Size-dependent thermal conductivity of nanoscale semiconducting systems
Abstract
We study the size dependence of thermal conductivity in nanoscale semiconducting systems. An analytical formula including the surface scattering and the size confinement effects of phonon transport is derived. The theoretical formula gives good agreements with the existing experimental data for Si and GaAs nanowires and thin films.
- Publication:
-
Physical Review B
- Pub Date:
- April 2006
- DOI:
- 10.1103/PhysRevB.73.153303
- arXiv:
- arXiv:cond-mat/0603233
- Bibcode:
- 2006PhRvB..73o3303L
- Keywords:
-
- 68.65.-k;
- 44.10.+i;
- 65.80.+n;
- 66.70.+f;
- Low-dimensional mesoscopic and nanoscale systems: structure and nonelectronic properties;
- Heat conduction;
- Thermal properties of small particles nanocrystals and nanotubes;
- Nonelectronic thermal conduction and heat-pulse propagation in solids;
- thermal waves;
- Condensed Matter - Materials Science;
- Condensed Matter - Disordered Systems and Neural Networks
- E-Print:
- Revtex, 3 eps figures. To appear in Phys. Rev. B