KR940020331A - 광자기 기록 매체 - Google Patents

광자기 기록 매체 Download PDF

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Publication number
KR940020331A
KR940020331A KR1019930002689A KR930002689A KR940020331A KR 940020331 A KR940020331 A KR 940020331A KR 1019930002689 A KR1019930002689 A KR 1019930002689A KR 930002689 A KR930002689 A KR 930002689A KR 940020331 A KR940020331 A KR 940020331A
Authority
KR
South Korea
Prior art keywords
film
magneto
optical recording
recording
recording medium
Prior art date
Application number
KR1019930002689A
Other languages
English (en)
Other versions
KR950005965B1 (ko
Inventor
문혁
Original Assignee
이헌조
주식회사 금성사
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 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019930002689A priority Critical patent/KR950005965B1/ko
Priority to JP6053225A priority patent/JPH06318346A/ja
Publication of KR940020331A publication Critical patent/KR940020331A/ko
Application granted granted Critical
Publication of KR950005965B1 publication Critical patent/KR950005965B1/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

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)

Abstract

본 발명은 기록막 조성에 크롬(Cr)을 첨가하여 외부자계에 대한 기록 감도를 향상시킴과 함께 내산화성을 증대시키는 광자기 기록매체에 관한것으로. 기판상에 보호막/기록막/보호막/반사막의 적층 구조를 갖는 것에 있어서, 기록막을 이루는 희토류-천이금속 조성물에 Cr을 첨가하여서된 기록막을 갖는 광자기 기록매체에 관한 기술임.

Description

광자기 기록 매체
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 종래 광자기 기록 매체의 구조도,
제2도는 본 발명의 광자기 기록 매체의 구조도,
제3도는 자계 감도 특성을 나타낸 그래프,
제4도는 내산화성 특성을 나타낸 그래프.

Claims (3)

  1. 기판상에 보호막/기록막/보호막/반사막의 적층 구조를 갖는 광자기 기록매체에 있어서, 기록막을 이루는 희토류-천이금속 조성에 자계 감도 및 내산화성을 향상시키기 위해 크롬(Cr)이 첨가된것을 특징으로하는 광자기 기록 매체.
  2. 제1항에 있어서, 기록막의 조성이(TbDy)28-x(FeCo)72Crxat%(여기서 x=5-12at%임)로 이루어짐을 특성으로 하는 광자기 기록매체.
  3. 제1항 또는 제2항에 있어서, 기록막의 두께가 100-300Å임을 특징으로하는 광자기 기록매체.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019930002689A 1993-02-25 1993-02-25 광자기 기록 매체 KR950005965B1 (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1019930002689A KR950005965B1 (ko) 1993-02-25 1993-02-25 광자기 기록 매체
JP6053225A JPH06318346A (ja) 1993-02-25 1994-02-25 光磁気記録媒体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930002689A KR950005965B1 (ko) 1993-02-25 1993-02-25 광자기 기록 매체

Publications (2)

Publication Number Publication Date
KR940020331A true KR940020331A (ko) 1994-09-16
KR950005965B1 KR950005965B1 (ko) 1995-06-07

Family

ID=19351244

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930002689A KR950005965B1 (ko) 1993-02-25 1993-02-25 광자기 기록 매체

Country Status (2)

Country Link
JP (1) JPH06318346A (ko)
KR (1) KR950005965B1 (ko)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0782943B2 (ja) * 1984-05-04 1995-09-06 株式会社リコー 非晶質磁気光学層
JPS6289254A (ja) * 1985-10-16 1987-04-23 Sumitomo Metal Mining Co Ltd 光磁気記録媒体
JPH06187681A (ja) * 1992-12-16 1994-07-08 Ricoh Co Ltd 光磁気記録媒体

Also Published As

Publication number Publication date
JPH06318346A (ja) 1994-11-15
KR950005965B1 (ko) 1995-06-07

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