Theoretical and experimental revision of surface acoustic waves on the (100) plane of silicon

Abstract The phase velocity dispersion of the surface acoustic waves on a basal plane of Si(100) has been calculated in the whole range of the azimuthal angle of propagation. We present a detailed description of the calculations. These calculations are compared with the experimental data obtained by...

Full description

Saved in:
Bibliographic Details
Main Authors: Alexander Tarasenko, Radim Čtvrtlík, Radim Kudělka
Format: article
Language:EN
Published: Nature Portfolio 2021
Subjects:
R
Q
Online Access:https://doaj.org/article/c1c0d542bf6b4807ad551b84da1a0d14
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Abstract The phase velocity dispersion of the surface acoustic waves on a basal plane of Si(100) has been calculated in the whole range of the azimuthal angle of propagation. We present a detailed description of the calculations. These calculations are compared with the experimental data obtained by a laser acoustic method. Our data convincingly demonstrate the existence of a gap in the spectrum of the phase velocities. The gap means that in a definite range of the phase velocities the SAWs are absent in the whole interval of the azimuthal angles. There is an excellent coincidence between the numerical and experimental data.