Figure 3 .

Resonance behavior of graphene in nonlinear oscillation. (a) Resonance curves of a graphene resonator (with its size of D = 250 nm) as a function of actuation amplitude p0. (b) Dimensionless parameter θ, which represents the degree of nonlinearity in the vibration of a graphene resonator, as a function of actuation amplitude p0.

Dai et al. Nanoscale Research Letters 2012 7:499   doi:10.1186/1556-276X-7-499
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