The phonon boundary scattering cross section at disordered crystalline interfaces: a simple model
The phonon boundary scattering cross section at disordered crystalline interfaces: a simple model
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无序晶体界面处的声子边界散射截面：一个简单模型
DOI：
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发表时间：
1990
期刊：
影响因子：
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通讯作者：
D. Kechrakos
中科院分区：
文献类型：
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作者：
D. Kechrakos
本文提出了一种研究晶体界面合金无序对声子边界散射截面影响的形式。无序区域内处理的相干势近似适应的界面几何形状。形式主义是基于t-矩阵散射理论，并允许分离的反射和透射通道的相干和非相干部分。理论发展为一个单一的声子分支模型和数值结果提出了一个简单的立方界面。
The author presents a formalism for the study of the effects of alloy disorder at crystalline interfaces on the phonon boundary scattering cross section. The disordered region is treated within the coherent potential approximation adapted to the interface geometry. The formalism is based on t-matrix scattering theory and allows for separation of the coherent and incoherent parts of the reflection and transmission channels. The theory is developed for a single-phonon-branch model and numerical results are presented for a simple cubic interface.