Enhancement of the effective disorder potential and the thermopower in Na${}_x$CoO${}_2$ through the electron-phonon coupling

G. Sangiovanni, P. Wissgott, F. Assaad +2

The effects of an electron-phonon ($e$-ph) interaction on the thermoelectric properties of Na${}_x$CoO${}_2$ are analyzed. By means of dynamical mean field theory calculations we find…