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|Title:||High-temperature electrical conductivity of the xNBT–(1-x)LMT ceramics: verification of Meyer-Neldel rule|
Rubanik, Vasili V.
Shilin, Aleksandr D.
Salak, Andrei N.
|Publisher:||Taylor & Francis|
|Abstract:||Electrical conductivity behaviour of x(Na0.5Bi0.5)TiO3-(1-x)La(Mg0.5Ti0.5)O3 ceramics with x ranging from 0.95 to 0.8 was analysed in the temperature range from 300 K to 800 K at microwaves (1MHz – 1GHz frequency region). Analysis of calculated DC conductivity parameters has shown that the activation energy changes at about 690 K which could be associated with the phase change in these materials. The logarithm of preexponential factor of DC conductivity changes linearly according to the activation energy, i.e. it follows Meyer-Neldel rule both below and above the phase transition point.|
|Appears in Collections:||CICECO - Artigos|
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