N. P. Stepanov, S. A. Nemov, I. V. Sveshnikov, G. I. Grabko, A. N. Vlasov, A. V. Leskov, A. A. Kalashnicov, L. È. Stepanova, “Temperature dependences of the thermal emf coefficient, resistivity and thermal conductivity of the electron and hole pyrite FeS<nobr>$_2$</nobr> in the range of 293–400 K”, Fizika i Tekhnika Poluprovodnikov, 2021, Volume 55, Issue 9,Pages <nobr>826

Amorphous, glassy, organic semiconductors

Temperature dependences of the thermal emf coefficient, resistivity and thermal conductivity of the electron and hole pyrite FeS$_2$ in the range of 293–400 K

N. P. Stepanov^ab, S. A. Nemov^ac, I. V. Sveshnikov^a, G. I. Grabko^a, A. N. Vlasov^a, A. V. Leskov^a, A. A. Kalashnicov^d, L. È. Stepanova^ab

^a Zabaikalsky State University, Chita
^b Siberian University of Consumer's Cooperation
^c Peter the Great St. Petersburg Polytechnic University
^d Zabaikalsky Institute of Railway Transport, Magistral'naya str.

Abstract: The temperature dependences of the thermal EMF, the specific electrical conductivity, and the specific thermal conductivity of samples of natural pyrite FeS$_2$, with electronic and hole-type conductivity, are studied in the temperature range of 293–400 K. The data obtained are in good agreement with the results of previous studies of the electrical properties of this mineral, established in the course of geophysical studies. Based on the results of the performed measurements, as well as taking into account the known data on the temperature behavior of the thermo-EMF and the specific electrical conductivity of pyrite in the range of 300–700 K, estimates of its thermoelectric efficiency are made.

Keywords: pyrite, thermal EFM, specific electrical conductivity, specific thermal conductivity, thermoelectric efficiency.

Received: 14.04.2021
Revised: 22.04.2021
Accepted: 22.04.2021

DOI: 10.21883/FTP.2021.09.51303.9667