KR890007249A - 자기광학 기록매체 - Google Patents

자기광학 기록매체 Download PDF

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Publication number
KR890007249A
KR890007249A KR1019880014054A KR880014054A KR890007249A KR 890007249 A KR890007249 A KR 890007249A KR 1019880014054 A KR1019880014054 A KR 1019880014054A KR 880014054 A KR880014054 A KR 880014054A KR 890007249 A KR890007249 A KR 890007249A
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KR
South Korea
Prior art keywords
film
magneto
optical recording
self
recording medium
Prior art date
Application number
KR1019880014054A
Other languages
English (en)
Other versions
KR910006659B1 (ko
Inventor
류지 사또
구니히꼬 미즈모도
유지 도가미
노부오 사이또
Original Assignee
다게바야시 쇼오고
미쓰이 세끼유 가가꾸 고오교오 가부시끼가이샤
이깨다 마사구라
닛뽄 호소 교오까이
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
Priority claimed from JP62274767A external-priority patent/JPH01116945A/ja
Priority claimed from JP62335559A external-priority patent/JPH01179243A/ja
Application filed by 다게바야시 쇼오고, 미쓰이 세끼유 가가꾸 고오교오 가부시끼가이샤, 이깨다 마사구라, 닛뽄 호소 교오까이 filed Critical 다게바야시 쇼오고
Publication of KR890007249A publication Critical patent/KR890007249A/ko
Application granted granted Critical
Publication of KR910006659B1 publication Critical patent/KR910006659B1/ko

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • 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
    • 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
    • G11B11/10586—Record carriers characterised by the selection of the material or by the structure or form characterised by the selection of the material
    • G11B11/10589—Details

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Thin Magnetic Films (AREA)

Abstract

내용 없음

Description

자기광학 기록매체
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 제1자기광학 기록매체 10의 요부를 나타낸 단면도.
제2도는 본 발명의 제2자기광학 기록매체 20의 요부를 나타낸 단면도.

Claims (8)

  1. 회토류 금속과 천이금속을 함유하는 적어도 두 개의 자기합금막들과, 적어도 두 개의 투명막들이 기판상에 상기 자기합금막들과 상기 투명막들의 각각이 상하로, 교호로 놓이게 적층되고 상기 자기합금막의 막두께가 5-250Å, 상기 투명막의 막두께가 5-4000Å 및 상기 자기합금막과 상기 투명막의 합계막 두께가 1μm이하인 것을 특징으로 하는 자기광학 기록매체.
  2. 제1항에 있어서, 회토류 금석이 Sm, Nd, Pr, Eu, Gd, Tb, Dy 및 Ho 중에서 선택되는 적어도 하나의 원소이고, 천이금속은 Fe, Co 및 Ni 중에서 선택되는 적어도 하나의 원소인 것을 특징으로 하는 자기광학 기록매체.
  3. 제1항에 있어서 자기합금막이 무정형 자기합금막인 것을 특징으로 하는 자기광학 기록매체.
  4. 제1항에 있어서, 투명막의 굴절율이 n이 1.3-4.0 이고 홉광계수 k가 k0.5인 것을 특징으로 하는 자기광학 기록매체.
  5. 제1항에 있어서, 투명막이 SiOx(0＜x2),ZnS, MgF2, AlNx(0＜x1), ZnO, SiNx(0x4/3)중에서 선택되는 적어도 하나인 것을 특징으로 하는 자기광학 기록매체.
  6. 회토류 금속과 천이금속을 함유하는 적어도 두 개의 자기합금막들과 적어도 두 개의 금속막들이 기판상에 상기 자기합금막들과 상기 금속막들의 각각이 상하로 교호로 놓이게 적층되고 상기 자기합금막의 막두께가 5-200Å이고, 상기 금속막의 막두께가 5-200Å인 것을 특징으로 하는 자기광학 기록매체.
  7. 제6항에 있어서, 회토류 금속이 Sm, Nd, Pr, Eu, Gd, Tb, Dy 및 Ho 중에서 선택되는 적어도 하나의 원소이고, 천이금속은 Fe, Co 및 Ni 중에서 선택되는 적어도 하나의 원소인 것을 특징으로 하는 자기광학 기록매체.
  8. 제6항에 있어서, 금속막이 Fe, Co. Ni, Pd, Pt 및 Ti 중에서 선택되는 적어도 하나인 것을 특징으로 하는 자기광학 기록매체.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019880014054A 1987-10-29 1988-10-28 자기광학 기록매체 KR910006659B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP62-274767 1987-10-29
JP62274767A JPH01116945A (ja) 1987-10-29 1987-10-29 光磁気記録媒体
JP62-335559 1987-12-28
JP62335559A JPH01179243A (ja) 1987-12-28 1987-12-28 光磁気記録媒体

Publications (2)

Publication Number Publication Date
KR890007249A true KR890007249A (ko) 1989-06-19
KR910006659B1 KR910006659B1 (ko) 1991-08-30

Family

ID=26551188

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880014054A KR910006659B1 (ko) 1987-10-29 1988-10-28 자기광학 기록매체

Country Status (3)

Country Link
EP (1) EP0314518A3 (ko)
KR (1) KR910006659B1 (ko)
CN (1) CN1018100B (ko)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69025395T2 (de) * 1990-03-26 1996-09-19 Ibm Datenträger
US6665235B2 (en) 1992-11-06 2003-12-16 Sharp Kabushiki Kaisha Magneto-optical recording medium and recording and reproducing method and optical head designed for the magneto-optical recording medium
EP0596716B1 (en) 1992-11-06 2002-05-15 Sharp Kabushiki Kaisha Magneto-optical recording medium and recording and reproducing method and optical head designed for the magneto-optical recording medium
JPH06162583A (ja) * 1992-11-19 1994-06-10 Canon Inc 光磁気記録媒体
US5565266A (en) * 1993-06-14 1996-10-15 Eastman Kodak Company Multilayer magnetooptic recording media
US5648163A (en) * 1994-09-27 1997-07-15 Imation Corp. Magneto-optic recording medium having magneto-optic film layers separated by yttrium oxide
CN111101203B (zh) * 2018-10-25 2022-04-19 中国科学院理化技术研究所 高稀土含量的硅铝酸盐晶体及其制备方法和应用

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5952443A (ja) * 1982-09-14 1984-03-27 Kokusai Denshin Denwa Co Ltd <Kdd> 光磁気記録媒体
JPS6154059A (ja) * 1984-08-24 1986-03-18 Hitachi Ltd 磁気光学記録膜

Also Published As

Publication number Publication date
CN1018100B (zh) 1992-09-02
CN1032876A (zh) 1989-05-10
KR910006659B1 (ko) 1991-08-30
EP0314518A2 (en) 1989-05-03
EP0314518A3 (en) 1990-08-29

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