Transport properties of metal-ammonia solutions in the non-metal transition range

Abstract

Transport properties (Hall effect, thermoelectric power, electrical conductivity) of metal—ammonia solutions in the non-metal-metal transition concentration range are analysed. It is shown that these properties have to be interpreted in a two-carrier model. The concentrations of the carriers and their mobility variations with metal concentration are obtained from experimental data. The minimum found experimentally in the Hall coefficient ratio α = (R _FE/R _H) as a function of metal concentration is shown to be a consequence of the electrolytic nature of dilute metal—ammonia solutions.