JPH0350342B2 - - Google Patents
Info
- Publication number
- JPH0350342B2 JPH0350342B2 JP59109618A JP10961884A JPH0350342B2 JP H0350342 B2 JPH0350342 B2 JP H0350342B2 JP 59109618 A JP59109618 A JP 59109618A JP 10961884 A JP10961884 A JP 10961884A JP H0350342 B2 JPH0350342 B2 JP H0350342B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- magneto
- recording medium
- magnetic recording
- optical recording
- 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
Links
- 239000010408 film Substances 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 12
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 6
- 239000010409 thin film Substances 0.000 claims description 5
- 229910052723 transition metal Inorganic materials 0.000 claims description 5
- 230000005415 magnetization Effects 0.000 claims description 4
- 239000003989 dielectric material Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 38
- 238000000034 method Methods 0.000 description 15
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 14
- 239000011521 glass Substances 0.000 description 8
- 238000005566 electron beam evaporation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000011241 protective layer Substances 0.000 description 5
- 239000012790 adhesive layer Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 229910001111 Fine metal Inorganic materials 0.000 description 1
- 230000005374 Kerr effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000007733 ion plating Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- 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
-
- 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
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10961884A JPS60254433A (ja) | 1984-05-31 | 1984-05-31 | 磁気光学記録媒体 |
| US07/246,970 US4999260A (en) | 1984-05-31 | 1988-09-21 | Magneto-optical recording medium comprising a rare-earth-transition metal dispersed in a dielectric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10961884A JPS60254433A (ja) | 1984-05-31 | 1984-05-31 | 磁気光学記録媒体 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60254433A JPS60254433A (ja) | 1985-12-16 |
| JPH0350342B2 true JPH0350342B2 (hu) | 1991-08-01 |
Family
ID=14514855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10961884A Granted JPS60254433A (ja) | 1984-05-31 | 1984-05-31 | 磁気光学記録媒体 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60254433A (hu) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6371961A (ja) * | 1986-09-16 | 1988-04-01 | Toshiba Corp | 光磁気記録媒体 |
| JPH01211253A (ja) * | 1988-02-17 | 1989-08-24 | Victor Co Of Japan Ltd | 光学的情報信号記録媒体 |
| JPH04121841A (ja) * | 1990-09-11 | 1992-04-22 | Matsushita Electric Ind Co Ltd | 光記録媒体と光記録媒体用反射膜 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57208648A (en) * | 1981-06-12 | 1982-12-21 | Rca Corp | Recording medium |
-
1984
- 1984-05-31 JP JP10961884A patent/JPS60254433A/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57208648A (en) * | 1981-06-12 | 1982-12-21 | Rca Corp | Recording medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60254433A (ja) | 1985-12-16 |
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