On the thermopower and thermomagnetic properties of ErxSn1–xSe solid solutions

Abstract

The Er_xSn_1–xSe system is characterized by a significant deviation of the temperature dependence of the differential thermopower from linearity at temperatures below room temperature and a change in the sign of the thermomagnetic coefficient. The deviation of the thermopower of Er_xSn_1–xSe samples in the nonequilibrium state from linearity is found to be caused mainly by the entrainment of charge carriers by phonons α_ph. The statistical forces of electronic entrainment, A_ph(ε), are estimated.