Far-infrared optical properties of ZnS highly doped with Fe

Far-infrared reflectivity measurements have been made on ZnS crystals containing approx. 10 at. % Fe, at liquid nitrogen temperature and room temperature, in the frequency range 100–450 cm −1. Kramers-Krönig analysis of the spectra and reflectivity fitting by a combined harmonic-anharmonic model has...

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Bibliographic Details
Published in:Infrared physics 1991, Vol.31 (4), p.387-393
Main Authors: Blagojević, V., Gledhill, G.A., Hamilton, A., Upadhyay, S.B., Nikolić, P.M., Pavlović, M.B., Raković, D.I.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Infrared and raman spectra and scattering
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Physics
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Summary:Far-infrared reflectivity measurements have been made on ZnS crystals containing approx. 10 at. % Fe, at liquid nitrogen temperature and room temperature, in the frequency range 100–450 cm −1. Kramers-Krönig analysis of the spectra and reflectivity fitting by a combined harmonic-anharmonic model has determined the IR active transverse and longitudinal optical modes, their damping factors, the additional parameters due to anharmonic effects and the real and imaginary parts of the complex dielectric function.
ISSN:0020-0891
DOI:10.1016/0020-0891(91)90013-6