%0 Journal Article
%A Verbiest, G. J.
%A Stampfer, Christoph
%A Huber, S. E.
%A Andersen, M.
%A Reuter, K.
%T Interplay between nanometer-scale strain variations and externally applied strain in graphene
%J Physical review / B
%V 93
%N 19
%@ 2469-9950
%C Woodbury, NY
%I Inst.
%M FZJ-2017-02573
%P 195438
%D 2016
%X We present a molecular modeling study analyzing nanometer-scale strain variations in graphene as a function of externally applied tensile strain. We consider two different mechanisms that could underlie nanometer-scale strain variations: static perturbations from lattice imperfections of an underlying substrate and thermal fluctuations. For both cases we observe a decrease in the out-of-plane atomic displacements with increasing strain, which is accompanied by an increase in the in-plane displacements. Reflecting the nonlinear elastic properties of graphene, both trends together yield a nonmonotonic variation of the total displacements with increasing tensile strain. This variation allows us to test the role of nanometer-scale strain variations in limiting the carrier mobility of high-quality graphene samples.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000376637700004
%R 10.1103/PhysRevB.93.195438
%U https://juser.fz-juelich.de/record/828681