Thermo-Magneto-Electric Transport through a Torsion Dislocation in a Type I Weyl Semimetal

Herein, we study electronic and thermoelectric transport in a type I Weyl semimetal nanojunction, with a torsional dislocation defect, in the presence of an external magnetic field parallel to the dislocation axis. The defect is modeled in a cylindrical geometry, as a combination of a gauge field ac...

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Autores principales:	Daniel Bonilla, Enrique Muñoz, Rodrigo Soto-Garrido
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	weyl semimetals transport torsion dislocation magnetic field Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/973ec025b0a2461e9a311758db1910e3
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spelling	oai:doaj.org-article:973ec025b0a2461e9a311758db1910e32021-11-25T18:31:18ZThermo-Magneto-Electric Transport through a Torsion Dislocation in a Type I Weyl Semimetal10.3390/nano111129722079-4991https://doaj.org/article/973ec025b0a2461e9a311758db1910e32021-11-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/2972https://doaj.org/toc/2079-4991Herein, we study electronic and thermoelectric transport in a type I Weyl semimetal nanojunction, with a torsional dislocation defect, in the presence of an external magnetic field parallel to the dislocation axis. The defect is modeled in a cylindrical geometry, as a combination of a gauge field accounting for torsional strain and a delta-potential barrier for the lattice mismatch effect. In the Landauer formalism, we find that due to the combination of strain and magnetic field, the electric current exhibits chiral valley-polarization, and the conductance displays the signature of Landau levels. We also compute the thermal transport coefficients, where a high thermopower and a large figure of merit are predicted for the junction.Daniel BonillaEnrique MuñozRodrigo Soto-GarridoMDPI AGarticleweyl semimetalstransporttorsiondislocationmagnetic fieldChemistryQD1-999ENNanomaterials, Vol 11, Iss 2972, p 2972 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	weyl semimetals transport torsion dislocation magnetic field Chemistry QD1-999
spellingShingle	weyl semimetals transport torsion dislocation magnetic field Chemistry QD1-999 Daniel Bonilla Enrique Muñoz Rodrigo Soto-Garrido Thermo-Magneto-Electric Transport through a Torsion Dislocation in a Type I Weyl Semimetal
description	Herein, we study electronic and thermoelectric transport in a type I Weyl semimetal nanojunction, with a torsional dislocation defect, in the presence of an external magnetic field parallel to the dislocation axis. The defect is modeled in a cylindrical geometry, as a combination of a gauge field accounting for torsional strain and a delta-potential barrier for the lattice mismatch effect. In the Landauer formalism, we find that due to the combination of strain and magnetic field, the electric current exhibits chiral valley-polarization, and the conductance displays the signature of Landau levels. We also compute the thermal transport coefficients, where a high thermopower and a large figure of merit are predicted for the junction.
format	article
author	Daniel Bonilla Enrique Muñoz Rodrigo Soto-Garrido
author_facet	Daniel Bonilla Enrique Muñoz Rodrigo Soto-Garrido
author_sort	Daniel Bonilla
title	Thermo-Magneto-Electric Transport through a Torsion Dislocation in a Type I Weyl Semimetal
title_short	Thermo-Magneto-Electric Transport through a Torsion Dislocation in a Type I Weyl Semimetal
title_full	Thermo-Magneto-Electric Transport through a Torsion Dislocation in a Type I Weyl Semimetal
title_fullStr	Thermo-Magneto-Electric Transport through a Torsion Dislocation in a Type I Weyl Semimetal
title_full_unstemmed	Thermo-Magneto-Electric Transport through a Torsion Dislocation in a Type I Weyl Semimetal
title_sort	thermo-magneto-electric transport through a torsion dislocation in a type i weyl semimetal
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/973ec025b0a2461e9a311758db1910e3
work_keys_str_mv	AT danielbonilla thermomagnetoelectrictransportthroughatorsiondislocationinatypeiweylsemimetal AT enriquemunoz thermomagnetoelectrictransportthroughatorsiondislocationinatypeiweylsemimetal AT rodrigosotogarrido thermomagnetoelectrictransportthroughatorsiondislocationinatypeiweylsemimetal
_version_	1718411033077350400

Thermo-Magneto-Electric Transport through a Torsion Dislocation in a Type I Weyl Semimetal

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