Abstract
In the study, we introduced the local mean free path of phonons with boundary effects. The local thermal conductivity distribution from boundary to film bulk region was obtained, and the boundary scattering effect was examined by introducing a phonon Knudsen layer thickness. We calculated the ratio of effective thermal conductivity to the bulk one and the results are in agreement with available data.
| Original language | English |
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| Article number | 046102 |
| Journal | Journal of Applied Physics |
| Volume | 110 |
| Issue number | 4 |
| DOIs | |
| State | Published - 15 Aug 2011 |