FR2250725A1 - Magnetisable garnet film on gadolinium-gallium garnet substrate - giving normal magnetic zones, for digital logical manipulations - Google Patents

Magnetisable garnet film on gadolinium-gallium garnet substrate - giving normal magnetic zones, for digital logical manipulations

Info

Publication number
FR2250725A1
FR2250725A1 FR7437032A FR7437032A FR2250725A1 FR 2250725 A1 FR2250725 A1 FR 2250725A1 FR 7437032 A FR7437032 A FR 7437032A FR 7437032 A FR7437032 A FR 7437032A FR 2250725 A1 FR2250725 A1 FR 2250725A1
Authority
FR
France
Prior art keywords
magnetic zones
garnet
magnetisable
gadolinium
digital logical
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Withdrawn
Application number
FR7437032A
Other languages
French (fr)
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.)
Sperry Corp
Original Assignee
Sperry Rand 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 Sperry Rand Corp filed Critical Sperry Rand Corp
Publication of FR2250725A1 publication Critical patent/FR2250725A1/en
Withdrawn legal-status Critical Current

Links

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
    • G11C19/0858—Generating, replicating or annihilating magnetic domains (also comprising different types of magnetic domains, e.g. "Hard Bubbles")
    • 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)

Abstract

Arrangement for forming normal magnetic zones, in which the formation of abnormal hard magnetic zones is prevented, comprises a substrate (I) of non-magnetic material of formula Gd3Ga5O12 and a layer (II) of garnet leading to normal magnetic zones, formed epitaxially on the surface of (I) and having formula YxGdyR3-x-yFezX5-zO12 (in which R is Yb, Tm, Er and Eu; X is Ga and/or Al; 0.9 x 2.0; 0.0 y 1.5; and 4.1 z 4.6. Used for carrying out digital logical manipulations by storing or forming normal cylindrical magnetic zones in thin monocrystalline films of ferro-magnetic materials.
FR7437032A 1973-11-12 1974-11-08 Magnetisable garnet film on gadolinium-gallium garnet substrate - giving normal magnetic zones, for digital logical manipulations Withdrawn FR2250725A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US41518973A 1973-11-12 1973-11-12

Publications (1)

Publication Number Publication Date
FR2250725A1 true FR2250725A1 (en) 1975-06-06

Family

ID=23644720

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7437032A Withdrawn FR2250725A1 (en) 1973-11-12 1974-11-08 Magnetisable garnet film on gadolinium-gallium garnet substrate - giving normal magnetic zones, for digital logical manipulations

Country Status (4)

Country Link
JP (1) JPS5078895A (en)
DE (1) DE2453637A1 (en)
FR (1) FR2250725A1 (en)
NL (1) NL7414736A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0088228A2 (en) * 1982-03-05 1983-09-14 Hitachi, Ltd. Garnet film for ion-implanted magnetic bubble device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0088228A2 (en) * 1982-03-05 1983-09-14 Hitachi, Ltd. Garnet film for ion-implanted magnetic bubble device
EP0088228A3 (en) * 1982-03-05 1986-01-08 Hitachi, Ltd. Garnet film for ion-implanted magnetic bubble device

Also Published As

Publication number Publication date
DE2453637A1 (en) 1975-05-22
NL7414736A (en) 1975-05-14
JPS5078895A (en) 1975-06-26

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Legal Events

Date Code Title Description
ST Notification of lapse