DE2453251A1 - Magnetschicht fuer einzelwanddomaenen - Google Patents
Magnetschicht fuer einzelwanddomaenenInfo
- Publication number
- DE2453251A1 DE2453251A1 DE19742453251 DE2453251A DE2453251A1 DE 2453251 A1 DE2453251 A1 DE 2453251A1 DE 19742453251 DE19742453251 DE 19742453251 DE 2453251 A DE2453251 A DE 2453251A DE 2453251 A1 DE2453251 A1 DE 2453251A1
- Authority
- DE
- Germany
- Prior art keywords
- magnetic
- magnetic layer
- anisotropy
- lattice
- layer according
- 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.)
- Withdrawn
Links
- 230000005291 magnetic effect Effects 0.000 title claims description 107
- 239000002223 garnet Substances 0.000 claims description 60
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 40
- 229910052742 iron Inorganic materials 0.000 claims description 38
- 239000000758 substrate Substances 0.000 claims description 37
- 238000000034 method Methods 0.000 claims description 17
- 239000000155 melt Substances 0.000 claims description 11
- 229910052693 Europium Inorganic materials 0.000 claims description 8
- 229910052796 boron Inorganic materials 0.000 claims description 7
- 239000007791 liquid phase Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 2
- 230000005293 ferrimagnetic effect Effects 0.000 claims 1
- 239000000344 soap Substances 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 89
- 239000000463 material Substances 0.000 description 36
- 150000002500 ions Chemical class 0.000 description 31
- 150000002910 rare earth metals Chemical class 0.000 description 19
- -1 rare earth ions Chemical class 0.000 description 17
- 230000006870 function Effects 0.000 description 13
- 230000008569 process Effects 0.000 description 10
- 229910052772 Samarium Inorganic materials 0.000 description 7
- 150000001768 cations Chemical class 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000006467 substitution reaction Methods 0.000 description 6
- 230000005381 magnetic domain Effects 0.000 description 5
- 230000005415 magnetization Effects 0.000 description 5
- 229910052779 Neodymium Inorganic materials 0.000 description 4
- 229910052777 Praseodymium Inorganic materials 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- 229910052733 gallium Inorganic materials 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 229910000889 permalloy Inorganic materials 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000005090 crystal field Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 238000000407 epitaxy Methods 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000004018 waxing Methods 0.000 description 3
- 229910052692 Dysprosium Inorganic materials 0.000 description 2
- 229910052688 Gadolinium Inorganic materials 0.000 description 2
- 229910052771 Terbium Inorganic materials 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052810 boron oxide Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229910052741 iridium Inorganic materials 0.000 description 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 125000004430 oxygen atom Chemical group O* 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000012047 saturated solution Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910052689 Holmium Inorganic materials 0.000 description 1
- HEFNNWSXXWATRW-UHFFFAOYSA-N Ibuprofen Chemical compound CC(C)CC1=CC=C(C(C)C(O)=O)C=C1 HEFNNWSXXWATRW-UHFFFAOYSA-N 0.000 description 1
- 229910052765 Lutetium Inorganic materials 0.000 description 1
- 229910052775 Thulium Inorganic materials 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- 230000003416 augmentation Effects 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 230000002068 genetic effect Effects 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229930002839 ionone Natural products 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004943 liquid phase epitaxy Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 230000005428 wave function Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
- G11C19/02—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements
- G11C19/08—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements using thin films in plane structure
-
- 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)
- Crystals, And After-Treatments Of Crystals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/415,456 US3949386A (en) | 1973-11-12 | 1973-11-12 | Bubble domain devices using garnet materials with single rare earth ion on all dodecahedral sites |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2453251A1 true DE2453251A1 (de) | 1975-05-15 |
Family
ID=23645750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19742453251 Withdrawn DE2453251A1 (de) | 1973-11-12 | 1974-11-09 | Magnetschicht fuer einzelwanddomaenen |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3949386A (enExample) |
| JP (1) | JPS5423437B2 (enExample) |
| CA (1) | CA1035036A (enExample) |
| DE (1) | DE2453251A1 (enExample) |
| FR (1) | FR2251074B1 (enExample) |
| GB (1) | GB1482531A (enExample) |
| IT (1) | IT1022439B (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2637380A1 (de) * | 1975-08-25 | 1977-03-03 | Western Electric Co | Magnetblasenvorrichtungen |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2600959C2 (de) * | 1976-01-13 | 1984-06-28 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Ferrimagnetische Granatschicht für magnetooptische Speicher und deren Herstellung |
| US4473619A (en) * | 1983-01-24 | 1984-09-25 | Porco Daniel A | Magnetic audio recording tape and method of preparation thereof |
| FR2572844B1 (fr) * | 1984-11-02 | 1986-12-26 | Commissariat Energie Atomique | Materiau magnetique du type grenat, film magnetique a forte rotation faraday comportant un tel materiau et son procede de fabrication |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3646529A (en) * | 1970-04-20 | 1972-02-29 | Bell Telephone Labor Inc | Magnetic devices utilizing garnet compositions |
-
1973
- 1973-11-12 US US05/415,456 patent/US3949386A/en not_active Expired - Lifetime
-
1974
- 1974-09-16 FR FR7432944A patent/FR2251074B1/fr not_active Expired
- 1974-09-30 IT IT27866/74A patent/IT1022439B/it active
- 1974-10-04 JP JP11398374A patent/JPS5423437B2/ja not_active Expired
- 1974-10-17 GB GB44973/74A patent/GB1482531A/en not_active Expired
- 1974-10-25 CA CA212,326A patent/CA1035036A/en not_active Expired
- 1974-11-09 DE DE19742453251 patent/DE2453251A1/de not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2637380A1 (de) * | 1975-08-25 | 1977-03-03 | Western Electric Co | Magnetblasenvorrichtungen |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1482531A (en) | 1977-08-10 |
| IT1022439B (it) | 1978-03-20 |
| FR2251074A1 (enExample) | 1975-06-06 |
| JPS5078894A (enExample) | 1975-06-26 |
| FR2251074B1 (enExample) | 1981-02-06 |
| CA1035036A (en) | 1978-07-18 |
| JPS5423437B2 (enExample) | 1979-08-14 |
| US3949386A (en) | 1976-04-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OD | Request for examination | ||
| 8130 | Withdrawal |