Electrical behaviour of the system La1.33NaxMnxTi2−xO6 (x=0.66, 0.55 and 0.44)

Abstract

Polycrystalline samples of composition La_1.33Na_xMn_xTi_2−xO₆ (x=0.66, 0.55 and 0.44) with a perovskite-type structure have been obtained by a ceramic method. Electrical characterisation of these phases were carried out by a.c. techniques and the ionic transference number has been calculated by a charge/discharge d.c. technique. The x=0.66 sample behaves as an electronic conductor whereas the remaining compositions could be considered as mixed conductors.