Anisotropic Thermoelectrics Based on Extruded Samples of Bi0.85Sb0.15 Solid Solution Doped with Tellurium

TAĞIYEV M., Aliyeva K., Piriyeva T., Jafarova S.

in: Sustainable Aviation, Springer Nature, pp.259-263, 2026 identifier

  • Publication Type: Book Chapter / Chapter Research Book
  • Publication Date: 2026
  • Doi Number: 10.1007/978-3-032-07678-6_46
  • Publisher: Springer Nature
  • Page Numbers: pp.259-263
  • Keywords: anisotropy, annealing, electrical conductivity, extrusion, impurity
  • Azerbaijan State University of Economics (UNEC) Affiliated: Yes

Abstract

The influence of tellurium impurities and heat treatment on the anisotropy of the magnetoelectric properties of extruded samples of the Bi0.85Sb0.15 solid solution in the range of 77 ÷ 300 K and magnetic field strengths up to ~74 × 104A/m was studied. It was found that in annealed samples of Bi0.85Sb0.15 with 0.001 at.% tellurium, the absolute values of α in the direction perpendicular to the extrusion axis are more sensitive to the magnetic field than in the parallel direction and the anisotropy of the thermopower (∆α) at a magnetic field strength H = 42 × 104A/m reaches the value ∆α = 80 μV/K at ~77 K.