Band–Nonband Mobility Transition for Extra Electrons in Liquid Xenon

Abstract

The mobility of electrons in xenon increases from 1080 cm2/Vs at 168 K to a maximum of 3900 cm2/Vs at 220 K, then decreases as the temperature is increased further, reaching 21 cm2/Vs at the critical temperature, 290 K. The pressure on the sample was the vapor pressure of the liquid and the field strength was 16 V/cm. Electron scattering appears to be gas-like in the liquid near the critical region, while electron transport occurs in conduction bands in the liquid at lower temperatures.