JPH0414426B2 - - Google Patents
Info
- Publication number
- JPH0414426B2 JPH0414426B2 JP24412783A JP24412783A JPH0414426B2 JP H0414426 B2 JPH0414426 B2 JP H0414426B2 JP 24412783 A JP24412783 A JP 24412783A JP 24412783 A JP24412783 A JP 24412783A JP H0414426 B2 JPH0414426 B2 JP H0414426B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- film
- soft magnetic
- recording medium
- domains
- 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
- 230000005381 magnetic domain Effects 0.000 claims description 79
- 230000005415 magnetization Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 12
- 239000002223 garnet Substances 0.000 description 23
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 4
- 239000000758 substrate Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002542 deteriorative effect Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 229940090961 chromium dioxide Drugs 0.000 description 1
- IAQWMWUKBQPOIY-UHFFFAOYSA-N chromium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Cr+4] IAQWMWUKBQPOIY-UHFFFAOYSA-N 0.000 description 1
- AYTAKQFHWFYBMA-UHFFFAOYSA-N chromium(IV) oxide Inorganic materials O=[Cr]=O AYTAKQFHWFYBMA-UHFFFAOYSA-N 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000013518 transcription Methods 0.000 description 1
- 230000035897 transcription Effects 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 229910052727 yttrium Inorganic materials 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
- G11B11/10532—Heads
- G11B11/10541—Heads for reproducing
- G11B11/10543—Heads for reproducing using optical beam of radiation
- G11B11/10547—Heads for reproducing using optical beam of radiation interacting with the magnetisation of an intermediate transfer element, e.g. magnetic film, included in the head
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24412783A JPS60136930A (ja) | 1983-12-26 | 1983-12-26 | 光磁気読出し膜およびその読出し方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24412783A JPS60136930A (ja) | 1983-12-26 | 1983-12-26 | 光磁気読出し膜およびその読出し方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60136930A JPS60136930A (ja) | 1985-07-20 |
| JPH0414426B2 true JPH0414426B2 (enrdf_load_stackoverflow) | 1992-03-12 |
Family
ID=17114161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24412783A Granted JPS60136930A (ja) | 1983-12-26 | 1983-12-26 | 光磁気読出し膜およびその読出し方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60136930A (enrdf_load_stackoverflow) |
-
1983
- 1983-12-26 JP JP24412783A patent/JPS60136930A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60136930A (ja) | 1985-07-20 |
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