GB1367121A - Method for producing bubble domains in magnetic film-substrate struc tures - Google Patents

Method for producing bubble domains in magnetic film-substrate struc tures

Info

Publication number
GB1367121A
GB1367121A GB5945371A GB5945371A GB1367121A GB 1367121 A GB1367121 A GB 1367121A GB 5945371 A GB5945371 A GB 5945371A GB 5945371 A GB5945371 A GB 5945371A GB 1367121 A GB1367121 A GB 1367121A
Authority
GB
United Kingdom
Prior art keywords
substrate
film
magnetic film
dec
rare earth
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
GB5945371A
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.)
Boeing North American Inc
Original Assignee
Rockwell International 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 Rockwell International Corp filed Critical Rockwell International Corp
Publication of GB1367121A publication Critical patent/GB1367121A/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
    • H01F41/24—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates from liquids
    • H01F41/28—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates from liquids by liquid phase epitaxy

Abstract

1367121 Rare earth iron garnet films ROCKWELL INTERNATIONAL CORP 21 Dec 1971 [28 Dec 1970] 59453/71 Headings C1A and C1J [Also in Division H3] A method of producing a bubble domaincontaining, film-substrate structure comprises the steps of depositing on a substrate a magnetic film of a single crystal material having a negative magneto-striction constant along a crystallographic axis-oriented approximately normal to the plane of the film, in which the magnetic film has a lattice constant which exceeds the lattice constant of the substrate by an amount at least equal to 0À035 Š at room temperature, and in which the coefficient of thermal expansion of the substrate is the same or lower than that of the film by an amount not more than 1 x 10<-6>/‹ C. The film may be deposited by chemical vapour deposition techniques. The film and substrate may both be garnets, e.g. Gd3Fe5O12 on Sm3Ga5O12 and Y3Ga1À2Fe3À8O12 on Y3Al5O12, Tb3Ga5O12 and Dy3Ga5O12, the orientations being (111) or (110). Other simple rare earth iron garnets are listed.
GB5945371A 1970-12-28 1971-12-21 Method for producing bubble domains in magnetic film-substrate struc tures Expired GB1367121A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10178770A 1970-12-28 1970-12-28

Publications (1)

Publication Number Publication Date
GB1367121A true GB1367121A (en) 1974-09-18

Family

ID=22286409

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5945371A Expired GB1367121A (en) 1970-12-28 1971-12-21 Method for producing bubble domains in magnetic film-substrate struc tures

Country Status (6)

Country Link
US (1) US3788896A (en)
CA (1) CA921775A (en)
DE (1) DE2165296C3 (en)
FR (1) FR2121046A5 (en)
GB (1) GB1367121A (en)
NL (1) NL7115050A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127398A (en) * 1982-09-21 1984-04-11 Philips Nv Disc resonators

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3946124A (en) * 1970-03-04 1976-03-23 Rockwell International Corporation Method of forming a composite structure
NL7606482A (en) * 1976-06-16 1977-12-20 Philips Nv EenKRISTZL OF CALCIUM-GALLIUM-GERMANIUM GRAINATE, AND SUBSTRATE MANUFACTURED FROM SUCH EenKRISTZL WITH AN EPITAXIALLY GROWN BELDO-MEINFILM.
NL7607959A (en) * 1976-07-19 1978-01-23 Philips Nv MAGNETIC BUBBLE DOMAIN MATERIAL.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127398A (en) * 1982-09-21 1984-04-11 Philips Nv Disc resonators

Also Published As

Publication number Publication date
CA921775A (en) 1973-02-27
FR2121046A5 (en) 1972-08-18
NL7115050A (en) 1972-06-30
DE2165296A1 (en) 1972-07-13
DE2165296B2 (en) 1974-01-31
DE2165296C3 (en) 1974-09-26
US3788896A (en) 1974-01-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee