Ballistic Thermal Conduction across Acoustically Mismatched Solid Junctions
| dc.creator | Wang, Jian | |
| dc.creator | Wang, Jian-Sheng | |
| dc.date | 2005-05-17 | |
| dc.date.accessioned | 2026-07-25T23:28:31Z | |
| dc.description | We derive expressions for energy flow in terms of lattice normal mode coordinates and energy transmission involving reduced group velocities. With a version of Landauer formula appropriate for lattice dynamic approach, the phonon transmission coefficients and thermal conductance are calculated for two kinds of acoustically mismatched junctions: different chirality nanotubes (11,0) to (8,0), and Si-Ge superlattice structure. Our calculation shows a mode-dependent transmission in nanotube junction and a resonantly modulated ballistic thermal conductance in superlattice. The superlattice result suggests a new interpretation of the experimental data. Our approach provides an atomistic way for the calculation of thermal conduction in nanostructure. | |
| dc.description | 4 pages with 4 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0505401 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0505401 | |
| dc.identifier.uri | https://dspace.dare.co.zw/handle/123456789/98687 | |
| dc.subject | Statistical Mechanics | |
| dc.title | Ballistic Thermal Conduction across Acoustically Mismatched Solid Junctions | |
| dc.type | text |