Jernej Mravlje: Seebeck coefficient in skewed non-Fermi liquids: application to Nd-LSCO
We consider thermoelectric transport in correlated metals with disorder within a simple phenomenological approach. We allow for a particle-hole asymmetry in the inelastic scattering rate. We find that the effects of this asymmetry disappear at low temperatures in Fermi liquids (where electronic contribution to resistivity r~ T2) but not in non-Fermi liquids (r~ Tn: n*1), which can lead to changes of sign of the Seebeck coefficient at low temperatures with respect to that found in a band theory. We apply the theory to recent measurements of thermoelectric transport in Nd-LSCO cuprate close to the pseudo-gap ending point and show that both the inplane and outofplane measured resistivity and the Seebeck coefficient are consistently described.
