Atomic stick-slip friction as a two-dimensional thermally activated process
- verfasst von
- 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.
- Organisationseinheit(en)
-
Institut für Photonik
Institut für Kontinuumsmechanik
- Externe Organisation(en)
-
Tsinghua University
- Typ
- Artikel
- Journal
- Physical Review B
- Band
- 105
- ISSN
- 2469-9950
- Publikationsdatum
- 25.04.2022
- Publikationsstatus
- Veröffentlicht
- Peer-reviewed
- Ja
- ASJC Scopus Sachgebiete
- Elektronische, optische und magnetische Materialien, Physik der kondensierten Materie
- Elektronische Version(en)
-
https://doi.org/10.1103/PhysRevB.105.165429 (Zugang:
Geschlossen)
