Abstract
The specific features of the charge transfer in intercalated samples of AgxHfSe2 have been studied for the first time by alternating current (ac) impedance spectroscopy. It has been found that relaxation pro� cesses in an ac field are accelerated with increasing silver content in the samples. The complex conductivity (Y) shows a frequency dispersion described by power law Y ~ ω s , which is characteristic of the hopping con� ductivity mechanism. The Agx HfSe 2 compounds demonstrate shorter relaxation times as compared to those observed in hafnium diselenide intercalated with copper atoms, and this fact indicates that the charge carrier mobility in the silverintercalated compounds is hi gher. The possibility of silver ion transfer in AgxHfSe2 is confirmed by the measurements performed by the method of electrochemical cell emf.
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