FR2338547A1 - Couche en grenat ferrimagnetique, utilisee dans les memoires magnetiques optiques - Google Patents

Couche en grenat ferrimagnetique, utilisee dans les memoires magnetiques optiques

Info

Publication number
FR2338547A1
FR2338547A1 FR7700743A FR7700743A FR2338547A1 FR 2338547 A1 FR2338547 A1 FR 2338547A1 FR 7700743 A FR7700743 A FR 7700743A FR 7700743 A FR7700743 A FR 7700743A FR 2338547 A1 FR2338547 A1 FR 2338547A1
Authority
FR
France
Prior art keywords
optical magnetic
magnetic memories
garnet layer
ferrimagnetic garnet
ferrimagnetic
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.)
Granted
Application number
FR7700743A
Other languages
English (en)
French (fr)
Other versions
FR2338547B1 (ja
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2338547A1 publication Critical patent/FR2338547A1/fr
Application granted granted Critical
Publication of FR2338547B1 publication Critical patent/FR2338547B1/fr
Granted legal-status Critical Current

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
    • H01F10/245—Modifications for enhancing interaction with electromagnetic wave energy
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/16—Layers for recording by changing the magnetic properties, e.g. for Curie-point-writing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
    • G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
    • G11C13/06—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam using magneto-optical elements

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Power Engineering (AREA)
  • Thin Magnetic Films (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
FR7700743A 1976-01-13 1977-01-12 Couche en grenat ferrimagnetique, utilisee dans les memoires magnetiques optiques Granted FR2338547A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762600959 DE2600959C2 (de) 1976-01-13 1976-01-13 Ferrimagnetische Granatschicht für magnetooptische Speicher und deren Herstellung

Publications (2)

Publication Number Publication Date
FR2338547A1 true FR2338547A1 (fr) 1977-08-12
FR2338547B1 FR2338547B1 (ja) 1983-11-18

Family

ID=5967331

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7700743A Granted FR2338547A1 (fr) 1976-01-13 1977-01-12 Couche en grenat ferrimagnetique, utilisee dans les memoires magnetiques optiques

Country Status (4)

Country Link
JP (1) JPS5853497B2 (ja)
DE (1) DE2600959C2 (ja)
FR (1) FR2338547A1 (ja)
GB (1) GB1510444A (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984002602A1 (en) * 1982-12-23 1984-07-05 Sony Corp Thermomagnetic optical recording method
US4625390A (en) * 1983-03-16 1986-12-02 Litton Systems, Inc. Two-step method of manufacturing compressed bismuth-containing garnet films of replicable low anisotropy field value

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3447851A (en) * 1965-11-08 1969-06-03 Bell Telephone Labor Inc Ferrimagnetic light transmission garnets
FR2204817A1 (ja) * 1972-10-27 1974-05-24 Philips Nv
US3886533A (en) * 1973-07-20 1975-05-27 Bell Telephone Labor Inc Magnetic devices utilizing garnet epitaxial material

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1050862A (en) * 1973-10-04 1979-03-20 Richard E. Novak Magnetic bubble devices and garnet films therefor
US3949386A (en) * 1973-11-12 1976-04-06 International Business Machines Corporation Bubble domain devices using garnet materials with single rare earth ion on all dodecahedral sites

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3447851A (en) * 1965-11-08 1969-06-03 Bell Telephone Labor Inc Ferrimagnetic light transmission garnets
FR2204817A1 (ja) * 1972-10-27 1974-05-24 Philips Nv
US3886533A (en) * 1973-07-20 1975-05-27 Bell Telephone Labor Inc Magnetic devices utilizing garnet epitaxial material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/76 *

Also Published As

Publication number Publication date
JPS5286197A (en) 1977-07-18
GB1510444A (en) 1978-05-10
JPS5853497B2 (ja) 1983-11-29
DE2600959C2 (de) 1984-06-28
FR2338547B1 (ja) 1983-11-18
DE2600959A1 (de) 1977-07-14

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Legal Events

Date Code Title Description
ST Notification of lapse