The conductivity was determined by using alternating-current bridge techniques and sealed capillary-type cells. The conductivity, at temperatures ranging from 346 to 485K, could be described by:

σT (S/cm) = 2864 exp[-0.34(eV)/kT]

It was found that the compound was probably a fast Cu-ion conductor. The conductivity was assumed to be due mainly to anion motion.

A.Wojakowska, E.Kundys: Journal of Materials Science, 1990, 25[8], 3780-4