Cargando…
Probing nanofriction and Aubry-type signatures in a finite self-organized system
Friction in ordered atomistic layers plays a central role in various nanoscale systems ranging from nanomachines to biological systems. It governs transport properties, wear and dissipation. Defects and incommensurate lattice constants markedly change these properties. Recently, experimental systems...
Autores principales: | , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2017
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5440669/ https://www.ncbi.nlm.nih.gov/pubmed/28504271 http://dx.doi.org/10.1038/ncomms15364 |
_version_ | 1783238107273887744 |
---|---|
author | Kiethe, J. Nigmatullin, R. Kalincev, D. Schmirander, T. Mehlstäubler, T. E. |
author_facet | Kiethe, J. Nigmatullin, R. Kalincev, D. Schmirander, T. Mehlstäubler, T. E. |
author_sort | Kiethe, J. |
collection | PubMed |
description | Friction in ordered atomistic layers plays a central role in various nanoscale systems ranging from nanomachines to biological systems. It governs transport properties, wear and dissipation. Defects and incommensurate lattice constants markedly change these properties. Recently, experimental systems have become accessible to probe the dynamics of nanofriction. Here, we present a model system consisting of laser-cooled ions in which nanofriction and transport processes in self-organized systems with back action can be studied with atomic resolution. We show that in a system with local defects resulting in incommensurate layers, there is a transition from sticking to sliding with Aubry-type signatures. We demonstrate spectroscopic measurements of the soft vibrational mode driving this transition and a measurement of the order parameter. We show numerically that both exhibit critical scaling near the transition point. Our studies demonstrate a simple, well-controlled system in which friction in self-organized structures can be studied from classical- to quantum-regimes. |
format | Online Article Text |
id | pubmed-5440669 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-54406692017-06-02 Probing nanofriction and Aubry-type signatures in a finite self-organized system Kiethe, J. Nigmatullin, R. Kalincev, D. Schmirander, T. Mehlstäubler, T. E. Nat Commun Article Friction in ordered atomistic layers plays a central role in various nanoscale systems ranging from nanomachines to biological systems. It governs transport properties, wear and dissipation. Defects and incommensurate lattice constants markedly change these properties. Recently, experimental systems have become accessible to probe the dynamics of nanofriction. Here, we present a model system consisting of laser-cooled ions in which nanofriction and transport processes in self-organized systems with back action can be studied with atomic resolution. We show that in a system with local defects resulting in incommensurate layers, there is a transition from sticking to sliding with Aubry-type signatures. We demonstrate spectroscopic measurements of the soft vibrational mode driving this transition and a measurement of the order parameter. We show numerically that both exhibit critical scaling near the transition point. Our studies demonstrate a simple, well-controlled system in which friction in self-organized structures can be studied from classical- to quantum-regimes. Nature Publishing Group 2017-05-15 /pmc/articles/PMC5440669/ /pubmed/28504271 http://dx.doi.org/10.1038/ncomms15364 Text en Copyright © 2017, 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 Kiethe, J. Nigmatullin, R. Kalincev, D. Schmirander, T. Mehlstäubler, T. E. Probing nanofriction and Aubry-type signatures in a finite self-organized system |
title | Probing nanofriction and Aubry-type signatures in a finite self-organized system |
title_full | Probing nanofriction and Aubry-type signatures in a finite self-organized system |
title_fullStr | Probing nanofriction and Aubry-type signatures in a finite self-organized system |
title_full_unstemmed | Probing nanofriction and Aubry-type signatures in a finite self-organized system |
title_short | Probing nanofriction and Aubry-type signatures in a finite self-organized system |
title_sort | probing nanofriction and aubry-type signatures in a finite self-organized system |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5440669/ https://www.ncbi.nlm.nih.gov/pubmed/28504271 http://dx.doi.org/10.1038/ncomms15364 |
work_keys_str_mv | AT kiethej probingnanofrictionandaubrytypesignaturesinafiniteselforganizedsystem AT nigmatullinr probingnanofrictionandaubrytypesignaturesinafiniteselforganizedsystem AT kalincevd probingnanofrictionandaubrytypesignaturesinafiniteselforganizedsystem AT schmirandert probingnanofrictionandaubrytypesignaturesinafiniteselforganizedsystem AT mehlstaublerte probingnanofrictionandaubrytypesignaturesinafiniteselforganizedsystem |