Electronic properties of semiconducting

Measurements of specific heat, electrical resistivity, thermo-electric power, thermal conductivity, and the Hall coefficient on the semiconducting compound CeRu 4 Sn 6 are presented. In C / T , the electronic specific heat, a - ln T divergent temperature dependence develops below 2 K, reaching 396 mJ / mole K 2 at 0.36 K. The zero-field resistivity increases down to 0.36 K after a weak minimum at 3 K. The interpretation of these characteristics in terms of a low carrier density are further borne out by data of the thermal transport.