메이션 코오포레이션
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 캘를린 앨리스 베이츠, 이메이션 코오포레이션 filed Critical 캘를린 앨리스 베이츠
Publication of KR970706570A publication Critical patent/KR970706570A/ko

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
    • G11B11/10584—Record carriers characterised by the selection of the material or by the structure or form characterised by the form, e.g. comprising mechanical protection elements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
    • G11B11/10586—Record carriers characterised by the selection of the material or by the structure or form characterised by the selection of the material
    • 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
    • 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
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • 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
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264—Up to 3 mils
    • Y10T428/265—1 mil or less

Abstract

본 발명은 투명한 기재(14) 및 그 기재상에 제공된 자기광 적층체를 포함하는 자기광 기록 매체(12,100)에 관한 것이다. 상기 적층체는 두께 10nm 이하인 다수의 자기광 필름 층(20,30,40,50,60 및 70)을 포함한다. 인접한 자기광 필름 층들은 Y2O3를 주성분으로 하는 유전층(25,35,45,55 및 65)에 의해서 분리된다.

Description

산화이트륨에 의해 분리된 자기광 필름층을 가진 자기광 기록 매체(MAGNETO -OPTIC RECORDING MEDIUM HAVING MAGNETO-OPTIC FILM LATERS SEPARATED BY YTTRIUM OXIDE)
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 제1실시예에 의한 자기광 기록 시스템의 측면도이다, 제2도는 본 발명의 제2실시예에 의한 자기광 기록 매체의 측면도이다.

Claims (10)

  1. 투명한 기재(14) 및 그 기재상에 구비된 자기광 적층체를 포함하고, 상기 적층체는 두께 10nm 이하인 다수의 자기광 필름 층(20,30,40,50,60 및 70)을 포함하며, 인접한 자기광 필름 층들은 Y2O3를 주성분으로 하는 유전층(25,35,45,55 및 65)에 의해 분리되는 자기광 기록 매체(12,100).
  2. 제1항에 있어서, 각각의 유전층들의 두께가 1nm 이상인 매체.
  3. 제2항에 있어서, 자기광 필름이 TbFeCo를 포함하는 매체.
  4. 제2항에 있어서, 자기광 필름의 두께가 약 4nm 이하인 매체.
  5. 제4항에 있어서, 자기광 적층체가 6개 이상의 자기광 필름 층을 포함하는 매체.
  6. 제1항에 있어서, YO2가 대략 Y2O3인 매체.
  7. 제1항에 있어서, 유전층(15 및 75)가 자지광 적층체와 기재사이에, 그리고 적층체의 대향하는 단부상에 추가로 구비되는 매체.
  8. 제7항에 있어서, 인접하는 자기광 필름층들이 투명한 스페이서 층(10)에 의해 서로 분리되는 매체.
  9. -투명한 기재(14); -TbFeCo를 포함하는 3개 이상의 자기광 층(20,30 및 40)을 포함하고, 각각의 층의 두께는 약 10nm 이하이며, 인접한 층들은 Y2O3를 주성분으로 하는 두께 약 1nm 이상의 유전층(25 및 35)에 의해 분리되어 있는 자기광 필름 적층체; 및 -보호층(78)을 포함하는 자기광 기록 매체(12).
  10. -투명한 기재(14) 및 그 기재상에 구비된 자기광 적층체를 포함하고, 상기 적층체는 두께 10nm 이하인 다수의 자기광 필름 층(20 및 30)을 포함하며, 인접한 층들은 Y2O3를 주성부능로 하는 유전층(25)에 의해 분리되는 자기광 기록 매체(12,100); -기재를 통해 매체에 입사하도록 배치되며, 자기광 층들중 하나 이상을 당해 층(들)을 자기화 반전시키기에 충분한 온도까지 가열할 수 있는 촛점 레이저(80) 및; 및-매체로부터 사출되는 반사 레이저 빔을 검출하도록 배치된 광검출기(90)을 포함하는 자기광 기록 시스템(10).
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019970701968A 1994-09-27 1995-07-18 산화이트륨에 의해 분리된 자기광 필름층을 가진 자기광 기록 매체(magneto-optic recording medium having magneto-optic film layers separated by yttrium oxide) KR970706570A (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/313,335 US5648163A (en) 1994-09-27 1994-09-27 Magneto-optic recording medium having magneto-optic film layers separated by yttrium oxide
US08/313,335 1994-09-27
PCT/US1995/009036 WO1996010251A1 (en) 1994-09-27 1995-07-18 Magneto-optic recording medium having magneto-optic film layers separated by yttrium oxide

Publications (1)

Publication Number Publication Date
KR970706570A true KR970706570A (ko) 1997-11-03

Family

ID=23215319

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019970701968A KR970706570A (ko) 1994-09-27 1995-07-18 산화이트륨에 의해 분리된 자기광 필름층을 가진 자기광 기록 매체(magneto-optic recording medium having magneto-optic film layers separated by yttrium oxide)

Country Status (7)

Country Link
US (1) US5648163A (ko)
EP (1) EP0783749B1 (ko)
JP (1) JPH10501090A (ko)
KR (1) KR970706570A (ko)
CN (1) CN1158667A (ko)
DE (1) DE69505687T2 (ko)
WO (1) WO1996010251A1 (ko)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5644555A (en) * 1995-01-19 1997-07-01 International Business Machines Corporation Multiple data surface magneto-optical data storage system
US6421303B1 (en) * 1997-11-14 2002-07-16 Fujitsu Limited Multilayer resonance device and magneto-optical recording medium with magnetic center layer of a different thickness than that of the components of the reflecting layers, and method of reproducing the same
JP2006146994A (ja) * 2004-11-16 2006-06-08 Gunma Univ 磁性多層膜及びこれを用いた光磁気記録媒体

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FR2560419B1 (fr) * 1984-02-29 1986-06-13 Bull Sa Milieu d'enregistrement magneto-optique
US4922454A (en) * 1984-10-30 1990-05-01 Brother Kogyo Kabushiki Kaisha Magneto-optical memory medium and apparatus for writing and reading information on and from the medium
US4794053A (en) * 1985-07-01 1988-12-27 Raytheon Company Optical elements having buried layers
US4743502A (en) * 1985-07-10 1988-05-10 Mitsubishi Chemical Industries Limited Magneto-optical medium
EP0239974B1 (en) * 1986-03-29 1991-10-09 Nec Home Electronics Ltd. Magneto-optical recording medium
JPS62264463A (ja) * 1986-05-12 1987-11-17 Fuji Photo Film Co Ltd 光磁気記録媒体
US4849304A (en) * 1986-12-17 1989-07-18 Tdk Corporation Optical recording medium
US4861656A (en) * 1986-12-24 1989-08-29 Tdk Corporation Optical recording medium
JPS6450258A (en) * 1987-08-21 1989-02-27 Sumitomo Metal Mining Co Production of thin film of high-refractive index dielectric material
CN1018100B (zh) * 1987-10-29 1992-09-02 三井石油化学工业株式会社 磁光记录体
JPH01173457A (ja) * 1987-12-28 1989-07-10 Nec Home Electron Ltd 光磁気記録媒体
US5087532A (en) * 1989-08-01 1992-02-11 Minnesota Mining And Manufacturing Company Direct-overwrite magneto-optic media
CA2036890C (en) * 1990-02-28 1996-02-13 Hiroyuki Katayama Magneto-optic recording disk and method of reproducing recorded signals
EP0448919B1 (en) * 1990-03-26 1996-02-14 International Business Machines Corporation Recording media
JPH1173457A (ja) * 1997-08-29 1999-03-16 Fujitsu F I P Kk 顧客管理システムおよび記録媒体

Also Published As

Publication number Publication date
US5648163A (en) 1997-07-15
EP0783749B1 (en) 1998-10-28
DE69505687D1 (de) 1998-12-03
JPH10501090A (ja) 1998-01-27
DE69505687T2 (de) 1999-03-18
CN1158667A (zh) 1997-09-03
WO1996010251A1 (en) 1996-04-04
EP0783749A1 (en) 1997-07-16

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