Details
| Original language | English |
|---|---|
| Article number | 15364 |
| Journal | Nature Communications |
| Volume | 8 |
| Publication status | Published - 15 May 2017 |
| Externally published | Yes |
Abstract
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.
ASJC Scopus subject areas
- Chemistry(all)
- General Chemistry
- Biochemistry, Genetics and Molecular Biology(all)
- General Biochemistry,Genetics and Molecular Biology
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Nature Communications, Vol. 8, 15364, 15.05.2017.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Probing nanofriction and Aubry-type signatures in a finite self-organized system
AU - Kiethe, J.
AU - Nigmatullin, R.
AU - Kalincev, D.
AU - Schmirander, T.
AU - Mehlstäubler, T. E.
PY - 2017/5/15
Y1 - 2017/5/15
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85019641169&partnerID=8YFLogxK
U2 - 10.1038/ncomms15364
DO - 10.1038/ncomms15364
M3 - Article
C2 - 28504271
AN - SCOPUS:85019641169
VL - 8
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
M1 - 15364
ER -