Details
| Original language | English |
|---|---|
| Article number | 165429 |
| Journal | Physical Review B |
| Volume | 105 |
| Issue number | 16 |
| Publication status | Published - 25 Apr 2022 |
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.
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
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In: Physical Review B, Vol. 105, No. 16, 165429, 25.04.2022.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Atomic stick-slip friction as a two-dimensional thermally activated process
AU - Yao, Quanzhou
AU - Sun, Jiawei
AU - Zhuang, Xiaoying
AU - Wriggers, Peter
AU - Feng, Xi Qiao
AU - Li, Qunyang
N1 - 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).
PY - 2022/4/25
Y1 - 2022/4/25
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85129391418&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.105.165429
DO - 10.1103/PhysRevB.105.165429
M3 - Article
AN - SCOPUS:85129391418
VL - 105
JO - Physical Review B
JF - Physical Review B
SN - 2469-9950
IS - 16
M1 - 165429
ER -