Journal Article

FZJ-2026-03106

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Brownian friction dynamics: Fluctuations in sliding distance

Xu, R. (Corresponding author)FZJ* ; Zhou, F. ; Persson, B.FZJ*

2024
Inst. Woodbury, NY

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Please use a persistent id in citations: doi:10.1103/PhysRevE.110.L062801  doi:10.34734/FZJ-2026-03106

Abstract: We have studied the fluctuation (noise) in the position of sliding blocks under constant driving forces on different substrate surfaces. The experimental data are complemented by simulations using a simple spring-block model where the asperity contact regions are modeled by miniblocks connected to the big block by viscoelastic springs. The miniblocks experience forces that fluctuate randomly with the lateral position, simulating the interaction between asperities on the block and the substrate. The theoretical model provides displacement power spectra that agree well with the experimental results.

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Contributing Institute(s):

1. Quanten-Theorie der Materialien (PGI-1)

Research Program(s):

1. 5211 - Topological Matter (POF4-521) (POF4-521)

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