GB1441353A - Magnetic bubble devices and garnet films therefor - Google Patents

Magnetic bubble devices and garnet films therefor

Info

Publication number
GB1441353A
GB1441353A GB4190574A GB4190574A GB1441353A GB 1441353 A GB1441353 A GB 1441353A GB 4190574 A GB4190574 A GB 4190574A GB 4190574 A GB4190574 A GB 4190574A GB 1441353 A GB1441353 A GB 1441353A
Authority
GB
United Kingdom
Prior art keywords
magnetic bubble
grown
substrate
garnet
bubble devices
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.)
Expired
Application number
GB4190574A
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.)
RCA Corp
Original Assignee
RCA Corp
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 RCA Corp filed Critical RCA Corp
Publication of GB1441353A publication Critical patent/GB1441353A/en
Expired 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
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B19/00—Liquid-phase epitaxial-layer growth
    • C30B19/02—Liquid-phase epitaxial-layer growth using molten solvents, e.g. flux
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/10—Inorganic compounds or compositions
    • C30B29/16—Oxides
    • C30B29/22—Complex oxides
    • C30B29/28—Complex oxides with formula A3Me5O12 wherein A is a rare earth metal and Me is Fe, Ga, Sc, Cr, Co or Al, e.g. garnets
    • 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
    • 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
    • G11C19/0866—Detecting magnetic domains

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Thin Magnetic Films (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

1441353 Magnetic bubble device RCA CORPORATION 26 Sept 1974 [4 Oct 1973] 41905/74 Heading C1J [Also in Division H3] A single crystal film of a garnet of formula Bi 3 A 3-x Fe 2 (Fe 3-y M y )O 12 where M=Ga and/or Al, A is one or more of Y and trivalent rate earth metal (At. Nos. 57 to 72) ions, y is 0À6 to 1À2 and x (3-y) is at least 1À2 is grown on a compatible support. In the example a film having the formula is grown on a GdGa garnet substrate by heating the oxides of lead, bismuth and iron (as flux) and the other required oxides and epitaxially depositing the resulting melt on a substrate. The use of the single film grown on a substrate in magnetic bubble devices is described.
GB4190574A 1973-10-04 1974-09-26 Magnetic bubble devices and garnet films therefor Expired GB1441353A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US40339373A 1973-10-04 1973-10-04

Publications (1)

Publication Number Publication Date
GB1441353A true GB1441353A (en) 1976-06-30

Family

ID=23595605

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4190574A Expired GB1441353A (en) 1973-10-04 1974-09-26 Magnetic bubble devices and garnet films therefor

Country Status (5)

Country Link
JP (1) JPS5427958B2 (en)
CA (1) CA1050862A (en)
DE (1) DE2447509A1 (en)
FR (1) FR2246937A1 (en)
GB (1) GB1441353A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0039463A1 (en) * 1980-05-01 1981-11-11 Olympus Optical Co., Ltd. Magnetic garnet film and manufacturing method therefor
GB2130365A (en) * 1982-11-01 1984-05-31 Hitachi Ltd Optical magnetic-field measuring apparatus
EP1162635A1 (en) * 2000-06-06 2001-12-12 Tokin Corporation Material for bismuth substituted garnet thick film and a manufacturing method thereof

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2600959C2 (en) * 1976-01-13 1984-06-28 Philips Patentverwaltung Gmbh, 2000 Hamburg Ferrimagnetic garnet layer for magneto-optical memories and their manufacture
JPS5459915A (en) * 1977-10-20 1979-05-15 Sony Corp Method and apparatus for reading of magnetic recording signal
EP0044109B1 (en) * 1980-07-11 1986-05-28 Koninklijke Philips Electronics N.V. Device for propagating magnetic domains
US4433034A (en) * 1982-04-12 1984-02-21 Allied Corporation Magnetic bubble layer of thulium-containing garnet
US4520460A (en) * 1983-08-15 1985-05-28 Allied Corporation Temperature stable magnetic bubble compositions
FR2572844B1 (en) * 1984-11-02 1986-12-26 Commissariat Energie Atomique MAGNETIC MATERIAL OF THE GRENATE TYPE, MAGNETIC FILM WITH HIGH ROTATION FARADAY COMPRISING SUCH A MATERIAL AND METHOD FOR MANUFACTURING THE SAME

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5020300A (en) * 1973-06-27 1975-03-04

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0039463A1 (en) * 1980-05-01 1981-11-11 Olympus Optical Co., Ltd. Magnetic garnet film and manufacturing method therefor
GB2130365A (en) * 1982-11-01 1984-05-31 Hitachi Ltd Optical magnetic-field measuring apparatus
EP1162635A1 (en) * 2000-06-06 2001-12-12 Tokin Corporation Material for bismuth substituted garnet thick film and a manufacturing method thereof
US6542299B2 (en) 2000-06-06 2003-04-01 Nec Tokin Corporation Material for bismuth substituted garnet thick film and a manufacturing method thereof

Also Published As

Publication number Publication date
JPS5427958B2 (en) 1979-09-13
CA1050862A (en) 1979-03-20
FR2246937A1 (en) 1975-05-02
JPS5064797A (en) 1975-06-02
DE2447509A1 (en) 1975-04-17

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee