English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Electronic frustration and strong correlations may lead to large Seebeckcoefficients. To understand this physics on general grounds, we compute thethermopower of the one-band Hubbard model on the 3-dimensional fcc lattice overthe whole range of fillings for intermediate and large interaction strength.Dynamical mean-field theory shows that when the density approacheshalf-filling, the fcc lattice at strong coupling exhibits a large lowtemperature Seebeck coefficient $S$. The largest effect occurs as oneapproaches $n=1$ from dopings where electronic frustration is maximized. Thehigh-frequency limit of the thermopower and the Kelvin limit are both used toprovide physical insight as well as practical tools to estimate thethermopower. The high-frequency limit gives a reliable estimate of the DC limitat low temperature when the metal becomes coherent. By contrast, the Kelvinapproach is useful in the strongly interacting case at high temperature whentransport is incoherent. The latter result shows that in doped Mott insulatorsat high temperature and strong coupling the thermopower can be understood onentropic grounds.

Entropy, frustration and large thermopower of doped Mott insulators on the fcc lattice