https://doi.org/10.1140/epjb/s10051-024-00727-y
Regular Article - Mesoscopic and Nanoscale Systems
Effects of ballistic transport on the thermal resistance and temperature profile in nanowires
1
Bharti School of Engineering and Computer Science, Laurentian University, 935 Ramsey Lake Road, P3E 2C6, Sudbury, ON, Canada
2
, Sudbury, ON, Canada
Received:
5
April
2024
Accepted:
7
June
2024
Published online:
24
June
2024
Effects of ballistic transport on the temperature profiles and thermal resistance in nanowires are studied. Computer simulations of nanowires between a heat source and a heat sink have shown that in the middle of such wires the temperature gradient is reduced compared to Fourier’s law with steep gradients close to the heat source and sink. In this work, results from molecular dynamics and phonon Monte Carlo simulations of the heat transport in nanowires are compared to a radiator model which predicts a reduced gradient with discrete jumps at the wire ends. The comparison shows that for wires longer than the typical mean free path of phonons the radiator model is able to account for ballistic transport effects. The steep gradients at the wire ends are then continuous manifestations of the discrete jumps in the model.
The original online version of this article was revised: the following Code Availability Statement has been removed: “Code Availability Statement: My manuscript has no associated code/software. [Author’s comment: The code used for the phonon Monte Carlo simulations will be made available upon reasonable request.]”. This statement was introduced by mistake during the production process.
A correction to this article is available online at https://doi.org/10.1140/epjb/s10051-024-00744-x.
Copyright comment corrected publication 2024
© The Author(s) 2024. corrected publication 2024
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