Anomalous Thermoelectric Power of FeCr2S4near the Curie Temperature

Abstract

An anomalous increase of the thermoelectric power in semiconducting, $p$-type Fe${\mathrm{Cr}}_2$ ${\mathrm{S}}_4$ is found near the Curie temperature. Analysis of the Fermi energy indicates that this effect is apparently due to an additional kinetic energy which the charge carriers acquire through magnon-hole interaction.