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Kim, Sung Youb
Computational Advanced Nanomechanics (CAN) Lab
Research Interests
  • Computational Mechanics
  • Nanomechanics
  • Molecular Dynamics
  • FEM

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Multilayer friction and attachment effects on energy dissipation in graphene nanoresonators

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Title
Multilayer friction and attachment effects on energy dissipation in graphene nanoresonators
Author
Kim, Sung YoubPark, Harold S.
Keywords
friction; graphene; molecular dynamics method; multilayers; nanoelectronics; Q-factor; resonators; van der Waals forces
Issue Date
2009-03
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v.94, no.10, pp.1 - 3
Abstract
We utilize classical molecular dynamics to study the effects of intrinsic, interlayer friction between graphene monolayers, as well as extrinsic attachment or clamping strength between graphene and a model silicon substrate on the energy dissipation (Q -factors) of oscillating graphene nanoresonators. Both interlayer friction and attachment effects are found to significantly degrade the graphene Q -factors, with an increase in energy dissipation with increasing temperature, while both effects are found to be strongly dependent on the strength of the van der Waals interactions, either between adjacent layers of graphene or between graphene and the underlying substrate.
URI
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DOI
10.1063/1.3099932
ISSN
0003-6951
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