Open AccessInfluence of Ag2Te on Transport Properties of (AgS-bTe2)0.9(PbTe)0.1
Author(s) -
С. С. Рагимов,
M. A. Musayev,
N. N. Hashimova
Publication year - 2021
Publication title -
ukrainian journal of physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.213
H-Index - 17
eISSN - 2071-0194
pISSN - 2071-0186
DOI - 10.15407/ujpe66.11.983
Subject(s) - seebeck coefficient , materials science , thermoelectric effect , condensed matter physics , electrical resistivity and conductivity , sign (mathematics) , differential scanning calorimetry , thermoelectric materials , phase (matter) , hall effect , thermodynamics , physics , mathematical analysis , mathematics , quantum mechanics
The transport properties of (AgSbTe2)0.9(PbTe)0.1, namely, the electrical conductivity and the Seebeck (S) and Hall (RH) coefficients, are studied in the temperature interval 80–560 K. An endothermic peak at 410 K is found by the differential scanning calorimetry (DSC). Sharp changes in the temperature dependences of the electrical conductivity and thermoelectric power in the region near 410 K are observed. The temperature dependence of Hall coefficient passes through maximum at ∼200 K and has negative sign. It is shown that, these peculiarities are due to the presence of the Ag2Te phase. The thermoelectric Z-factor has the maximum value of 2.7 × 10−3 K−1 at 400 K.