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Normalized cumulative thermal conductance (G) as a function of the reciprocal phonon wavelength, .
(a) and (b) The κ of aGNRs and zGNRs at different T (width = 4 nm) and for different GNR widths (T = 300 K). 15 independent simulations are performed to account for the statistical fluctuation of the MD results. The inset shows how aGNR and zGNR are cut from graphene.
Cross-sectional heat flux distribution in aGNRs and zGNRs at various temperatures. The inset shows the simulation domain setup for these calculations.
(a) and (b) The vDOS and the phonon participation ratio of a bulk graphene, aGNR, and zGNR. (c) The spatial distribution (Φ) of modes within for aGNR and zGNRs, and for graphene. The height in (c) corresponds to the magnitude of localization at that position (x,y).
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