Magneto-optical Polar and Longitudinal Kerr Spectra of NiFe2O4 Single-crystals

Authors :: Marcel Guyot
J. Grondilova
R. Krishnan
Jan Mistrik
Stefan Visnovsky
Nicolas Keller
Source :: Journal of the Magnetics Society of Japan. 25:267-270
Publication Year :: 2001
Publisher :: The Magnetics Society of Japan, 2001.
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.