ES410292A1 - Magnetic devices - Google Patents

Magnetic devices

Info

Publication number
ES410292A1
ES410292A1 ES410292A ES410292A ES410292A1 ES 410292 A1 ES410292 A1 ES 410292A1 ES 410292 A ES410292 A ES 410292A ES 410292 A ES410292 A ES 410292A ES 410292 A1 ES410292 A1 ES 410292A1
Authority
ES
Spain
Prior art keywords
layer
domains
temperature
domain
range
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
ES410292A
Other languages
Spanish (es)
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of ES410292A1 publication Critical patent/ES410292A1/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
    • 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
    • G11C19/085—Generating magnetic fields therefor, e.g. uniform magnetic field for magnetic domain stabilisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Power Engineering (AREA)
  • Thin Magnetic Films (AREA)
  • Hard Magnetic Materials (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

Magnetic device for domain propagation, which allows certain magnetic materials having useful polarization field ranges in the restricted temperature ranges hitherto to be used to support the activity of the single transition layer domain; the magnetic arrangement comprising means for providing a bias field (26, Figure 1; 51-54, Figure 5); and a layer (11) of material in which single transition layer domains can be moved in response to a propagation arrangement (25), whose domains are stable in the material only at operating temperatures in a first range in the presence of a polarization field (HB) of one polarity to constrain the domains, whose layer has a negative value polarization field range (-HB, figure 4) in a second temperature range outside said first temperature range characterized in that the bias field provided by the means to provide a bias field (26, Figure 1; 51-54, Figure 5) varies as a function of the temperature in said first and second temperature ranges in essentially the same way as the layer of material (11) that supports the activity of the domain transition layer. (Machine-translation by Google Translate, not legally binding)
ES410292A 1971-12-22 1972-12-21 Magnetic devices Expired ES410292A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21084371A 1971-12-22 1971-12-22

Publications (1)

Publication Number Publication Date
ES410292A1 true ES410292A1 (en) 1976-03-16

Family

ID=22784488

Family Applications (1)

Application Number Title Priority Date Filing Date
ES410292A Expired ES410292A1 (en) 1971-12-22 1972-12-21 Magnetic devices

Country Status (12)

Country Link
JP (1) JPS522248B2 (en)
BE (1) BE792989A (en)
BR (1) BR7208841D0 (en)
CA (1) CA945255A (en)
CH (1) CH576210A5 (en)
ES (1) ES410292A1 (en)
FR (1) FR2164821B1 (en)
GB (1) GB1420619A (en)
HK (1) HK45777A (en)
IT (1) IT976111B (en)
NL (1) NL153704B (en)
SE (1) SE394918B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS495326U (en) * 1972-04-19 1974-01-17
US3927397A (en) * 1974-05-02 1975-12-16 Honeywell Inf Systems Bias field apparatus for magnetic domain memory device
JPS5425638B2 (en) * 1974-11-20 1979-08-29

Also Published As

Publication number Publication date
FR2164821A1 (en) 1973-08-03
CH576210A5 (en) 1976-05-31
NL153704B (en) 1977-06-15
DE2262054B2 (en) 1976-06-10
BE792989A (en) 1973-04-16
GB1420619A (en) 1976-01-07
CA945255A (en) 1974-04-09
SE394918B (en) 1977-07-18
IT976111B (en) 1974-08-20
JPS522248B2 (en) 1977-01-20
DE2262054A1 (en) 1973-07-05
FR2164821B1 (en) 1976-08-27
NL7217208A (en) 1973-06-26
BR7208841D0 (en) 1973-09-27
HK45777A (en) 1977-09-16
JPS4871939A (en) 1973-09-28

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19890918