It was pointed out that the material exhibited a conductivity of 0.01S/cm at 500K, an activation energy of 0.34eV below 400K, and an activation energy of 0.31eV above 400K. The transport number was approximately equal to 0.99. This value agreed with 119Sn Mössbauer spectroscopic data which revealed an isomer shift of 3.50mm/s and a quadrupole splitting of 1.96mm/s.

G.Denes, T.Birchall, M.Sayer, M.F.Bell: Solid State Ionics, 1984, 13[3], 213-9