Thermoelectric transport in Weyl semimetals under a uniform concentration of torsional dislocations

Abstract

In this article, we present an effective continuum model for a Weyl semimetal, to calculate its thermal and thermoelectric transport coefficients in the presence of a uniform concentration of torsional dislocations. We model each dislocation as a cylindrical region of finite radius a, where the corresponding elastic strain is described as a gauge field leading to a local pseudo-magnetic field. The transport coefficients are obtained by a combination of scattering theory, Green's functions and the Kubo formulae in the linear response regime. We applied our theoretical results to predict the electrical and thermal conductivities as well as the Seebeck coefficient for several transition metal monopnictides, i.e. TaAs, TaP, NbAs and NbP.

Graphical abstract: Thermoelectric transport in Weyl semimetals under a uniform concentration of torsional dislocations

Supplementary files

Article information

Article type
Paper
Submitted
19 Jan 2024
Accepted
01 Apr 2024
First published
03 Apr 2024
This article is Open Access
Creative Commons BY license

Nanoscale Adv., 2024, Advance Article

Thermoelectric transport in Weyl semimetals under a uniform concentration of torsional dislocations

D. A. Bonilla and E. Muñoz, Nanoscale Adv., 2024, Advance Article , DOI: 10.1039/D4NA00056K

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