Abstract
Measurements and analysis of spectroscopic reflection ellipsometry and magneto-optical polar and longitudinal complex Kerr effect are reported on a natural (111) fece of a high quality NiFe2O4 single-crystal. The experimental reflection data is expressed in terms of the permittivity tensor. This information is employed in modeling experimental polar Kerr spectra of a NiFe2O4 film and a satisfactory agreement has been achieved. These results demonstrate the importance of the spectroscope magneto-optic reflection ellipsometry in the diagnostics of magnetic oxide films with thicknesses in the range 101 to 102 nm.
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