Atomic stick-slip friction as a two-dimensional thermally activated process

authored by: Quanzhou Yao, Jiawei Sun, Xiaoying Zhuang, Peter Wriggers, Xi Qiao Feng, Qunyang Li
Abstract: Widely recognized as a thermally activated process, atomic stick-slip friction has been typically explained by Prandtl-Tomlinson model with thermal activation. Despite the limited success, theoretical predictions from the classic model are primarily based on a one-dimensional (1D) assumption, which is generally not compatible with real experiments that are two-dimensional (2D) in nature. In this letter, a theoretical model based on 2D transition state theory has been derived and confirmed to be able to capture the 2D slip kinetics in atomic-scale friction experiments on crystalline surface with a hexagonal energy landscape. Moreover, we propose a reduced scheme that enables extraction of intrinsic interfacial parameters from 2D experiments approximately using the traditional 1D model. The 2D model provides a theoretical tool for understanding the rich kinetics of atomic-scale friction or other phenomena involving higher dimensional transitions.
Organisation(s): Institute of Photonics
Institute of Continuum Mechanics
External Organisation(s): Tsinghua University
Type: Article
Journal: Physical Review B
Volume: 105
ISSN: 2469-9950
Publication date: 25.04.2022
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Electronic, Optical and Magnetic Materials, Condensed Matter Physics
Electronic version(s): https://doi.org/10.1103/PhysRevB.105.165429 (Access: Closed)
: Details in the research portal "Research@Leibniz University"

BibTeX

@article{d14f62eee1294f04a091a6a938c5b7d5,
title = "Atomic stick-slip friction as a two-dimensional thermally activated process",
abstract = "Widely recognized as a thermally activated process, atomic stick-slip friction has been typically explained by Prandtl-Tomlinson model with thermal activation. Despite the limited success, theoretical predictions from the classic model are primarily based on a one-dimensional (1D) assumption, which is generally not compatible with real experiments that are two-dimensional (2D) in nature. In this letter, a theoretical model based on 2D transition state theory has been derived and confirmed to be able to capture the 2D slip kinetics in atomic-scale friction experiments on crystalline surface with a hexagonal energy landscape. Moreover, we propose a reduced scheme that enables extraction of intrinsic interfacial parameters from 2D experiments approximately using the traditional 1D model. The 2D model provides a theoretical tool for understanding the rich kinetics of atomic-scale friction or other phenomena involving higher dimensional transitions.",
author = "Quanzhou Yao and Jiawei Sun and Xiaoying Zhuang and Peter Wriggers and Feng, {Xi Qiao} and Qunyang Li",
note = "Funding Information: We gratefully acknowledge the support from the National Natural Science Foundation of China (12025203, 11772169, 11890671 and 11921002), and the State Key Laboratory of Tribology at Tsinghua University (Grant No. SKLT2022A01). ",
year = "2022",
month = apr,
day = "25",
doi = "10.1103/PhysRevB.105.165429",
language = "English",
volume = "105",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Institute of Physics",
number = "16",
}