Multiterminal conductance of a floquet topological insulator
We report on simulations of the dc conductance and quantum Hall response of a Floquet topological insulator using Floquet scattering theory. Our results reveal that laser-induced edge states lead to quantum Hall plateaus once imperfect matching with the nonilluminated leads is lessened. The magnitud...
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Autores principales: | , , , |
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Formato: | article |
Lenguaje: | Inglés |
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2021
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Acceso en línea: | http://hdl.handle.net/11086/20361 https://doi.org/10.1103/PhysRevLett.113.266801 |
Aporte de: |
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I10-R141-11086-20361 |
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institution |
Universidad Nacional de Córdoba |
institution_str |
I-10 |
repository_str |
R-141 |
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Repositorio Digital Universitario (UNC) |
language |
Inglés |
topic |
Graphene Topological insulators Floquet theory |
spellingShingle |
Graphene Topological insulators Floquet theory Foa Torres, Luis Eduardo Francisco Pérez Piskunow, Pablo Matías Balseiro, Carlos A. Usaj, Gonzalo Multiterminal conductance of a floquet topological insulator |
topic_facet |
Graphene Topological insulators Floquet theory |
description |
We report on simulations of the dc conductance and quantum Hall response of a Floquet topological insulator using Floquet scattering theory. Our results reveal that laser-induced edge states lead to quantum Hall plateaus once imperfect matching with the nonilluminated leads is lessened. The magnitude of the Hall plateaus, however, is not directly related to the number and chirality of all the edge states at a given energy, as usual. Instead, the plateaus are dominated by those edge states adding to the time-averaged density of states. Therefore, the dc quantum Hall conductance of a Floquet topological insulator is not directly linked to topological invariants of the full Floquet bands. |
format |
article |
author |
Foa Torres, Luis Eduardo Francisco Pérez Piskunow, Pablo Matías Balseiro, Carlos A. Usaj, Gonzalo |
author_facet |
Foa Torres, Luis Eduardo Francisco Pérez Piskunow, Pablo Matías Balseiro, Carlos A. Usaj, Gonzalo |
author_sort |
Foa Torres, Luis Eduardo Francisco |
title |
Multiterminal conductance of a floquet topological insulator |
title_short |
Multiterminal conductance of a floquet topological insulator |
title_full |
Multiterminal conductance of a floquet topological insulator |
title_fullStr |
Multiterminal conductance of a floquet topological insulator |
title_full_unstemmed |
Multiterminal conductance of a floquet topological insulator |
title_sort |
multiterminal conductance of a floquet topological insulator |
publishDate |
2021 |
url |
http://hdl.handle.net/11086/20361 https://doi.org/10.1103/PhysRevLett.113.266801 |
work_keys_str_mv |
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bdutipo_str |
Repositorios |
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