NEMS With Broken T Symmetry: Graphene Based Unidirectional Acoustic Transmission Lines

In this work we discuss the idea of one-way acoustic signal isolation in low dimensional nanoelectromechanical oscillators. We report a theoretical study showing that one-way conversion between in-phase and anti-phase vibrational modes of a double layer graphene nanoribbon is achieved by introducing...

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Autores principales: Zanjani, Mehdi B., Davoyan, Arthur R., Engheta, Nader, Lukes, Jennifer R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4438717/
https://www.ncbi.nlm.nih.gov/pubmed/25993637
http://dx.doi.org/10.1038/srep09926
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author Zanjani, Mehdi B.
Davoyan, Arthur R.
Engheta, Nader
Lukes, Jennifer R.
author_facet Zanjani, Mehdi B.
Davoyan, Arthur R.
Engheta, Nader
Lukes, Jennifer R.
author_sort Zanjani, Mehdi B.
collection PubMed
description In this work we discuss the idea of one-way acoustic signal isolation in low dimensional nanoelectromechanical oscillators. We report a theoretical study showing that one-way conversion between in-phase and anti-phase vibrational modes of a double layer graphene nanoribbon is achieved by introducing spatio-temporal modulation of system properties. The required modulation length in order to reach full conversion between the two modes is subsequently calculated. Generalization of the method beyond graphene nanoribbons and realization of a NEMS signal isolator are also discussed.
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spelling pubmed-44387172015-05-29 NEMS With Broken T Symmetry: Graphene Based Unidirectional Acoustic Transmission Lines Zanjani, Mehdi B. Davoyan, Arthur R. Engheta, Nader Lukes, Jennifer R. Sci Rep Article In this work we discuss the idea of one-way acoustic signal isolation in low dimensional nanoelectromechanical oscillators. We report a theoretical study showing that one-way conversion between in-phase and anti-phase vibrational modes of a double layer graphene nanoribbon is achieved by introducing spatio-temporal modulation of system properties. The required modulation length in order to reach full conversion between the two modes is subsequently calculated. Generalization of the method beyond graphene nanoribbons and realization of a NEMS signal isolator are also discussed. Nature Publishing Group 2015-05-20 /pmc/articles/PMC4438717/ /pubmed/25993637 http://dx.doi.org/10.1038/srep09926 Text en Copyright © 2015, Macmillan Publishers Limited 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
Zanjani, Mehdi B.
Davoyan, Arthur R.
Engheta, Nader
Lukes, Jennifer R.
NEMS With Broken T Symmetry: Graphene Based Unidirectional Acoustic Transmission Lines
title NEMS With Broken T Symmetry: Graphene Based Unidirectional Acoustic Transmission Lines
title_full NEMS With Broken T Symmetry: Graphene Based Unidirectional Acoustic Transmission Lines
title_fullStr NEMS With Broken T Symmetry: Graphene Based Unidirectional Acoustic Transmission Lines
title_full_unstemmed NEMS With Broken T Symmetry: Graphene Based Unidirectional Acoustic Transmission Lines
title_short NEMS With Broken T Symmetry: Graphene Based Unidirectional Acoustic Transmission Lines
title_sort nems with broken t symmetry: graphene based unidirectional acoustic transmission lines
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4438717/
https://www.ncbi.nlm.nih.gov/pubmed/25993637
http://dx.doi.org/10.1038/srep09926
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