Penetration depth and nonlocal manipulation of quantum spin hall edge states in chiral honeycomb nanoribbons

We have studied numerically the penetration depth of quantum spin hall edge states in chiral honeycomb nanoribbons based on the Green’s function method. The changing of edge orientation from armchair to zigzag direction decreases the penetration depth drastically. The penetration depth is used to es...

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Detalles Bibliográficos
Autores principales: Xu, Yong, Uddin, Salah, Wang, Jun, Wu, Jiansheng, Liu, Jun-Feng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5548728/
https://www.ncbi.nlm.nih.gov/pubmed/28790421
http://dx.doi.org/10.1038/s41598-017-07994-z
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author Xu, Yong
Uddin, Salah
Wang, Jun
Wu, Jiansheng
Liu, Jun-Feng
author_facet Xu, Yong
Uddin, Salah
Wang, Jun
Wu, Jiansheng
Liu, Jun-Feng
author_sort Xu, Yong
collection PubMed
description We have studied numerically the penetration depth of quantum spin hall edge states in chiral honeycomb nanoribbons based on the Green’s function method. The changing of edge orientation from armchair to zigzag direction decreases the penetration depth drastically. The penetration depth is used to estimate the gap opened for the finite-size effect. Beside this, we also proposed a nonlocal transistor based on the zigzag-like chiral ribbons in which the current is carried at one edge and the manipulation is by the edge magnetization at the other edge. The difficulty that the edge magnetization is unstable in the presence of a ballistic current can be removed by this nonlocal manipulation.
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spelling pubmed-55487282017-08-09 Penetration depth and nonlocal manipulation of quantum spin hall edge states in chiral honeycomb nanoribbons Xu, Yong Uddin, Salah Wang, Jun Wu, Jiansheng Liu, Jun-Feng Sci Rep Article We have studied numerically the penetration depth of quantum spin hall edge states in chiral honeycomb nanoribbons based on the Green’s function method. The changing of edge orientation from armchair to zigzag direction decreases the penetration depth drastically. The penetration depth is used to estimate the gap opened for the finite-size effect. Beside this, we also proposed a nonlocal transistor based on the zigzag-like chiral ribbons in which the current is carried at one edge and the manipulation is by the edge magnetization at the other edge. The difficulty that the edge magnetization is unstable in the presence of a ballistic current can be removed by this nonlocal manipulation. Nature Publishing Group UK 2017-08-08 /pmc/articles/PMC5548728/ /pubmed/28790421 http://dx.doi.org/10.1038/s41598-017-07994-z Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Xu, Yong
Uddin, Salah
Wang, Jun
Wu, Jiansheng
Liu, Jun-Feng
Penetration depth and nonlocal manipulation of quantum spin hall edge states in chiral honeycomb nanoribbons
title Penetration depth and nonlocal manipulation of quantum spin hall edge states in chiral honeycomb nanoribbons
title_full Penetration depth and nonlocal manipulation of quantum spin hall edge states in chiral honeycomb nanoribbons
title_fullStr Penetration depth and nonlocal manipulation of quantum spin hall edge states in chiral honeycomb nanoribbons
title_full_unstemmed Penetration depth and nonlocal manipulation of quantum spin hall edge states in chiral honeycomb nanoribbons
title_short Penetration depth and nonlocal manipulation of quantum spin hall edge states in chiral honeycomb nanoribbons
title_sort penetration depth and nonlocal manipulation of quantum spin hall edge states in chiral honeycomb nanoribbons
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5548728/
https://www.ncbi.nlm.nih.gov/pubmed/28790421
http://dx.doi.org/10.1038/s41598-017-07994-z
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