JPS5756916A - Manufacture of oxide magnetic thin film magnetic recording medium - Google Patents
Manufacture of oxide magnetic thin film magnetic recording mediumInfo
- Publication number
- JPS5756916A JPS5756916A JP55132022A JP13202280A JPS5756916A JP S5756916 A JPS5756916 A JP S5756916A JP 55132022 A JP55132022 A JP 55132022A JP 13202280 A JP13202280 A JP 13202280A JP S5756916 A JPS5756916 A JP S5756916A
- Authority
- JP
- Japan
- Prior art keywords
- film
- recording medium
- thin film
- manufacture
- magnetic 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.)
- Pending
Links
- 239000010409 thin film Substances 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000010408 film Substances 0.000 abstract 5
- 229910000838 Al alloy Inorganic materials 0.000 abstract 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 abstract 2
- 239000000758 substrate Substances 0.000 abstract 2
- 229910006297 γ-Fe2O3 Inorganic materials 0.000 abstract 2
- 229910020598 Co Fe Inorganic materials 0.000 abstract 1
- 229910002519 Co-Fe Inorganic materials 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000005347 demagnetization Effects 0.000 abstract 1
- 238000000151 deposition Methods 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- 239000002075 main ingredient Substances 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
- G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
- G11B5/658—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing oxygen, e.g. molecular oxygen or magnetic oxide
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compounds Of Iron (AREA)
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Thin Magnetic Films (AREA)
Abstract
PURPOSE:To obtain a magnetic film having excellent coercive force and pressure demagnetization by forming an Fe2O3 film on a substrate containing as a main ingredient aluminum alloy by a reaction deposition method and converting it to gamma-Fe2O3 film by oxidation. CONSTITUTION:Fe-Co-Fe alloy containing more than 2% of Co and more than 1% of Cu is evaporated in O2 atmosphere of 4-5.10<-4>Torr (preferably 4.5X10<-4>Torr), an Fe3O4 film containing Co and Cu is formed on the aluminum alloy substrate, is thermally oxidized to form gamma-Fe2O3 film, and a magnetic recording medium with oxide magnetic thin film having preferably magnetic characteristic can be obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55132022A JPS5756916A (en) | 1980-09-22 | 1980-09-22 | Manufacture of oxide magnetic thin film magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55132022A JPS5756916A (en) | 1980-09-22 | 1980-09-22 | Manufacture of oxide magnetic thin film magnetic recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5756916A true JPS5756916A (en) | 1982-04-05 |
Family
ID=15071677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55132022A Pending JPS5756916A (en) | 1980-09-22 | 1980-09-22 | Manufacture of oxide magnetic thin film magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5756916A (en) |
-
1980
- 1980-09-22 JP JP55132022A patent/JPS5756916A/en active Pending
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