Comparison of superionic phases for some fluorine conducting materials

摘要

Impedance spectroscopy data for a several materials with high ionic conductivity in the temperature range 298-473 K were obtained and analyzed. Investigated systems included pure PbSnF_4, KSn2F_5, RbSn_2F_5 and solid solutions based on PbSnF_4 and SnF_2. The values of the dc conductivity and activation energies are estimated from the analysis of the conductivity spectra. The factors which influence on conductivity, phase transitions and activation energies in the given system have been established.