Data was collected on an impedance analyser (Keysight impedance analyser E4990A) and using a sputtered gold coating of 300 nm 
thickness as the ion blocking electrodes. Measurements were performed from 298 - 575 K in 20 K steps. Data is presented in 4 column format: 
frequency (Hz), Z' (Ohmcm-1), Z''(Ohmcm-1) and temperature (C). Room temrpature and Variable temperture data can be found for all compositions
in the respective folders. 