Magnetic and magnetooptical properties of polycrystalline films of cobalt ferrite
The influence of cation composition on the magnitude of perpendicular anisotropy and the shape of the hysteresis loop of polycrystalline films of Co/sub x/Fe/sub 3-x/O/sub 4/ has been studied. Dispersion dependences of the Faraday effect and the coefficients of optical absorption and of the magnetooptical figure of merit are also investigated. The films were produced by vacuum evaporation of a mixture of Co and Fe with a specified component ratio on to substrates of cover glass and fused silica, followed by annealing of the deposited condensate in an atmosphere with controlled oxygen content. The films were polycrystals having a spinel structure, with crystallite size 400-500 /angstrom/. The thickness of the films was /approx/ 2000 /angstrom/. The cation composition of the films was determined by means of x-ray fluorescence analysis. The samples produced exhibited perpendicular magnetic anisotropy.
- Research Organization:
- Institute of Physics, Siberia (USSR)
- OSTI ID:
- 5973221
- Journal Information:
- Inorg. Mater. (Engl. Transl.); (United States), Vol. 24:7; Other Information: Translated from Izv. Akad. Nauk. SSSR, Neorg. Mater.; 24: No. 7, 1184-1187 (Jul 1988)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
COBALT COMPOUNDS
MAGNETIC PROPERTIES
OPTICAL PROPERTIES
FERRITES
ABSORPTIVITY
ANISOTROPY
ANNEALING
CATIONS
ELECTRON MICROSCOPY
FARADAY EFFECT
GLASS
HYSTERESIS
MAGNETO-OPTICAL EFFECTS
OPTICAL DISPERSION
POLYCRYSTALS
SILICA
SUBSTRATES
THIN FILMS
VACUUM COATING
CHALCOGENIDES
CHARGED PARTICLES
CRYSTALS
DEPOSITION
FERRIMAGNETIC MATERIALS
FILMS
HEAT TREATMENTS
IONS
IRON COMPOUNDS
MAGNETIC MATERIALS
MATERIALS
MICROSCOPY
MINERALS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SILICON COMPOUNDS
SILICON OXIDES
SURFACE COATING
TRANSITION ELEMENT COMPOUNDS
360204* - Ceramics
Cermets
& Refractories- Physical Properties
360202 - Ceramics
Cermets
& Refractories- Structure & Phase Studies