Figure 11 | Scientific Reports

Figure 11

From: Effects of multiple cations and sintering temperature on microstructure and dielectric properties in Na1/2Ln1/2Cu3Ti4O12 (Ln = Sm and Eu) ceramic materials

Figure 11

Impedance complex plane plots in the temperature range of 343–423 K for (a) NECTO-950, (b) NSCTO-950 and (c) NSCTO-975 ceramics; (d) Arrhenius plots of ac conductivity (σAC) for these three samples. Red solid lines are the linear fitting curves. Equivalent circuit indicated in frame (b) is used to represent the electrical properties of grain, grain boundary and surface effects.

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