KR860007645A - 광자기 기록매체 - Google Patents

광자기 기록매체 Download PDF

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Publication number
KR860007645A
KR860007645A KR1019860001614A KR860001614A KR860007645A KR 860007645 A KR860007645 A KR 860007645A KR 1019860001614 A KR1019860001614 A KR 1019860001614A KR 860001614 A KR860001614 A KR 860001614A KR 860007645 A KR860007645 A KR 860007645A
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magneto
optical recording
recording medium
amorphous film
medium according
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KR1019860001614A
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KR940008408B1 (ko
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신지 다가야마
도시오 니이하라
가쯔히로 가네고
마사히고 다가하시
유다가 스기다
Original Assignee
가부시기가이샤 히다찌세이사꾸쇼
미쓰다 가쓰시게
가부시기가이샤 히다찌 세이 사꾸쇼
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Publication of KR860007645A publication Critical patent/KR860007645A/ko
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Publication of KR940008408B1 publication Critical patent/KR940008408B1/ko

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    • 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
    • G11B11/10589—Details
    • G11B11/10591—Details for improving write-in properties, e.g. Curie-point temperature
    • 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

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

Abstract

내용 없음

Description

광자기 기록매체
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 1 도는 Tb-Fe-Co 비정질막으로, Fe 대신에 첨가 원소 R를 치환한때의, 치환량 1원자 퍼센트 당의 결정화 온도 Tx, 큐리온도 Tc, 카회전각 θK의 변화를 도시한 도면.
제 2 도는 Tb21Fe60-xCo19Rx 비정질막(R=Nb, Ta, Rh, Er ,Ho)으로 첨가량 Rx를 변화 시켰을대의 결정화 온도 Tx, 카회전 θK각의 변화를 도시한 도면,
제 3 도는 Tb-Fe-Co 계 비정질막의 반사율 R의 경시 변화를 도시한 도면.

Claims (26)

  1. 소정의 기판과, 그 기판위에 형성된 희토류-철족계 비정질막을 가지고, 그 비정질막은, Er, Ho, Nb, Ta, Rh, W로 되는 무리에서 선택된 적어도 한가지의 원소를 0.5원자 퍼센트 이상 포함하는 광자기 기록매체.
  2. 특허청구의 범위 제 1 항에 있어서, 상기 첨가 원소는 10원자 퍼센트 이하인 광자기 기록매체.
  3. 특허청구의 범위 제 2 항에 있어서, 희토류-철족계 비정질막은, Er, Ho, Nb, Ta, Rh, W으로 되는 무리에서 선택된 적어도 한가지의 원소를 0.5% 이상 10% 원자%이하를 포함하는 Fe계 합금과,
    Er, Ta, W으로 되는 무리에서 선택된 적어도 한가지의 원소를 0.5원자%이상 10원자%이하를 포함하는 Co계 합금과,
    Er, Ta, W으로 되는 무리에서 선택된 적어도 한가지의 원소를 0.5원자%이상 10원자%이하 포함하고, 철족 원소가(Fe0.5Co0.5)의 비율로 되는 합금의 무리에서 선택된 광자기 기록매체.
  4. 특허청구의 범위 제 1 항에 있어서, 희토류-철족계 비정질막은 Fe계 합금으로 되는 광자기 기록매체.
  5. 특허청구의 범위 제 2 항에 있어서, 희토류-철족계 비정질막은 Fe 계합금인 광자기 기록매체.
  6. 특허청구의 범위 제 1 항에 있어서, 희토류-철족계 비정질막은 Co 계합금인 광자기 기록매체.
  7. 특허청구의 범위 제 2 항에 있어서, 희토류-철족계 비정질막은 Co 계합금으로 되는 광자기 기록매체.
  8. 특허청구의 범위 제 1 항에 있어서, 희토류-철족계 비정질막은 Tb-Fe-Co 계합금으로 되는 광자기 기록매체.
  9. 특허청구의 범위 제 2 항에 있어서, 희토류-철족계 비정질막은 Tb-Fe-Co 계합금으로 되는 광자기 기록매체.
  10. 특허청구의 범위 제 1 항에 있어서, 비정질막 위에 보호막을 마련한 광자기 기록매체.
  11. 특허청구의 범위 제 2 항에 있어서, 비정질막 위에 보호막을 마련한 광자기 기록매체.
  12. 특허청구의 범위 제 1 항에 있어서, 기판과 비정질막과의 사이에 간섭막을 형성한 광자기 기록매체.
  13. 특허청구의 범위 제 2 항에 있어서, 기판과 비정질막과의 사이에 간섭막을 형성한 광자기 기록매체.
  14. 소정의 기판과, 그 기판위에 형성된 희토류-철족계 비정질막을 가지고, 그 비정질막은, Nb, Ta, Rh, W로 되는 무리에서 선택된 적어도 한가지의 원소를 0.5원자 퍼센트 이상 포함하는 광자기 기록매체.
  15. 특허청구의 범위 제14항에 있어서, 상기 첨가 원소는 10원자 퍼센트 이하인 광자기 기록매체.
  16. 특허청구의 범위 제14항에 있어서, 상기 첨가 원소는 4∼8원자 퍼센트인 광자기 기록매체.
  17. 특허청구의 범위 제14항에 있어서, 상기 희토류-철족계 비정질막은 Fe 계합금으로 되는 광자기 기록매체.
  18. 특허청구의 범위 제15항에 있어서, 희토류-철족계 비정질막은 Fe 계합금으로 되는 광자기 기록매체.
  19. 특허청구의 범위 제14항에 있어서, 희토류-철족계 비정질막은 Co 계합금인 광자기 기록매체.
  20. 특허청구의 범위 제15항에 있어서, 희토류-철족계 비정질막은 Co 계합금으로 되는 광자기 기록매체.
  21. 특허청구의 범위 제14항에 있어서, 희토류-철족계 비정질막은 Tb-Fe-Co 계합금으로 되는 광자기 기록매체.
  22. 특허청구의 범위 제15항에 있어서, 희토류-철족계 비정질막은 Tb-Fe-Co 계합금으로 되는 광자기 기록매체.
  23. 특허청구의 범위 제 14 항에 있어서, 비정질막 위에 보호막을 마련한 광자기 기록매체.
  24. 특허청구의 범위 제 15 항에 있어서, 비정질막 위에 보호막을 마련한 광자기 기록매체.
  25. 특허청구의 범위 제 14 항에 있어서, 기판과 비정질막과의 사이에 간섭막을 형성한 광자기 기록매체.
  26. 특허청구의 범위 제 15 항에 있어서, 기판과 비정질막과의 사이에 간섭막을 형성한 광자기 기록매체.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019860001614A 1985-03-20 1986-03-07 광자기 기록매체 KR940008408B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP60054422A JPS61214254A (ja) 1985-03-20 1985-03-20 光磁気記録材料
JP54422 1985-03-20
JP60-54422 1985-12-27

Publications (2)

Publication Number Publication Date
KR860007645A true KR860007645A (ko) 1986-10-15
KR940008408B1 KR940008408B1 (ko) 1994-09-14

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Application Number Title Priority Date Filing Date
KR1019860001614A KR940008408B1 (ko) 1985-03-20 1986-03-07 광자기 기록매체

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JP (1) JPS61214254A (ko)
KR (1) KR940008408B1 (ko)
DE (1) DE3604642A1 (ko)
NL (1) NL191807C (ko)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2601796B2 (ja) * 1985-12-05 1997-04-16 日立マクセル株式会社 光磁気記録媒体
JPH0782670B2 (ja) * 1985-07-12 1995-09-06 株式会社日立製作所 光磁気記録媒体
JPS6297153A (ja) * 1985-10-23 1987-05-06 Sumitomo Metal Mining Co Ltd 磁性薄膜記録媒体
KR890012281A (ko) * 1987-01-14 1989-08-25 도날드 밀러 셀 안정한 자기 광학기록매체
DE3912378A1 (de) * 1988-04-14 1989-10-26 Ricoh Kk Magneto-optisches aufzeichnungsmaterial
JP3130929B2 (ja) * 1990-08-10 2001-01-31 ミネソタ マイニング アンド マニュファクチャリング カンパニー 高い記憶密度と直接重ね書きケイパビリティを有する熱磁気記録システム

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7900921A (nl) * 1979-02-06 1980-08-08 Philips Nv Thermomagnetische informatiedrager en optische geheu- geninrichting voorzien van een dergelijke informatie- drager.
JPS6032331B2 (ja) * 1980-03-12 1985-07-27 ケイディディ株式会社 磁気光学記録媒体
JPS5873746A (ja) * 1981-10-27 1983-05-04 Kokusai Denshin Denwa Co Ltd <Kdd> 光磁気記録媒体
CA1206505A (en) * 1982-03-18 1986-06-24 Richard A. Phillips Immersed element protection
DE3317101A1 (de) * 1982-05-10 1983-11-10 Canon K.K., Tokyo Magnetooptischer aufzeichnungstraeger
JPS5984358A (ja) * 1982-11-04 1984-05-16 Seiko Instr & Electronics Ltd 光磁気記録媒体
DE3382791T2 (de) * 1982-12-15 1995-12-07 Sharp Kk Magneto-optischer Speicher.
JPS59178641A (ja) * 1983-03-29 1984-10-09 Kokusai Denshin Denwa Co Ltd <Kdd> 光磁気記録媒体
JPS6115308A (ja) * 1984-07-02 1986-01-23 Hitachi Ltd 光磁気記録材料
JPS6119644A (ja) * 1984-07-06 1986-01-28 Idemitsu Petrochem Co Ltd 線状低密度ポリエチレン樹脂組成物
JPS6134744A (ja) * 1984-07-25 1986-02-19 Hitachi Ltd 磁気光学記録媒体
JPS6184803A (ja) * 1984-10-03 1986-04-30 Oki Electric Ind Co Ltd 光磁気記録用材料

Also Published As

Publication number Publication date
DE3604642C2 (ko) 1993-02-11
DE3604642A1 (de) 1986-10-02
JPS61214254A (ja) 1986-09-24
NL191807C (nl) 1996-08-02
NL8600379A (nl) 1986-10-16
NL191807B (nl) 1996-04-01
KR940008408B1 (ko) 1994-09-14

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