publication venue for The log(sigma) vs. log(omega) derivative plot used to analyze the ac conductivity. Application to fast Li+ ion conductors with perovskite structure. 227:113-118. 2012 Positron annihilation study of defect distribution in 8YSZ nanostructure. 190:67-74. 2011 Li mobility in Li0.5-xNaxLa0.5TiO3 perovskites (0 <= x <= 0.5): Influence of structural and compositional parameters. 180:1362-1371. 2009 Influence of octahedral tilting and composition on electrical properties of the Li0.2-xNaxLa0.6TiO3 (0 <= x <= 0.2) series. 179:495-502. 2008