KR870005358A - Tb-Gd-Fe 3원계 비정질 수직광열 자기기록 매체 - Google Patents
Tb-Gd-Fe 3원계 비정질 수직광열 자기기록 매체 Download PDFInfo
- Publication number
- KR870005358A KR870005358A KR1019850008570A KR850008570A KR870005358A KR 870005358 A KR870005358 A KR 870005358A KR 1019850008570 A KR1019850008570 A KR 1019850008570A KR 850008570 A KR850008570 A KR 850008570A KR 870005358 A KR870005358 A KR 870005358A
- Authority
- KR
- South Korea
- Prior art keywords
- magnetic recording
- recording media
- ternary amorphous
- photothermal magnetic
- vertical
- Prior art date
Links
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
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Thin Magnetic Films (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 비정질 광열자기디스크의 구성도.
제2도는 본 발명의 S/N 비의 평가곡선도.
제3도는 본 발명의 고주파 범위에서 기록주파수에 따른 S/N 비율도.
Claims (1)
- Tb-Gd-Fe 3원계 비정질 합금에서 Tb-Gd가 0.22-0.32At%의 조성을 이루도록 함을 특징으로 하는 Tb-Gd-Fe 3원계 비정질 수직광열 자기기록 매체.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019850008570A KR890004755B1 (ko) | 1985-11-16 | 1985-11-16 | Tb-Gd-Fe 3원계비정질 수직광열자기기록매체 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019850008570A KR890004755B1 (ko) | 1985-11-16 | 1985-11-16 | Tb-Gd-Fe 3원계비정질 수직광열자기기록매체 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR870005358A true KR870005358A (ko) | 1987-06-08 |
| KR890004755B1 KR890004755B1 (ko) | 1989-11-25 |
Family
ID=19243684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019850008570A KR890004755B1 (ko) | 1985-11-16 | 1985-11-16 | Tb-Gd-Fe 3원계비정질 수직광열자기기록매체 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR890004755B1 (ko) |
-
1985
- 1985-11-16 KR KR1019850008570A patent/KR890004755B1/ko not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR890004755B1 (ko) | 1989-11-25 |
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| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| G160 | Decision to publish patent application | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20021031 Year of fee payment: 14 |
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| LAPS | Lapse due to unpaid annual fee |