JPS627611B2 - - Google Patents
Info
- Publication number
- JPS627611B2 JPS627611B2 JP2041880A JP2041880A JPS627611B2 JP S627611 B2 JPS627611 B2 JP S627611B2 JP 2041880 A JP2041880 A JP 2041880A JP 2041880 A JP2041880 A JP 2041880A JP S627611 B2 JPS627611 B2 JP S627611B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- thin film
- light
- medium
- information
- 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
Links
- 239000010409 thin film Substances 0.000 claims description 41
- 239000000758 substrate Substances 0.000 claims description 24
- 239000010408 film Substances 0.000 claims description 22
- 238000003860 storage Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 description 9
- 230000005415 magnetization Effects 0.000 description 6
- 239000006247 magnetic powder Substances 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229940090961 chromium dioxide Drugs 0.000 description 4
- IAQWMWUKBQPOIY-UHFFFAOYSA-N chromium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Cr+4] IAQWMWUKBQPOIY-UHFFFAOYSA-N 0.000 description 4
- AYTAKQFHWFYBMA-UHFFFAOYSA-N chromium(IV) oxide Inorganic materials O=[Cr]=O AYTAKQFHWFYBMA-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229920002457 flexible plastic Polymers 0.000 description 4
- 230000005374 Kerr effect Effects 0.000 description 3
- 239000002223 garnet Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- KYAZRUPZRJALEP-UHFFFAOYSA-N bismuth manganese Chemical compound [Mn].[Bi] KYAZRUPZRJALEP-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- ZPDRQAVGXHVGTB-UHFFFAOYSA-N gallium;gadolinium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Ga+3].[Gd+3] ZPDRQAVGXHVGTB-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical group 0.000 description 1
- 238000002310 reflectometry 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
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2041880A JPS56117345A (en) | 1980-02-22 | 1980-02-22 | Optical recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2041880A JPS56117345A (en) | 1980-02-22 | 1980-02-22 | Optical recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56117345A JPS56117345A (en) | 1981-09-14 |
| JPS627611B2 true JPS627611B2 (ru) | 1987-02-18 |
Family
ID=12026479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2041880A Granted JPS56117345A (en) | 1980-02-22 | 1980-02-22 | Optical recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56117345A (ru) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58153244A (ja) * | 1982-03-05 | 1983-09-12 | Matsushita Electric Ind Co Ltd | 光磁気記録媒体 |
| DE3381422D1 (de) * | 1982-12-23 | 1990-05-10 | Sony Corp | Thermomagnetisches optisches aufzeichnungs-/wiedergabeverfahren. |
| JPH03198242A (ja) * | 1990-05-30 | 1991-08-29 | Sharp Corp | 磁気光学記録再生装置 |
-
1980
- 1980-02-22 JP JP2041880A patent/JPS56117345A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56117345A (en) | 1981-09-14 |
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