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

Abstract 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 u...

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Autores principales:	Yong Xu, Salah Uddin, Jun Wang, Jiansheng Wu, Jun-Feng Liu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/44199fbb46104b2b957345a77cdd54fe
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spelling	oai:doaj.org-article:44199fbb46104b2b957345a77cdd54fe2021-12-02T11:52:18ZPenetration depth and nonlocal manipulation of quantum spin hall edge states in chiral honeycomb nanoribbons10.1038/s41598-017-07994-z2045-2322https://doaj.org/article/44199fbb46104b2b957345a77cdd54fe2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07994-zhttps://doaj.org/toc/2045-2322Abstract 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.Yong XuSalah UddinJun WangJiansheng WuJun-Feng LiuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-6 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yong Xu Salah Uddin Jun Wang Jiansheng Wu Jun-Feng Liu Penetration depth and nonlocal manipulation of quantum spin hall edge states in chiral honeycomb nanoribbons
description	Abstract 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.
format	article
author	Yong Xu Salah Uddin Jun Wang Jiansheng Wu Jun-Feng Liu
author_facet	Yong Xu Salah Uddin Jun Wang Jiansheng Wu Jun-Feng Liu
author_sort	Yong Xu
title	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_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_sort	penetration depth and nonlocal manipulation of quantum spin hall edge states in chiral honeycomb nanoribbons
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/44199fbb46104b2b957345a77cdd54fe
work_keys_str_mv	AT yongxu penetrationdepthandnonlocalmanipulationofquantumspinhalledgestatesinchiralhoneycombnanoribbons AT salahuddin penetrationdepthandnonlocalmanipulationofquantumspinhalledgestatesinchiralhoneycombnanoribbons AT junwang penetrationdepthandnonlocalmanipulationofquantumspinhalledgestatesinchiralhoneycombnanoribbons AT jianshengwu penetrationdepthandnonlocalmanipulationofquantumspinhalledgestatesinchiralhoneycombnanoribbons AT junfengliu penetrationdepthandnonlocalmanipulationofquantumspinhalledgestatesinchiralhoneycombnanoribbons
_version_	1718395099699740672

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

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