JPS5715279A - Manufacture of contiguous disk bubble element - Google Patents
Manufacture of contiguous disk bubble elementInfo
- Publication number
- JPS5715279A JPS5715279A JP8742080A JP8742080A JPS5715279A JP S5715279 A JPS5715279 A JP S5715279A JP 8742080 A JP8742080 A JP 8742080A JP 8742080 A JP8742080 A JP 8742080A JP S5715279 A JPS5715279 A JP S5715279A
- Authority
- JP
- Japan
- Prior art keywords
- film
- surface layer
- layer
- transfer pattern
- uniaxial
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F10/00—Thin magnetic films, e.g. of one-domain structure
- H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
- H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
- H01F10/18—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being compounds
- H01F10/20—Ferrites
- H01F10/24—Garnets
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Power Engineering (AREA)
- Thin Magnetic Films (AREA)
Abstract
PURPOSE:To form an element suitable to minute bubbles in a single-layer film system by reducing the uniaxial anisotropic energy of a surface layer of a single-layer magnetic garnet film through thermally treating the surface layer at a specific temperature before a transfer pattern is formed. CONSTITUTION:Before the formation of a transfer pattern, the surface layer of a single-layer mangetic garnet film is thermally treated at a temperature higher than 750 deg.C to reduce the uniaxial magnetic anisotropic energy of the surface layer. On a Gd3Ga5O12 substrate, for example, a magnetic garnet film (composition; Sm0.75 Lu1.75Ca0.5Fe4.5Ge0.5O12) having 1.47mum film thickness is formed by liquid- phaseepitaxial growth at 909 deg.C growing temperature to obtain a bubble holding film, thereafter, is thermally treated in oxygen atmosphere at 850 deg.C for 7min. On this film, a contiguous disk pattern of 4mum bit cycle consisting of 1,000Angstrom SiO2, 100Angstrom Cr and 4,000Angstrom Au is formed and then He<+> ion implantation is executed under 100KeV acceleration voltage and 3X10<15>/cm<2> dose amount conditions to obtain a bubble element.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8742080A JPS5715279A (en) | 1980-06-27 | 1980-06-27 | Manufacture of contiguous disk bubble element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8742080A JPS5715279A (en) | 1980-06-27 | 1980-06-27 | Manufacture of contiguous disk bubble element |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5715279A true JPS5715279A (en) | 1982-01-26 |
Family
ID=13914379
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8742080A Pending JPS5715279A (en) | 1980-06-27 | 1980-06-27 | Manufacture of contiguous disk bubble element |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5715279A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58142510A (en) * | 1982-02-19 | 1983-08-24 | Hitachi Ltd | Manufacture of magnetic bubble element |
JPS62103894U (en) * | 1985-12-17 | 1987-07-02 | ||
JPS63107692A (en) * | 1986-10-21 | 1988-05-12 | 鉄建建設株式会社 | Speed measuring device for propulsion jack in shielding machine |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5512790A (en) * | 1978-07-14 | 1980-01-29 | Nec Corp | Producing method of cylindrical magnetic domain element |
JPS5518095A (en) * | 1978-07-27 | 1980-02-07 | Nec Corp | Cilindrical magnetic domain element |
JPS5651817A (en) * | 1979-10-05 | 1981-05-09 | Nec Corp | Preparation of magnetic bubble element |
-
1980
- 1980-06-27 JP JP8742080A patent/JPS5715279A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5512790A (en) * | 1978-07-14 | 1980-01-29 | Nec Corp | Producing method of cylindrical magnetic domain element |
JPS5518095A (en) * | 1978-07-27 | 1980-02-07 | Nec Corp | Cilindrical magnetic domain element |
JPS5651817A (en) * | 1979-10-05 | 1981-05-09 | Nec Corp | Preparation of magnetic bubble element |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58142510A (en) * | 1982-02-19 | 1983-08-24 | Hitachi Ltd | Manufacture of magnetic bubble element |
JPH0572090B2 (en) * | 1982-02-19 | 1993-10-08 | Hitachi Ltd | |
JPS62103894U (en) * | 1985-12-17 | 1987-07-02 | ||
JPS63107692A (en) * | 1986-10-21 | 1988-05-12 | 鉄建建設株式会社 | Speed measuring device for propulsion jack in shielding machine |
JPH0426679B2 (en) * | 1986-10-21 | 1992-05-07 | Tekken Constr Co |
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