Specific features of Bi2Te3 doping with Sn

Abstract

The effect of doping bismuth telluride with tin, on its electrophysical properties, has been studied. It is shown that the main features in the transport coefficients of Bi2Te3:Sn can be explained by the existence of resonant Sn states within the valence band. The existence of resonant Sn states was confirmed by codoping Bi2Te3:Sn with the electroactive impurity I.