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Effects of light on quantum phases and topological properties of two-dimensional Metal-organic frameworks

Periodically driven nontrivial quantum states open another door to engineer topological phases in solid systems by light. Here we show, based on the Floquet-Bloch theory, that the on-resonant linearly and circularly polarized infrared light brings in the exotic Floquet quantum spin Hall state and ha...

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Detalles Bibliográficos
Autores principales: Wang, Yunhua, Liu, Yulan, Wang, Biao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5278405/
https://www.ncbi.nlm.nih.gov/pubmed/28134315
http://dx.doi.org/10.1038/srep41644
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author Wang, Yunhua
Liu, Yulan
Wang, Biao
author_facet Wang, Yunhua
Liu, Yulan
Wang, Biao
author_sort Wang, Yunhua
collection PubMed
description Periodically driven nontrivial quantum states open another door to engineer topological phases in solid systems by light. Here we show, based on the Floquet-Bloch theory, that the on-resonant linearly and circularly polarized infrared light brings in the exotic Floquet quantum spin Hall state and half-metal in two-dimensional Metal-organic frameworks (2D MOFs) because of the unbroken and broken time-reversal symmetry, respectively. We also observe that the off-resonant light triggers topological quantum phase transitions and induces semimetals with pseudospin-1 Dirac-Weyl fermions via the photon-dressed topological band structures of 2D MOFs. This work paves a way to design light-controlled spintronics and optoelectronics based on 2D MOFs.
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spelling pubmed-52784052017-02-03 Effects of light on quantum phases and topological properties of two-dimensional Metal-organic frameworks Wang, Yunhua Liu, Yulan Wang, Biao Sci Rep Article Periodically driven nontrivial quantum states open another door to engineer topological phases in solid systems by light. Here we show, based on the Floquet-Bloch theory, that the on-resonant linearly and circularly polarized infrared light brings in the exotic Floquet quantum spin Hall state and half-metal in two-dimensional Metal-organic frameworks (2D MOFs) because of the unbroken and broken time-reversal symmetry, respectively. We also observe that the off-resonant light triggers topological quantum phase transitions and induces semimetals with pseudospin-1 Dirac-Weyl fermions via the photon-dressed topological band structures of 2D MOFs. This work paves a way to design light-controlled spintronics and optoelectronics based on 2D MOFs. Nature Publishing Group 2017-01-30 /pmc/articles/PMC5278405/ /pubmed/28134315 http://dx.doi.org/10.1038/srep41644 Text en Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Wang, Yunhua
Liu, Yulan
Wang, Biao
Effects of light on quantum phases and topological properties of two-dimensional Metal-organic frameworks
title Effects of light on quantum phases and topological properties of two-dimensional Metal-organic frameworks
title_full Effects of light on quantum phases and topological properties of two-dimensional Metal-organic frameworks
title_fullStr Effects of light on quantum phases and topological properties of two-dimensional Metal-organic frameworks
title_full_unstemmed Effects of light on quantum phases and topological properties of two-dimensional Metal-organic frameworks
title_short Effects of light on quantum phases and topological properties of two-dimensional Metal-organic frameworks
title_sort effects of light on quantum phases and topological properties of two-dimensional metal-organic frameworks
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5278405/
https://www.ncbi.nlm.nih.gov/pubmed/28134315
http://dx.doi.org/10.1038/srep41644
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