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Oscillating edge states in one-dimensional MoS(2) nanowires

Reducing the dimensionality of transition metal dichalcogenides to one dimension opens it to structural and electronic modulation related to charge density wave and quantum correlation effects arising from edge states. The greater flexibility of a molecular scale nanowire allows a strain-imposing su...

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Autores principales: Xu, Hai, Liu, Shuanglong, Ding, Zijing, Tan, Sherman J. R., Yam, Kah Meng, Bao, Yang, Nai, Chang Tai, Ng, Man-Fai, Lu, Jiong, Zhang, Chun, Loh, Kian Ping
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5059444/
https://www.ncbi.nlm.nih.gov/pubmed/27698478
http://dx.doi.org/10.1038/ncomms12904
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author Xu, Hai
Liu, Shuanglong
Ding, Zijing
Tan, Sherman J. R.
Yam, Kah Meng
Bao, Yang
Nai, Chang Tai
Ng, Man-Fai
Lu, Jiong
Zhang, Chun
Loh, Kian Ping
author_facet Xu, Hai
Liu, Shuanglong
Ding, Zijing
Tan, Sherman J. R.
Yam, Kah Meng
Bao, Yang
Nai, Chang Tai
Ng, Man-Fai
Lu, Jiong
Zhang, Chun
Loh, Kian Ping
author_sort Xu, Hai
collection PubMed
description Reducing the dimensionality of transition metal dichalcogenides to one dimension opens it to structural and electronic modulation related to charge density wave and quantum correlation effects arising from edge states. The greater flexibility of a molecular scale nanowire allows a strain-imposing substrate to exert structural and electronic modulation on it, leading to an interplay between the curvature-induced influences and intrinsic ground-state topology. Herein, the templated growth of MoS(2) nanowire arrays consisting of the smallest stoichiometric MoS(2) building blocks is investigated using scanning tunnelling microscopy and non-contact atomic force microscopy. Our results show that lattice strain imposed on a nanowire causes the energy of the edge states to oscillate periodically along its length in phase with the period of the substrate topographical modulation. This periodic oscillation vanishes when individual MoS(2) nanowires join to form a wider nanoribbon, revealing that the strain-induced modulation depends on in-plane rigidity, which increases with system size.
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spelling pubmed-50594442016-10-26 Oscillating edge states in one-dimensional MoS(2) nanowires Xu, Hai Liu, Shuanglong Ding, Zijing Tan, Sherman J. R. Yam, Kah Meng Bao, Yang Nai, Chang Tai Ng, Man-Fai Lu, Jiong Zhang, Chun Loh, Kian Ping Nat Commun Article Reducing the dimensionality of transition metal dichalcogenides to one dimension opens it to structural and electronic modulation related to charge density wave and quantum correlation effects arising from edge states. The greater flexibility of a molecular scale nanowire allows a strain-imposing substrate to exert structural and electronic modulation on it, leading to an interplay between the curvature-induced influences and intrinsic ground-state topology. Herein, the templated growth of MoS(2) nanowire arrays consisting of the smallest stoichiometric MoS(2) building blocks is investigated using scanning tunnelling microscopy and non-contact atomic force microscopy. Our results show that lattice strain imposed on a nanowire causes the energy of the edge states to oscillate periodically along its length in phase with the period of the substrate topographical modulation. This periodic oscillation vanishes when individual MoS(2) nanowires join to form a wider nanoribbon, revealing that the strain-induced modulation depends on in-plane rigidity, which increases with system size. Nature Publishing Group 2016-10-04 /pmc/articles/PMC5059444/ /pubmed/27698478 http://dx.doi.org/10.1038/ncomms12904 Text en Copyright © 2016, 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
Xu, Hai
Liu, Shuanglong
Ding, Zijing
Tan, Sherman J. R.
Yam, Kah Meng
Bao, Yang
Nai, Chang Tai
Ng, Man-Fai
Lu, Jiong
Zhang, Chun
Loh, Kian Ping
Oscillating edge states in one-dimensional MoS(2) nanowires
title Oscillating edge states in one-dimensional MoS(2) nanowires
title_full Oscillating edge states in one-dimensional MoS(2) nanowires
title_fullStr Oscillating edge states in one-dimensional MoS(2) nanowires
title_full_unstemmed Oscillating edge states in one-dimensional MoS(2) nanowires
title_short Oscillating edge states in one-dimensional MoS(2) nanowires
title_sort oscillating edge states in one-dimensional mos(2) nanowires
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5059444/
https://www.ncbi.nlm.nih.gov/pubmed/27698478
http://dx.doi.org/10.1038/ncomms12904
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