Scientific Reports (Feb 2021)

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

  • Alexander Tarasenko,
  • Radim Čtvrtlík,
  • Radim Kudělka

DOI
https://doi.org/10.1038/s41598-021-82211-6
Journal volume & issue
Vol. 11, no. 1
pp. 1 – 8

Abstract

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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.