Electrical properties of ternary molybdates

The possibility of ternary molybdates of compositions Tl5LnHf(MoO4)6 (5 : 1 : 2) (Ln = Dy-Lu), TlLnHf0.5(MoO4)3 (1 : 1 : 1) (Ln = Ce-Nd), and Tl2LnHf2(MoO4)6.5 (2 : 1 : 4) (Ln = Dy-Lu) was investigated by a method of solid state reactions. A temperature dependence of electrical conductivity in the temperature range 200–500°C was studied.