JPS5873746A - Photomagnetic recording medium - Google Patents

Photomagnetic recording medium

Info

Publication number
JPS5873746A
JPS5873746A JP17083781A JP17083781A JPS5873746A JP S5873746 A JPS5873746 A JP S5873746A JP 17083781 A JP17083781 A JP 17083781A JP 17083781 A JP17083781 A JP 17083781A JP S5873746 A JPS5873746 A JP S5873746A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
fe
dy
tb
thin film
recording medium
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.)
Pending
Application number
JP17083781A
Other versions
JPH0123927B2 (en )
Inventor
Osatake Imamura
Yasuyuki Nagao
Chuichi Oota
Fujio Tanaka
Shinsuke Tanaka
Original Assignee
Kokusai Denshin Denwa Co Ltd <Kdd>
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

Links

Abstract

PURPOSE: To efficiently produce optical reproduction output by forming an amorphous thin film of a Tb-Fe-Co or Dy-Fe-Co ternary alloy having an axis of easy magnetization in the direction perpendicular to the film surface and specifying the composition of the constitutent elements.
CONSTITUTION: A photomagnetic recording medium is obtd. by forming an amorphous thin film of a Tb-Fe-Co of Dy-Fe-Co ternary alloy having an axis of easy magnetization in the direction perpendicular to the film surface and 120W200°C Curie point. The thin film is made amorphous by manufacturing a thin film on a substrate kept at a temp. below room temp. by sputtering or other method. It is required to regulate the composition consisting of Tb or Dy, Co and Fe to Tbx(Fe1-yCoy)1-x or Dyx(Fe1-yCoy)1-x (where 0.15≤x≤0.35 and 0<y≤0.5).
COPYRIGHT: (C)1983,JPO&Japio
JP17083781A 1981-10-27 1981-10-27 Expired JPH0123927B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17083781A JPH0123927B2 (en) 1981-10-27 1981-10-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17083781A JPH0123927B2 (en) 1981-10-27 1981-10-27

Publications (2)

Publication Number Publication Date
JPS5873746A true true JPS5873746A (en) 1983-05-04
JPH0123927B2 JPH0123927B2 (en) 1989-05-09

Family

ID=15912243

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17083781A Expired JPH0123927B2 (en) 1981-10-27 1981-10-27

Country Status (1)

Country Link
JP (1) JPH0123927B2 (en)

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58159252A (en) * 1982-03-17 1983-09-21 Canon Inc Magnetooptic recording medium
JPS58196639A (en) * 1982-05-10 1983-11-16 Canon Inc Photothermic and magnetic recording medium
JPS59159510A (en) * 1983-03-01 1984-09-10 Canon Inc Magnetooptical recording medium
JPS59159509A (en) * 1983-03-01 1984-09-10 Canon Inc Magneto optical recording medium
JPS59201247A (en) * 1983-04-28 1984-11-14 Ricoh Co Ltd Photomagnetic recording medium
JPS59217249A (en) * 1983-05-25 1984-12-07 Sony Corp Photomagnetic recording medium
JPS6068607A (en) * 1983-09-14 1985-04-19 Sumitomo Metal Mining Co Ltd Magnetic thin film recording medium
JPS6083305A (en) * 1983-10-14 1985-05-11 Hitachi Ltd Magneto-optic medium
JPS60101744A (en) * 1983-11-07 1985-06-05 Daido Steel Co Ltd Recording medium consisting of thin magnetic film
JPS60177455A (en) * 1984-02-22 1985-09-11 Nippon Kogaku Kk <Nikon> Photomagnetic recording medium for curie point writing
JPS60246606A (en) * 1984-05-22 1985-12-06 Ricoh Co Ltd Amorphous magneto-optical layer
JPS616808A (en) * 1984-06-20 1986-01-13 Oki Electric Ind Co Ltd Photomagnetic recording material
JPS6140012A (en) * 1984-07-31 1986-02-26 Oki Electric Ind Co Ltd Material for photomagnetic recording
DE3536210A1 (en) * 1984-10-11 1986-04-17 Hitachi Ltd Magneto-optical recording medium
JPS61196439A (en) * 1985-02-25 1986-08-30 Toshiba Corp Photomagnetic recording medium and its production
DE3604642A1 (en) * 1985-03-20 1986-10-02 Hitachi Ltd Magneto-optical recording medium
US4803129A (en) * 1985-11-09 1989-02-07 Yamaha Corporation Magnetic recording material
US4838962A (en) * 1985-07-12 1989-06-13 Hitachi, Ltd. Magneto-optical recording medium
EP0351250A2 (en) * 1988-07-13 1990-01-17 Matsushita Electric Industrial Co., Ltd. Magneto-optic recording medium comprising Dy-Fe-Co-based alloys
JPH0296952A (en) * 1988-06-28 1990-04-09 Sharp Corp Optical memory element
JPH0316049A (en) * 1990-04-19 1991-01-24 Kokusai Denshin Denwa Co Ltd <Kdd> Magneto-optical recording medium
US5093174A (en) * 1989-07-04 1992-03-03 Teijin Limited Optical recording medium
US5135819A (en) * 1987-10-30 1992-08-04 Pioneer Electronic Corporation Photomagnetic memory medium having a non-columnar structure
US5192626A (en) * 1988-12-14 1993-03-09 Teijin Limited Optical recording medium
JPH0589555A (en) * 1992-01-28 1993-04-09 Canon Inc Information recording and reproducing method
JPH05174437A (en) * 1991-04-30 1993-07-13 Canon Inc Magneto-optical recording medium
JPH05189822A (en) * 1992-06-19 1993-07-30 Sharp Corp Magneto-optical recording medium
US5473582A (en) * 1993-09-02 1995-12-05 Nikon Corporation Magneto-optical recording method having constant recording sensitivity and magneto-optical recording medium used therefor
US5492773A (en) * 1988-09-13 1996-02-20 Teijin Limited Magneto-optical recording medium
US5512364A (en) * 1986-05-14 1996-04-30 Teijin Limited Magneto-optical recording medium
US5595805A (en) * 1991-07-08 1997-01-21 Sharp Kabushiki Kaisha Magneto-optical recording medium
US5667862A (en) * 1989-03-15 1997-09-16 Sony Corporation Magneto-optical disk
US5705286A (en) * 1992-12-10 1998-01-06 Sharp Kabushiki Kaisha Magneto-optical recording medium
US5786078A (en) * 1990-10-26 1998-07-28 Teijin Limited Magneto-optical recording medium
US6139949A (en) * 1989-02-10 2000-10-31 Mitsubishi Denki Kabushiki Kaisha Magneto optical recording medium

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58159252A (en) * 1982-03-17 1983-09-21 Canon Inc Magnetooptic recording medium
JPH0232690B2 (en) * 1982-05-10 1990-07-23 Canon Kk
JPS58196639A (en) * 1982-05-10 1983-11-16 Canon Inc Photothermic and magnetic recording medium
JPS59159510A (en) * 1983-03-01 1984-09-10 Canon Inc Magnetooptical recording medium
JPS59159509A (en) * 1983-03-01 1984-09-10 Canon Inc Magneto optical recording medium
JPH0570922B2 (en) * 1983-03-01 1993-10-06 Canon Kk
JPS59201247A (en) * 1983-04-28 1984-11-14 Ricoh Co Ltd Photomagnetic recording medium
JPS59217249A (en) * 1983-05-25 1984-12-07 Sony Corp Photomagnetic recording medium
JPS6068607A (en) * 1983-09-14 1985-04-19 Sumitomo Metal Mining Co Ltd Magnetic thin film recording medium
JPS6083305A (en) * 1983-10-14 1985-05-11 Hitachi Ltd Magneto-optic medium
JPS60101744A (en) * 1983-11-07 1985-06-05 Daido Steel Co Ltd Recording medium consisting of thin magnetic film
JPS60177455A (en) * 1984-02-22 1985-09-11 Nippon Kogaku Kk <Nikon> Photomagnetic recording medium for curie point writing
US5204193A (en) * 1984-02-22 1993-04-20 Nippon Kogaku K.K. Recording magnetooptical recording medium
JPS60246606A (en) * 1984-05-22 1985-12-06 Ricoh Co Ltd Amorphous magneto-optical layer
JPH0330964B2 (en) * 1984-06-20 1991-05-01 Oki Electric Ind Co Ltd
JPS616808A (en) * 1984-06-20 1986-01-13 Oki Electric Ind Co Ltd Photomagnetic recording material
JPS6140012A (en) * 1984-07-31 1986-02-26 Oki Electric Ind Co Ltd Material for photomagnetic recording
US4923765A (en) * 1984-10-11 1990-05-08 Hitachi, Ltd. Magneto-optical recording medium
DE3536210A1 (en) * 1984-10-11 1986-04-17 Hitachi Ltd Magneto-optical recording medium
JPS61196439A (en) * 1985-02-25 1986-08-30 Toshiba Corp Photomagnetic recording medium and its production
DE3604642A1 (en) * 1985-03-20 1986-10-02 Hitachi Ltd Magneto-optical recording medium
US4838962A (en) * 1985-07-12 1989-06-13 Hitachi, Ltd. Magneto-optical recording medium
US4803129A (en) * 1985-11-09 1989-02-07 Yamaha Corporation Magnetic recording material
US5512364A (en) * 1986-05-14 1996-04-30 Teijin Limited Magneto-optical recording medium
US5135819A (en) * 1987-10-30 1992-08-04 Pioneer Electronic Corporation Photomagnetic memory medium having a non-columnar structure
JPH0296952A (en) * 1988-06-28 1990-04-09 Sharp Corp Optical memory element
EP0351250A2 (en) * 1988-07-13 1990-01-17 Matsushita Electric Industrial Co., Ltd. Magneto-optic recording medium comprising Dy-Fe-Co-based alloys
US5492773A (en) * 1988-09-13 1996-02-20 Teijin Limited Magneto-optical recording medium
US5192626A (en) * 1988-12-14 1993-03-09 Teijin Limited Optical recording medium
US6139949A (en) * 1989-02-10 2000-10-31 Mitsubishi Denki Kabushiki Kaisha Magneto optical recording medium
US5667862A (en) * 1989-03-15 1997-09-16 Sony Corporation Magneto-optical disk
US5093174A (en) * 1989-07-04 1992-03-03 Teijin Limited Optical recording medium
JPH0465523B2 (en) * 1990-04-19 1992-10-20 Kokusai Denshin Denwa Co Ltd
JPH0316049A (en) * 1990-04-19 1991-01-24 Kokusai Denshin Denwa Co Ltd <Kdd> Magneto-optical recording medium
US5786078A (en) * 1990-10-26 1998-07-28 Teijin Limited Magneto-optical recording medium
JPH05174437A (en) * 1991-04-30 1993-07-13 Canon Inc Magneto-optical recording medium
US5595805A (en) * 1991-07-08 1997-01-21 Sharp Kabushiki Kaisha Magneto-optical recording medium
JPH0589555A (en) * 1992-01-28 1993-04-09 Canon Inc Information recording and reproducing method
JPH05189822A (en) * 1992-06-19 1993-07-30 Sharp Corp Magneto-optical recording medium
US5705286A (en) * 1992-12-10 1998-01-06 Sharp Kabushiki Kaisha Magneto-optical recording medium
US5473582A (en) * 1993-09-02 1995-12-05 Nikon Corporation Magneto-optical recording method having constant recording sensitivity and magneto-optical recording medium used therefor

Also Published As

Publication number Publication date Type
JPH0123927B2 (en) 1989-05-09 grant

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