Physics of the Solid State
Optical conductivity of intermetallic compounds YSn3 and GdSn3
Knyazev Yu. V.
1, Kuz'min Yu. I.
1
1M.N. Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia
Email: knyazev@imp.uran.ru, yukuzmin@imp.uran.ru
The optical properties of binary cubic compounds YSn3 and GdSn3 were investigated by ellipsometric technique. The frequency dependences of the dielectric functions are determined in the energy range 0.083-5.64 eV. The features of the dispersion of optical conductivity in the intervals of intra- and interband light absorption are analyzed in detail. The nature of quantum light absorption in the studied materials is discussed on the basis of a comparative analysis of experimental and theoretical optical conductivity spectra. Plasma and relaxation frequencies of electrons are determined. Keywords: intermetallic compounds, optical properties, dielectric functions, electronic structure.
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