Surface roughness of gold substrates at the nanoscale: An atomistic simulation study

Soheil Solhjoo, Antonis I. Vakis*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

8 Citations (Scopus)
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Abstract

The statistical properties of rough surfaces at the nanoscale are studied using classical molecular dynamics. Atomistic fcc blocks of gold are generated with different crystal orientations, and with rough surfaces having the same root-mean-square roughness with variable power spectral density (PSD) slopes and roll-off wavenumbers. The process of rough surface generation may result in thermodynamically unstable sharp spatial features. In order to relax the structure, the blocks are equilibrated at 300 K. It is found that all surfaces experience changes in their roughness, regardless of their crystal orientation or temperature, although the changes are only temperature independent when T

Original languageEnglish
Pages (from-to)165-178
Number of pages14
JournalTribology International
Volume115
Early online date20-May-2017
DOIs
Publication statusPublished - Nov-2017

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