Figure 7
From: Phononic Fano resonances in graphene nanoribbons with local defects
(a) Dispersion curves (2N e in total) of the in-plane oscillations of an armchair nanoribbon. Number of atoms in the elementary cell is N e  = 22. (b) Transmission coefficient T vs. wavenumber q for each dispersion curve (j stands for the sequential number of a dispersion curve) for phonons scattered by the double vacancy V2(585). The average transmission coefficient of such phonons is \(\bar{T}=0.445\). Horizontal dashed straight lines mark the eigenfrequencies of the in-plane localized vibrations of the defect.
