Fig. 2.

Normal-state Seebeck coefficient for LCCO films x ≥ 0.14 and PCCO films with x ≥ 0.16, plotted as $S/T$ vs. $\text{ln}\hspace{0.17em}T$. The solid lines are a linear fit to the data. For all of the films $S/T$ exhibits $–\text{ln}\hspace{0.17em}T$ dependence down to the lowest measured temperature of around 2 K for LCCO and 3 K for PCCO.