Thermoelectric Transport Driven by the Hilbert-Schmidt Distance.

ABSTRACT: The geometric characteristics of Bloch wavefunctions play crucial roles in the properties of electronic transport. Within the Boltzmann equation framework, we demonstrate that the thermoelectric performance of materials is significantly influenced by the Hilbert-Schmidt distance of Bloch wavefunctions. The connection between the distribution of quantum distance on the Fermi surface and the electronic transport scattering rate is established in the presence of magnetic and nonmagnetic impurities. The general formulation is applied to isotropic quadratic band-touching semimetals, where one can concentrate on the role of quantum geometric effects other than the Berry curvature. It is verified that the thermoelectric power factor can be succinctly expressed in terms of the maximum quantum dist

SUBMITTER: Oh CG 

PROVIDER: S-EPMC11672305 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature