JPS5960746A - 光磁気記録媒体 - Google Patents

光磁気記録媒体

Info

Publication number
JPS5960746A
JPS5960746A JP16971082A JP16971082A JPS5960746A JP S5960746 A JPS5960746 A JP S5960746A JP 16971082 A JP16971082 A JP 16971082A JP 16971082 A JP16971082 A JP 16971082A JP S5960746 A JPS5960746 A JP S5960746A
Authority
JP
Japan
Prior art keywords
thin film
film
rare earth
layer
transition metal
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.)
Granted
Application number
JP16971082A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0519213B2 (enrdf_load_stackoverflow
Inventor
Yasuo Sawada
康雄 沢田
Masaaki Nomura
正明 野村
Hiroyuki Okamoto
弘之 岡本
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP16971082A priority Critical patent/JPS5960746A/ja
Publication of JPS5960746A publication Critical patent/JPS5960746A/ja
Publication of JPH0519213B2 publication Critical patent/JPH0519213B2/ja
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
    • 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
    • G11B11/10502—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 characterised by the transducing operation to be executed
    • G11B11/10504—Recording
    • G11B11/10506—Recording by modulating only the light beam of the transducer
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
JP16971082A 1982-09-30 1982-09-30 光磁気記録媒体 Granted JPS5960746A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16971082A JPS5960746A (ja) 1982-09-30 1982-09-30 光磁気記録媒体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16971082A JPS5960746A (ja) 1982-09-30 1982-09-30 光磁気記録媒体

Publications (2)

Publication Number Publication Date
JPS5960746A true JPS5960746A (ja) 1984-04-06
JPH0519213B2 JPH0519213B2 (enrdf_load_stackoverflow) 1993-03-16

Family

ID=15891429

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16971082A Granted JPS5960746A (ja) 1982-09-30 1982-09-30 光磁気記録媒体

Country Status (1)

Country Link
JP (1) JPS5960746A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60171652A (ja) * 1984-02-16 1985-09-05 Nippon Kogaku Kk <Nikon> 光磁気記録媒体
JPS62128040A (ja) * 1985-11-28 1987-06-10 Sony Corp 光磁気記録媒体
JPS62267941A (ja) * 1986-05-16 1987-11-20 Hitachi Ltd 光磁気記録方法
JPH05205332A (ja) * 1991-10-18 1993-08-13 Internatl Business Mach Corp <Ibm> 光学的データ記憶媒体及びその製造方法
US5239524A (en) * 1985-06-11 1993-08-24 Nikon Corporation Over write capable magnetooptical recording method, and magnetooptical recording apparatus and medium used therefor
EP0838815A3 (en) * 1986-07-08 1998-06-17 Canon Kabushiki Kaisha Apparatus and system for recording on a magnetooptical recording medium

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60171652A (ja) * 1984-02-16 1985-09-05 Nippon Kogaku Kk <Nikon> 光磁気記録媒体
US5239524A (en) * 1985-06-11 1993-08-24 Nikon Corporation Over write capable magnetooptical recording method, and magnetooptical recording apparatus and medium used therefor
JPS62128040A (ja) * 1985-11-28 1987-06-10 Sony Corp 光磁気記録媒体
JPS62267941A (ja) * 1986-05-16 1987-11-20 Hitachi Ltd 光磁気記録方法
EP0838815A3 (en) * 1986-07-08 1998-06-17 Canon Kabushiki Kaisha Apparatus and system for recording on a magnetooptical recording medium
EP0838814A3 (en) * 1986-07-08 1998-06-17 Canon Kabushiki Kaisha Magnetooptical recording medium allowing overwriting with two or more magnetic layers and recording method utilizing the same
JPH05205332A (ja) * 1991-10-18 1993-08-13 Internatl Business Mach Corp <Ibm> 光学的データ記憶媒体及びその製造方法

Also Published As

Publication number Publication date
JPH0519213B2 (enrdf_load_stackoverflow) 1993-03-16

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