Magneto‐optical effects of aluminum and ferrous substituted cobalt ferrite

Autor:	W. L. Peeters, J. W. D. Martens
Rok vydání:	1982
Předmět:	Kerr effect Materials science Field (physics) Analytical chemistry General Physics and Astronomy chemistry.chemical_element Spectral line Crystal symbols.namesake Nuclear magnetic resonance chemistry Octahedron Aluminium Faraday effect symbols Crystallite
Zdroj:	Journal of Applied Physics. 53:8178-8180
ISSN:	1089-7550 0021-8979
DOI:	10.1063/1.330284
Popis:	The polar Kerr rotation of polycrystalline CoFe2−xAlxO4 (0≤x≤0.8) and CoxFe3−xO4 (0≤x≤1.0) was measured in the energy region 0.6 eV≤E≤5.5 eV. The Faraday rotation of thin polycrystalline films of CoFe2−xAlx O4 (x=0.1 and 0.6) was measured in the energy region of 0.6 eV≤E≤2.8 eV. The spectra in the energy region below 3 eV are discussed in terms of crystal field transitions of Co2+ (Td). Furthermore a new intense transition is observed around 2 eV. This transition is assigned to a charge transfer of Co2+ to Fe3+, both on the octahedral site.
Databáze:	OpenAIRE
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