声子
凝聚态物理
材料科学
诺共振
反射(计算机编程)
共振(粒子物理)
散射
传输(电信)
吸收(声学)
杂质
热导率
分子物理学
光学
物理
原子物理学
光电子学
复合材料
程序设计语言
工程类
电气工程
等离子体子
量子力学
计算机科学
作者
Yuriy A. Kosevich,A. Feher,Е. С. Сыркин
摘要
The different mechanisms of resonant transport of phonons between two media in the presence of an impurity intermediate layer are described. Particular attention is focused on the resonance interaction of elastic waves with a two-dimensional defect on the contact boundary between two solids, on the multichannel interface phonon scattering, and on the experimentally observed nonmonotonic temperature dependence of the reduced heat flux. In the cases when there is a direct interaction between edge atoms of the matrix as non-nearest neighbors or when the impurities do not fill completely the 2D interface layer, an additional channel for the transmission of phonons through the interface opens. This additional transmission channel manifests itself as a transmission (or reflection or absorption) peak with an asymmetric line shape (the so-called Fano-like resonance for phonons due to interference between the two transmission channels). Some applications of the Fano-like interference phenomena in magnon heat conductivity are also discussed.
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