Electrical Properties of Triple Molybdates Rb5LnHf(MoO4)6

Triple molybdates of the compositions Rb5LnHf(MoO4)6 (5:1:2) and Rb2LnHf2(MoO4)6.5 (2:1:4), Ln = Ce-Lu, were prepared by solid-phase reactions. The temperature dependence of the electrical conductivity of the compounds Rb5LnHf(MoO4)6 (5:1:2) at 200–500°C was studied.