The Faraday Effect in CoFe2O4 Spinel Ferrite in the IR Range

Resumo

The spectral, temperature, and field dependences of the Faraday effect in the IR spectral range have been studied in single crystals of the CoFe₂O₄ ferrimagnetic spinel. It is established that the magneto-optical quality factor of CoFe₂O₄ spinel varies from –60 to +20°/dB in a wavelength range of 1.5–10 μm and weakly depends on the temperature in a 200–300 K interval. Physical mechanisms are proposed that may be responsible for the Faraday effect.