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Modified interactions of longitudinal phonon-plasmon in magnetized piezoelectric semiconductor plasmas

机译:磁化压电半导体等离子体中纵向声子-等离子体的相互作用

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摘要

A comprehensive investigation of excitation of new electro-acoustic modes and novel properties introduced due to presence of negatively charged colloids in magnetized n-type piezoelectric semiconductor plasma is made analytically. By employing the multi-fluid balance equations along with the elastic and Maxwell's equations, a compact dispersion relation for the cases in which colloidal grains are either robust (partial derivative(0d) = 0) or dynamic is derived. This dispersion relation is used to study wave phenomena and acoustic mode instabilities analytically. We find important modifications in the acoustic wave branch as well as the existence of new mode labeled as colloids induced acoustic mode in the medium. The results of this investigation should be useful in understanding the properties of interactions of longitudinal phonon-plasmon in colloids laden n-type semiconductor plasmas whose main constituents are electrons and negatively charged colloids. (C) 2004 Elsevier B.V. All rights reserved.
机译:通过分析,对磁化的n型压电半导体等离子体中由于带负电胶体的存在而引起的新电声模式的激发和引入的新特性进行了全面研究。通过将多流体平衡方程式与弹性方程式和麦克斯韦方程式一起使用,得出了胶体颗粒具有鲁棒性(偏导数(0d)= 0)或动态的情况下的紧凑色散关系。该色散关系用于分析波现象和声学模式不稳定性。我们发现在声波分支中有重要的修改,以及在介质中标记为胶体感应声模的新模式的存在。该研究的结果应有助于理解纵向声子-等离子体激元在胶体中负载的n型半导体等离子体的相互作用特性,该等离子体主要成分是电子和带负电的胶体。 (C)2004 Elsevier B.V.保留所有权利。

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