JPH0232690B2 - - Google Patents

Info

Publication number
JPH0232690B2
JPH0232690B2 JP57077677A JP7767782A JPH0232690B2 JP H0232690 B2 JPH0232690 B2 JP H0232690B2 JP 57077677 A JP57077677 A JP 57077677A JP 7767782 A JP7767782 A JP 7767782A JP H0232690 B2 JPH0232690 B2 JP H0232690B2
Authority
JP
Japan
Prior art keywords
kerr rotation
magnetic
recording medium
rotation angle
film
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.)
Expired - Lifetime
Application number
JP57077677A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58196639A (ja
Inventor
Hiroyoshi Kishi
Masaaki Matsushima
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP7767782A priority Critical patent/JPS58196639A/ja
Priority to DE19833317101 priority patent/DE3317101A1/de
Priority to DE3348423A priority patent/DE3348423C2/de
Publication of JPS58196639A publication Critical patent/JPS58196639A/ja
Priority to US06/671,978 priority patent/US4693943A/en
Publication of JPH0232690B2 publication Critical patent/JPH0232690B2/ja
Priority to US08/485,159 priority patent/US5738950A/en
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/16—Layers for recording by changing the magnetic properties, e.g. for Curie-point-writing
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C45/00—Amorphous alloys
    • C22C45/02—Amorphous alloys with iron as the major constituent
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
    • H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
    • H01F10/12—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys
    • H01F10/13—Amorphous metallic alloys, e.g. glassy metals
    • H01F10/133—Amorphous metallic alloys, e.g. glassy metals containing rare earth metals
    • H01F10/135—Amorphous metallic alloys, e.g. glassy metals containing rare earth metals containing transition metals
    • H01F10/136—Amorphous metallic alloys, e.g. glassy metals containing rare earth metals containing transition metals containing iron
    • 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
    • G11B2007/24302—Metals or metalloids
    • G11B2007/24306—Metals or metalloids transition metal elements of groups 3-10

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Thin Magnetic Films (AREA)
JP7767782A 1982-05-10 1982-05-10 光熱磁気記録媒体 Granted JPS58196639A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP7767782A JPS58196639A (ja) 1982-05-10 1982-05-10 光熱磁気記録媒体
DE19833317101 DE3317101A1 (de) 1982-05-10 1983-05-10 Magnetooptischer aufzeichnungstraeger
DE3348423A DE3348423C2 (de) 1982-05-10 1983-05-10 Verwendung einer amorphen magnetischen quaternären GdTbFeCo-Legierung für die Herstellung einer magnetooptischen Aufzeichnungsschicht
US06/671,978 US4693943A (en) 1982-05-10 1984-11-16 Magnetooptical recording medium
US08/485,159 US5738950A (en) 1982-05-10 1995-06-07 Magnetooptical recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7767782A JPS58196639A (ja) 1982-05-10 1982-05-10 光熱磁気記録媒体

Publications (2)

Publication Number Publication Date
JPS58196639A JPS58196639A (ja) 1983-11-16
JPH0232690B2 true JPH0232690B2 (tr) 1990-07-23

Family

ID=13640514

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7767782A Granted JPS58196639A (ja) 1982-05-10 1982-05-10 光熱磁気記録媒体

Country Status (1)

Country Link
JP (1) JPS58196639A (tr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59148157A (ja) * 1983-02-14 1984-08-24 Yoshifumi Sakurai 光磁気記録媒体
JPS59217249A (ja) * 1983-05-25 1984-12-07 Sony Corp 光磁気記録媒体
JPS60107751A (ja) * 1983-11-17 1985-06-13 Canon Inc 光熱磁気記録媒体
JPH0619859B2 (ja) * 1984-02-16 1994-03-16 株式会社ニコン 光磁気記録媒体
JPS60189208A (ja) * 1984-03-09 1985-09-26 Nippon Hoso Kyokai <Nhk> 光磁気記録媒体

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4947043A (tr) * 1972-08-29 1974-05-07
JPS5637607A (en) * 1979-09-05 1981-04-11 Nissei Electric Method of manufacturing electronic part
JPS5674843A (en) * 1979-11-21 1981-06-20 Fuji Photo Film Co Ltd Photomagnetic recording medium
JPS56126907A (en) * 1980-03-12 1981-10-05 Kokusai Denshin Denwa Co Ltd <Kdd> Magnetic optical recording medium
JPS56143547A (en) * 1980-04-09 1981-11-09 Sharp Corp Magnetooptical storage disk
JPS5873746A (ja) * 1981-10-27 1983-05-04 Kokusai Denshin Denwa Co Ltd <Kdd> 光磁気記録媒体

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4947043A (tr) * 1972-08-29 1974-05-07
JPS5637607A (en) * 1979-09-05 1981-04-11 Nissei Electric Method of manufacturing electronic part
JPS5674843A (en) * 1979-11-21 1981-06-20 Fuji Photo Film Co Ltd Photomagnetic recording medium
JPS56126907A (en) * 1980-03-12 1981-10-05 Kokusai Denshin Denwa Co Ltd <Kdd> Magnetic optical recording medium
JPS56143547A (en) * 1980-04-09 1981-11-09 Sharp Corp Magnetooptical storage disk
JPS5873746A (ja) * 1981-10-27 1983-05-04 Kokusai Denshin Denwa Co Ltd <Kdd> 光磁気記録媒体

Also Published As

Publication number Publication date
JPS58196639A (ja) 1983-11-16

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