Rayleigh wave attenuation due to scattering by stationary defects

Abstract

We obtain expressions for the energy spectrum widths of Rayleigh waves arising because of their scattering by point and distributed defects of the surface, as well as by the edge dislocations on the surface and by the grooves of a random lattice in the surface plane. The calculations are valid when the defect density is small. Under certain conditions, our results coincide with the results of other authors who studied the scattering of Rayleigh waves by point defects and by the grooves of a random lattice. The calculations are based on the Keldysh diagram technique modified for the case of semibounded media.

Rayleigh wave through half space semiconductor solid with temperature dependent properties

“…Defects and impurities in semiconductors can have a significant effect on the elastic properties of the material, which in turn can affect the propagation of Rayleigh waves. For example, the presence of defects can lead to scattering of the Rayleigh waves, which can result in a reduction in the amplitude of the waves as they propagate [23]. The presence of external stresses and strains can also affect the propagation of Rayleigh waves in a semi-conductor solid.…”

“…The system of homogeneous equations from(20)(21)(22)(23) by equating the determinant of u * , w * , T * and N * to zero. We obtain the equation in m 2 as,…”