Volume 85, Number 4, February 2009
|Number of page(s)||4|
|Section||Condensed Matter: Structural, Mechanical and Thermal Properties|
|Published online||10 March 2009|
Rippling of graphene
Center for Nonlinear Dynamics and Department of Physics, The University of Texas at Austin - Austin, TX, USA
Corresponding author: firstname.lastname@example.org
Accepted: 9 February 2009
We show that ripples observed in free-standing graphene sheets can be explained as a consequence of adsorbed OH molecules sitting on random sites. The adsorbates cause the bonds between carbon atoms to lengthen slightly. Static buckles then result from a mechanism like the one that leads to buckling of leaves. Buckles caused by roughly 20% coverage of adsorbates are consistent with experimental observations.
PACS: 62.20.mq – Buckling / 63.22.Dc – Free films / 68.35.Ct – Interface structure and roughness
© EPLA, 2009
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