Electrical and Galvanomagnetic Properties of Extruded Samples of Bi<sub>85</sub>Sb<sub>15</sub> Solid Solutions with Pb and Te Impurities

Tagiev M., Abdinova G. D.

RUSSIAN PHYSICS JOURNAL, vol.61, no.11, pp.2135-2138, 2019 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 61 Issue: 11
  • Publication Date: 2019
  • Doi Number: 10.1007/s11182-019-01647-6
  • Journal Name: RUSSIAN PHYSICS JOURNAL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.2135-2138
  • Azerbaijan State University of Economics (UNEC) Affiliated: Yes

Abstract

The effect of tellurium impurities on the electrical conductivity (sigma), Seebeck coefficient (), and Hall coefficient R of extruded Bi85Sb15 + 0.001 at.% Pb is studied in the temperature range 77-300 K. It is found that doping with tellurium impurities up to 0.001 at. % compensating acceptor Pb atoms leads to a strong decrease in the electron density and, consequently, to an increase in sigma and significant decrease in the values of and R. The materials obtained can be used as the n-branch of thermoelements operating at temperatures of similar to 77 K.