KINETIC AND THERMOELECTRIC PROPERTIES OF FEXHG1-XSE ALLOYS

Single crystals of FexHg1-xSe (0 less than or equal to x less than or equal to 0.2) were prepared, and their electrical, galvanomagnetic, an d thermoelectric properties were studied between 77 and 400 K in field s up to 12 kA/m. The R(H)(T) and sigma(T) dependences measured for dif ferent compositions indicate that the Hall coefficient increases with iron content and that the Hall mobility as a function of temperature f ollows the power law, mu similar to T--m, with different exponents at high and low temperatures. Comparison of the calculated and experiment al data on the thermoelectric power suggests that, in the temperature range examined, the scattering of charge carriers is due to optical ph onons and piezoacoustic potential.