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Cross-dimensional electron-phonon coupling in van der Waals heterostructures

The electron-phonon coupling (EPC) in a material is at the frontier of the fundamental research, underlying many quantum behaviors. van der Waals heterostructures (vdWHs) provide an ideal platform to reveal the intrinsic interaction between their electrons and phonons. In particular, the flexible va...

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Autores principales: Lin, Miao-Ling, Zhou, Yu, Wu, Jiang-Bin, Cong, Xin, Liu, Xue-Lu, Zhang, Jun, Li, Hai, Yao, Wang, Tan, Ping-Heng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6546732/
https://www.ncbi.nlm.nih.gov/pubmed/31160599
http://dx.doi.org/10.1038/s41467-019-10400-z
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author Lin, Miao-Ling
Zhou, Yu
Wu, Jiang-Bin
Cong, Xin
Liu, Xue-Lu
Zhang, Jun
Li, Hai
Yao, Wang
Tan, Ping-Heng
author_facet Lin, Miao-Ling
Zhou, Yu
Wu, Jiang-Bin
Cong, Xin
Liu, Xue-Lu
Zhang, Jun
Li, Hai
Yao, Wang
Tan, Ping-Heng
author_sort Lin, Miao-Ling
collection PubMed
description The electron-phonon coupling (EPC) in a material is at the frontier of the fundamental research, underlying many quantum behaviors. van der Waals heterostructures (vdWHs) provide an ideal platform to reveal the intrinsic interaction between their electrons and phonons. In particular, the flexible van der Waals stacking of different atomic crystals leads to multiple opportunities to engineer the interlayer phonon modes for EPC. Here, in hBN/WS(2) vdWH, we report the strong cross-dimensional coupling between the layer-breathing phonons well extended over tens to hundreds of layer thick vdWH and the electrons localized within the few-layer WS(2) constituent. The strength of such cross-dimensional EPC can be well reproduced by a microscopic picture through the mediation by the interfacial coupling and also the interlayer bond polarizability model in vdWHs. The study on cross-dimensional EPC paves the way to manipulate the interaction between electrons and phonons in various vdWHs by interfacial engineering for possible interesting physical phenomena.
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spelling pubmed-65467322019-06-18 Cross-dimensional electron-phonon coupling in van der Waals heterostructures Lin, Miao-Ling Zhou, Yu Wu, Jiang-Bin Cong, Xin Liu, Xue-Lu Zhang, Jun Li, Hai Yao, Wang Tan, Ping-Heng Nat Commun Article The electron-phonon coupling (EPC) in a material is at the frontier of the fundamental research, underlying many quantum behaviors. van der Waals heterostructures (vdWHs) provide an ideal platform to reveal the intrinsic interaction between their electrons and phonons. In particular, the flexible van der Waals stacking of different atomic crystals leads to multiple opportunities to engineer the interlayer phonon modes for EPC. Here, in hBN/WS(2) vdWH, we report the strong cross-dimensional coupling between the layer-breathing phonons well extended over tens to hundreds of layer thick vdWH and the electrons localized within the few-layer WS(2) constituent. The strength of such cross-dimensional EPC can be well reproduced by a microscopic picture through the mediation by the interfacial coupling and also the interlayer bond polarizability model in vdWHs. The study on cross-dimensional EPC paves the way to manipulate the interaction between electrons and phonons in various vdWHs by interfacial engineering for possible interesting physical phenomena. Nature Publishing Group UK 2019-06-03 /pmc/articles/PMC6546732/ /pubmed/31160599 http://dx.doi.org/10.1038/s41467-019-10400-z Text en © The Author(s) 2019 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
Lin, Miao-Ling
Zhou, Yu
Wu, Jiang-Bin
Cong, Xin
Liu, Xue-Lu
Zhang, Jun
Li, Hai
Yao, Wang
Tan, Ping-Heng
Cross-dimensional electron-phonon coupling in van der Waals heterostructures
title Cross-dimensional electron-phonon coupling in van der Waals heterostructures
title_full Cross-dimensional electron-phonon coupling in van der Waals heterostructures
title_fullStr Cross-dimensional electron-phonon coupling in van der Waals heterostructures
title_full_unstemmed Cross-dimensional electron-phonon coupling in van der Waals heterostructures
title_short Cross-dimensional electron-phonon coupling in van der Waals heterostructures
title_sort cross-dimensional electron-phonon coupling in van der waals heterostructures
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6546732/
https://www.ncbi.nlm.nih.gov/pubmed/31160599
http://dx.doi.org/10.1038/s41467-019-10400-z
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