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Nonlinear thermal conductance in single-wall carbon nanotubes: Negative differential thermal resistance
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10.1063/1.4776229
/content/aip/journal/jcp/138/3/10.1063/1.4776229
http://aip.metastore.ingenta.com/content/aip/journal/jcp/138/3/10.1063/1.4776229
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic diagram of the CNTs coupling with two heat baths. The two ends along the length are fixed. T L = 400 K and T R is varied.

Image of FIG. 2.
FIG. 2.

(a) Thermal current J as a function of temperature difference ΔT for different values of τ. (b) Dependence of thermal current on the relax time τ with T R = 355 K. The other parameters are l = 8 nm, N = 3N C = 21, and T L = 400 K.

Image of FIG. 3.
FIG. 3.

(a) Thermal current J as a function of temperature difference ΔT for different values of N. (b) Dependence of thermal current on N with T R = 355 K. The other parameters are l = 8 nm, τ = 1 ps, and T L = 400 K.

Image of FIG. 4.
FIG. 4.

Thermal current J as a function of the temperature difference ΔT for different diameters of the zigzag CNTs. The diameter d = 0.544 nm for chirality(7,0), d = 0.777 nm for chirality(10,0), d = 1.090 nm for chirality(14,0), d = 1.63 nm for chirality(21,0). The other parameters are l = 8 nm, T L = 400 K, and T R is varied.

Image of FIG. 5.
FIG. 5.

The effective thermal conductivity κ and ΔT as a function of the temperature difference ΔT for different diameters. (a) Chirality(7,0). (b) Chirality(10,0). The other parameters are l = 8 nm, T L = 400 K, and T R is varied.

Image of FIG. 6.
FIG. 6.

Thermal current J as a function of the temperature difference ΔT for different lengths of the zigzag CNT. The other parameter are d = 0.544 nm, T L = 400 K, and T R is varied.

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/content/aip/journal/jcp/138/3/10.1063/1.4776229
2013-01-18
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Nonlinear thermal conductance in single-wall carbon nanotubes: Negative differential thermal resistance
http://aip.metastore.ingenta.com/content/aip/journal/jcp/138/3/10.1063/1.4776229
10.1063/1.4776229
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