Non-monotonic temperature dependence of thermopower in strongly correlated electron systems
Strongly Correlated Electrons
2011-11-08 v4 Materials Science
Abstract
We examine the temperature dependence of thermopower in the single band Hubbard model using dynamical mean-field theory. The strong Coulomb interaction brings about the coherent-to-incoherent crossover as temperature increases. As a result, the thermopower exhibits non-monotonic temperature dependence and asymptotically approaches values given by the Mott-Heikes formula. In the light of our theoretical result, we discuss the thermopower in some transition metal oxides. The magnetic field dependence of the thermopower is also discussed.
Keywords
Cite
@article{arxiv.1104.2119,
title = {Non-monotonic temperature dependence of thermopower in strongly correlated electron systems},
author = {M. Matsuo and S. Okamoto and W. Koshibae and M. Mori and S. Maekawa},
journal= {arXiv preprint arXiv:1104.2119},
year = {2011}
}
Comments
4 pages, 4 figures