Continuum elastic modeling of graphene resonators
Artikel i vetenskaplig tidskrift, 2008

Starting from an atomistic approach, we have derived a hierarchy of successively more simplified continuum elasticity descriptions for modeling the mechanical properties of suspended graphene sheets. We find that already for deflections of the order of 0.5 Å a theory that correctly accounts for nonlinearities is necessary and that for many purposes a set of coupled Duffing-type equations may be used to accurately describe the dynamics of graphene membranes. The descriptions are validated by applying them to square graphene-based resonators with clamped edges and studying numerically their mechanical responses. Both static and dynamic responses are treated, and we find good agreement with recent experimental findings.

resonator

NEMS

Graphene

Författare

Juan Atalaya

Chalmers, Teknisk fysik, Kondenserade materiens teori

Andreas Isacsson

Chalmers, Teknisk fysik, Kondenserade materiens teori

Jari Kinaret

Chalmers, Teknisk fysik, Kondenserade materiens teori

Nano Letters

1530-6984 (ISSN) 1530-6992 (eISSN)

Vol. 8 4196-4200

Styrkeområden

Nanovetenskap och nanoteknik

Ämneskategorier

Övrig annan teknik

Den kondenserade materiens fysik