Simkin MV, Mahan GD
Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996-1200 and and Solid State Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831, USA.
Phys Rev Lett. 2000 Jan 31;84(5):927-30. doi: 10.1103/PhysRevLett.84.927.
The phonon thermal conductivity of a multilayer is calculated for transport perpendicular to the layers. There is a crossover between particle transport for thick layers to wave transport for thin layers. The calculations show that the conductivity has a minimum value for a layer thickness somewhat smaller then the mean free path of the phonons.
计算了多层结构在垂直于层方向上的声子热导率。对于厚层，存在从粒子输运到薄层波动输运的转变。计算结果表明，对于层厚度略小于声子平均自由程的情况，热导率具有最小值。
