Physics – Condensed Matter – Materials Science
Scientific paper
2009-03-04
Physics
Condensed Matter
Materials Science
15 pages, 5 figures. Accepted for publication in Nano Letters
Scientific paper
10.1021/nl802853e
We utilize classical molecular dynamics simulations to investigate the intrinsic loss mechanisms of monolayer graphene nanoresonators undergoing flexural oscillations. We find that spurious edge modes of vibration, which arise not due to externally applied stresses but intrinsically due to the different vibrational properties of edge atoms, are the dominant intrinsic loss mechanism that reduces the Q-factors. We additionally find that while hydrogen passivation of the free edges is ineffective in reducing the spurious edge modes, fixing the free edges is critical to removing the spurious edge-induced vibrational states. Our atomistic simulations also show that the Q-factor degrades inversely proportional to temperature; furthermore, we also demonstrate that the intrinsic losses can be reduced significantly across a range of operating temperatures through the application of tensile mechanical strain.
Kim Sung Youb
Park Harold S.
No associations
LandOfFree
The Importance of Edge Effects on the Intrinsic Loss Mechanisms of Graphene Nanoresonators does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Importance of Edge Effects on the Intrinsic Loss Mechanisms of Graphene Nanoresonators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Importance of Edge Effects on the Intrinsic Loss Mechanisms of Graphene Nanoresonators will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-369817