On the low-temperature lattice thermal transport in nanowires

Details On the low-temperature lattice thermal transport in nanowires On the low-temperature lattice thermal transport in nanowires

2004-05-24

arxiv.org/abs/cond-mat/0405560v1

Physics

Condensed Matter

Statistical Mechanics

12 pages, 3 eps figures

Scientific paper

10.1134/1.1914879

We propose a theory of low temperature thermal transport in nano-wires in the regime where a competition between phonon and flexural modes governs the relaxation processes. Starting with the standard kinetic equations for two different types of quasiparticles we derive a general expression for the coefficient of thermal conductivity. The underlying physics of thermal conductance is completely determined by the corresponding relaxation times, which can be calculated directly for any dispersion of quasiparticles depending on the size of a system. We show that if the considered relaxation mechanism is dominant, then at small wire diameters the temperature dependence of thermal conductivity experiences a crossover from $T^{1/2}$ to $T^3$-dependence. Quantitative analysis shows reasonable agreement with resent experimental results.

Affiliated with

Also associated with

No associations

Rating

On the low-temperature lattice thermal transport in nanowires does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with On the low-temperature lattice thermal transport in nanowires, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the low-temperature lattice thermal transport in nanowires will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-711983