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|Title:||Isotopic effects on the thermal conductivity of graphene nanoribbons: Localization mechanism|
|Authors:||Jiang, J.-W. |
|Citation:||Jiang, J.-W., Lan, J., Wang, J.-S., Li, B. (2010). Isotopic effects on the thermal conductivity of graphene nanoribbons: Localization mechanism. Journal of Applied Physics 107 (5) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.3329541|
|Abstract:||Thermal conductivity of graphene nanoribbons (GNR) with length 106 Å and width 4.92 Å after isotopic doping is investigated by molecular dynamics with quantum correction. Two interesting phenomena are found, (1) isotopic doping reduces thermal conductivity effectively in low doping region, and the reduction slows down in high doping region, (2) thermal conductivity increases with increasing temperature in both pure and doped GNR, but the increasing behavior is much more slow in the doped GNR than that in pure ones. Further studies reveal that the physics of these two phenomena is related to the localized phonon modes, whose number increases quickly (slowly) with increasing isotopic doping in low (high) isotopic doping region. © 2010 American Institute of Physics.|
|Source Title:||Journal of Applied Physics|
|Appears in Collections:||Staff Publications|
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