The valence zone structure in PbSb2Te4 and anisotropy of hole relaxation time

The article analyses the existing set of data on the temperature dependences of the main kinetic coefficients and the IR-reflection spectra R(ν) of the PbSb2Te4 crystals. The form of the Fermi surface is discussed. The anisotropy of holes’ effective mass and relaxation time is estimated. The complex...

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Bibliographic Details
Published in:	Physics of complex systems Vol. 2; no. 4; pp. 165 - 171
Main Authors:	Nemov, Sergey A., Andreeva, Valentina D., Volkhin, Vitaliy, Proklova, Viktoriya Yu, Ulashkevich, Yuri V.
Format:	Journal Article
Language:	English
Published:	Herzen State Pedagogical University of Russia 01-12-2021
Subjects:	band structure crystal PbSb2Te4 Fermi surface semiconductor temperature transport properties
Online Access:	Get full text
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Summary:	The article analyses the existing set of data on the temperature dependences of the main kinetic coefficients and the IR-reflection spectra R(ν) of the PbSb2Te4 crystals. The form of the Fermi surface is discussed. The anisotropy of holes’ effective mass and relaxation time is estimated. The complex structure of the valence zone is confirmed, the values of these parameters are refined. Complex X-ray studies of the structure and composition of PbSb2Te4 samples gave the possibilities to clarify the real crystal structure and explain the number of features in the IR-reflection spectra.
ISSN:	2687-153X 2687-153X
DOI:	10.33910/2687-153X-2021-2-4-165-171