Unconventional thermoelectric transport in tilted Weyl semimetals

Autor:	Ballestad, Thorvald M., Cortijo, Alberto, Vozmediano, María A. H., Qaiumzadeh, Alireza
Rok vydání:	2022
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Materials Science Condensed Matter - Other Condensed Matter
Zdroj:	Phys. Rev. B 107, 014410 (2023)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.107.014410
Popis:	We analyze the effect of the tilt on the transverse thermoelectric coefficient of Weyl semimetals in the \emph{conformal} limit, i.e., zero temperature and zero chemical potential. Using the Kubo formalism, we find a nonmonotonic behavior of the thermoelectric conductivity as a function of the tilt perpendicular to the magnetic field, and a linear behavior when the tilt is aligned to the magnetic field. An ``axial Nernst" current (chiral currents counter propagating perpendicularly to the magnetic field and the temperature gradient) is generated in inversion symmetric Weyl materials when the tilt vector has a projection in the direction of the magnetic field. This analysis will help in the design and interpretation of thermoelectric transport experiments in recently discovered topological quantum materials. Comment: 8 pages, 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2209.14331 Zobrazit plný text záznamu View this record from Arxiv