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arXiv · 1104.1570

Diameter dependence of SiGe nanowire thermal conductivity

Zhao Wang·N. Mingo
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Abstract

We theoretically compute the thermal conductivity of SiGe alloy nanowires as a function of nanowire diameter, alloy concentration, and temperature, obtaining a satisfactory quantitative agreement with experimental results. Our results account for the weaker diameter dependence of the thermal conductivity recently observed in Si$_{1-x}$Ge$_x$ nanowires ($x<0.1$), as compared to pure Si nanowires. We also present calculations in the full range of alloy concentrations, $0 \leq x \leq 1$, which may serve as a basis for comparison with future experiments on high alloy concentration nanowires.

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Zhao Wang, N. Mingo. 2011-04-08. Diameter dependence of SiGe nanowire thermal conductivity. https://doi.org/10.1063/1.3486171

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