论文标题
在远程声子散射上
On Remote Phonon Scattering
论文作者
论文摘要
极性声子可以在相邻层中诱导电场，无论是非极性还是极性，产生了电子的远程声子散射。远程声子散射的处理是基于介电连续模型的，该模型仅考虑了电边界条件。我们表明，在没有分散的情况下，极性模式满足机械和电边界条件的晶体无法引入远程声子效应。此外，即使存在分散，由于满足机械边界条件的必要性，远程声子效应也可以忽略不计。
Polar phonons can induce electric fields in an adjacent layer, whether non-polar or polar, producing remote phonon scattering of electrons. Treatment of remote phonon scattering has been based on the dielectric continuum model which takes only the electrical boundary conditions into account. We show that crystals whose polar modes satisfy both mechanical and electric boundary conditions cannot introduce remote phonon effects in the absence of dispersion. Further, even in the presence of dispersion, remote phonon effects are negligible, as a consequence of the necessity of satisfying mechanical boundary conditions.
