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Edge effect on thermal transport in graphene nanoribbons: A phonon localization mechanism beyond edge roughness scattering
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10.1063/1.4732155
/content/aip/journal/apl/101/1/10.1063/1.4732155
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/1/10.1063/1.4732155
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Normalized cumulative thermal conductance (G) as a function of the reciprocal phonon wavelength, .

Image of FIG. 2.
FIG. 2.

(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.

Image of FIG. 3.
FIG. 3.

Cross-sectional heat flux distribution in aGNRs and zGNRs at various temperatures. The inset shows the simulation domain setup for these calculations.

Image of FIG. 4.
FIG. 4.

(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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/content/aip/journal/apl/101/1/10.1063/1.4732155
2012-07-02
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Edge effect on thermal transport in graphene nanoribbons: A phonon localization mechanism beyond edge roughness scattering
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/1/10.1063/1.4732155
10.1063/1.4732155
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