Modeling critical thermoelectric transports driven by band broadening and phonon softening.

ABSTRACT: Critical phenomena are one of the most captivating areas of modern physics, whereas the relevant experimental and theoretical studies are still very challenging. Particularly, the underlying mechanism behind the anomalous thermoelectric properties during critical phase transitions remains elusive, i.e., the current theoretical models for critical electrical transports are either qualitative or solely focused on a specific transport parameter. Herein, we develop a quantitative theory to model the electrical transports during critical phase transitions by incorporating both the band broadening effect and carrier-soft TO phonon interactions. It is found that the band-broadening effect contributes an additional term to Seebeck coefficient, while the carrier-soft TO phonon interactions greatly

SUBMITTER: Zhao K 

PROVIDER: S-EPMC10817957 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature