%0 Journal Article
%A Khomenko, A. V.
%A Prodanov, N. V.
%A Persson, Bo
%T Atomistic modelling of friction of Cu and Au nanoparticles adsorbed on graphene
%J Condensed matter physics
%V 16
%N 3
%@ 1607-324X
%C Lviv
%I Inst.
%M FZJ-2015-03795
%P 33401
%D 2013
%X We present classical molecular dynamics calculations of the behavior of copper and gold nanoparticles on a graphene sheet, sheared with a constant applied force Fa. The force Fs acting on the particle from the substrate depends on the material of the nanoparticles (Au or Cu), and exhibits a sawtooth dependency on time, which we attribute to local commensurability between the metal nanoparticle surface atomic positions with the graphene lattice. The time-averaged value of Fs (the friction force) acting on Au nanoparticles increases linearly with the contact area, having slopes close to the experimentally observable ones. A qualitative model is proposed to explain the observed results. 
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000325304200010
%R 10.5488/CMP.16.33401
%U https://juser.fz-juelich.de/record/201500