Anisotropy of Thermomagnetic Effects in Pb1−xSnxTe

Abstract

According to thr current band model of PbTe and its alloys with SnTe, the absolute extrema of conduction and valence bands at low and intermediate temperatures are localised at L. points of the Brillouin zone. The isoenergetic surfaces corresponding to theese extrema present figures of revolution closet o ellipsoids prolate along the directions. As it has been started in the complexy of the energy spectrum of charge carriers in alloys under considerations in the general case may lead to the appearence of a considerable anisotropy of transport phenomena.