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On the Optical Properties and Electronic Structure of AgSbTe 2
Author(s) -
Baleva M.
Publication year - 1980
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221010141
Subject(s) - reflectivity , spectral line , crystallite , materials science , binary number , electronic band structure , analytical chemistry (journal) , chemistry , crystallography , optics , condensed matter physics , physics , mathematics , arithmetic , chromatography , astronomy
p‐type polycrystalline samples of AgSbTe 2 are investigated. The reflectance and thermoreflectance spectra are measured and the results obtained are quantitatively interpreted. The absolute maximum in the reflectance spectra is found to be shifted to smaller energies in comparison to that of PbTe and the other lead compounds and A IV B VI tellurides. Two additional structures are observed in the thermoreflectance spectra of AgSbTe 2 in comparison with PbTe. These structures and the shift of the maximum in the reflectance spectra are explained with imbedding the band structure of its binary analog PbTe into the AgSbTe 2 zone.