Work

Stick-slip friction at the atomic scale: A model for van der Waals epitaxial strain

Year: 2025

Type: article

Abstract: It has been demonstrated experimentally that friction forces between a two-dimensional (2D) material and an amorphous substrate are sufficient to stabilize tensile and compressive strains on the order of 1% within the 2D material. Here, a simple atomic-scale model is used to explore the friction between a 2D material and an idealized substrate. The atomic-scale model shows that the observed strains can be sustained by bonds with strengths on the order of van der Waals bonds. The model also reveals interesting atomic-scale structures at the interface that include vortices, antivortices, and other more complicated structures.

Source: Physical Review Research

DOI: 10.1103/kzyy-7b15

Authors: Ji Guo, Humberto Batiz, Joel W. Ager, Ali Javey, D. C. Chrzan

Institutions: Lawrence Berkeley National Laboratory, University of California, Berkeley

Language: English

Topic: Force Microscopy Techniques and Applications

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,625

Funders: Materials Sciences and Engineering Division, U.S. Department of Energy, Office of Science, Basic Energy Sciences