[go: up one dir, main page]

NL7404660A - Displacement of magnetic domain walls at high speeds - using gallium-substd. yttrium iron garnet in pulsed magnetic field - Google Patents

Displacement of magnetic domain walls at high speeds - using gallium-substd. yttrium iron garnet in pulsed magnetic field

Info

Publication number
NL7404660A
NL7404660A NL7404660A NL7404660A NL7404660A NL 7404660 A NL7404660 A NL 7404660A NL 7404660 A NL7404660 A NL 7404660A NL 7404660 A NL7404660 A NL 7404660A NL 7404660 A NL7404660 A NL 7404660A
Authority
NL
Netherlands
Prior art keywords
magnetic field
wall
gallium
film
domain
Prior art date
Application number
NL7404660A
Other languages
Dutch (nl)
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Priority to NL7404660A priority Critical patent/NL7404660A/en
Priority to DE19742418839 priority patent/DE2418839C2/en
Priority to GB1743674A priority patent/GB1450837A/en
Priority to SE7405392A priority patent/SE398935B/en
Priority to FR7414052A priority patent/FR2227597B1/fr
Priority to JP4519874A priority patent/JPS573158B2/ja
Priority to CA199,338A priority patent/CA1035460A/en
Publication of NL7404660A publication Critical patent/NL7404660A/en
Priority to US05/682,982 priority patent/US4079460A/en

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
    • 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)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Thin Magnetic Films (AREA)

Abstract

On a substrate of gadolinium gallium garnet, a film of gallium-substd. yttrium iron garnet is formed, by epitaxial growth from the liq.phase, with a pref. direction of magnetisation perpendicular ot the plane of the film. This element is placed in a gradient magnetic field (max. 6 kOe/cm.) thus creating a domain wall, and an auxiliary static magnetic field Hy of a few hundred Oe applied perpendicular to the domain-wall. using a coil connected to a generator, a pulsed, driving magnetic field Hz is created (build-up time 8 ns, repetition frequency 100 kHz) of max. strength 16 Oe. By means of Hy and Hz, the domain-wall can be displaced from one stable position to another, and with the aid of a polariser, analyser and photomultiplier, a ray of light passing through the film will be detected by the alteration in intensity due to the Faraday effect. The detection signal can be calibrated in terms of the wall displacement using ans oscilloscope and direct observation with a polarising microscope. The high speeds produced are suitable for use in data processing applications.
NL7404660A 1973-04-25 1974-04-05 Displacement of magnetic domain walls at high speeds - using gallium-substd. yttrium iron garnet in pulsed magnetic field NL7404660A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
NL7404660A NL7404660A (en) 1974-04-05 1974-04-05 Displacement of magnetic domain walls at high speeds - using gallium-substd. yttrium iron garnet in pulsed magnetic field
DE19742418839 DE2418839C2 (en) 1973-04-25 1974-04-19 Device for moving magnetic domain walls
GB1743674A GB1450837A (en) 1973-04-25 1974-04-22 Displacing magnetic domains
SE7405392A SE398935B (en) 1973-04-25 1974-04-22 DEVICE WITH MOVABLE MAGNETIC DOMAINS
FR7414052A FR2227597B1 (en) 1973-04-25 1974-04-23
JP4519874A JPS573158B2 (en) 1973-04-25 1974-04-23
CA199,338A CA1035460A (en) 1973-10-26 1974-05-08 Device for operating magnetic domains at maximum speed
US05/682,982 US4079460A (en) 1973-04-25 1976-05-03 Device operating with the displacement of magnetic domain walls

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7404660A NL7404660A (en) 1974-04-05 1974-04-05 Displacement of magnetic domain walls at high speeds - using gallium-substd. yttrium iron garnet in pulsed magnetic field

Publications (1)

Publication Number Publication Date
NL7404660A true NL7404660A (en) 1975-10-07

Family

ID=19821126

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7404660A NL7404660A (en) 1973-04-25 1974-04-05 Displacement of magnetic domain walls at high speeds - using gallium-substd. yttrium iron garnet in pulsed magnetic field

Country Status (1)

Country Link
NL (1) NL7404660A (en)

Similar Documents

Publication Publication Date Title
O'dell An induced magneto-electric effect in yttrium iron garnet
Argyle et al. Experimental study of domain wall response to sinusoidal and pulsed fields
De Leeuw et al. Observation and analysis of magnetic domain wall oscillations in Ga: YIG films
Mee et al. Mobile cylindrical domains in epitaxial Ga: YIG films
NL7404660A (en) Displacement of magnetic domain walls at high speeds - using gallium-substd. yttrium iron garnet in pulsed magnetic field
De Leeuw Influence of an in-plane magnetic field on the domain-wall velocity in Ga: YIG films
NL7305753A (en) Displacement of magnetic domain walls at high speeds - using gallium-substd. yttrium iron garnet in pulsed magnetic field
RU2092832C1 (en) Defect visualizing method, device intended for its realization and magnetic field converter
US3585494A (en) Electron spin echo system having a pulsed preparation magnetic field applied to the sample
Chetkin et al. Maximum velocity of a domain wall in a weak ferromagnet
US4079460A (en) Device operating with the displacement of magnetic domain walls
Breed et al. Fast 1‐and 2‐μm bubbles in films with orthorhombic anisotropy
Liebermann et al. Anomalies in the compressional and shear properties of hematite in the region of the Morin transition
Kendrick et al. Rapid inverting of the polarization of a neutron beam using large amplitude oscillating magnetic fields
O'Dell The dynamics of magnetic bubble domain arrays
Genkin et al. Magnetization of a garnet film through a change in its multidomain structure under circularly polarized light
RU2017182C1 (en) Method of visualization and topography of nonuniform magnetic field
US3824573A (en) Magnetic bubble resonance sensor
US3516747A (en) Field modulation method for observing ultra - high - speed ferromagnetic domain dynamics
Ikuta et al. The dynamic response of magnetic domain walls to applied fields in yttrium orthoferrite, observed by a stroboscopic technique
GB1449847A (en) Magnetic devices
Vien et al. Modulation of light by the anisotropy of the second-order magnetooptical interactions in ferrimagnetic garnets
Kurtzig et al. Correlation of domain wall mobility with gallium concentration in bubble garnets
Kaack et al. Magnetostatic spin wave modes excitation in yttrium–iron–garnet film under various temperatures
US3942165A (en) Device operating with the displacement of magnetic domain wall