Abstract
Abstract The dc steady state electrical conductivity was measured by two terminal methods in the vicinity of phase transition point for pure and doped ferroelectric KVO3 and LiVO3. An exponential law is obeyed in both ferroelectric and paraelectric regions, with a change in activation energy at Tc . It was observed that the activation energy increases slowly with increasing dopant concentration up to 0.5 mol% Nd2O3, however decreases for higher concentrations, in both ferro and para states. The activation energy in the paraelectric phase is greater than that in the ferroelectric phase.
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