Degenerate Reflections in Acoustics of Solids. III: Cubic Crystals

Particular cases of reflection of bulk acoustic waves from a free surface of cubic crystal, when both the plane of incidence and the crystal surface are symmetry planes, to which the polarization vectors of incident and reflected waves are parallel, have been analyzed. The conditions under which onl...

Full description

Saved in:
Bibliographic Details
Published inCrystallography reports Vol. 65; no. 6; pp. 947 - 952
Main Authors Bessonov, D. A., Lyubimov, V. N.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.11.2020
Subjects
Crystallography and Scattering Methods
Physical Properties of Crystals
Physics
Physics and Astronomy
Online AccessGet full text

Cover

More Information
Summary:Particular cases of reflection of bulk acoustic waves from a free surface of cubic crystal, when both the plane of incidence and the crystal surface are symmetry planes, to which the polarization vectors of incident and reflected waves are parallel, have been analyzed. The conditions under which only a single bulk reflected wave (rather than two as generally) is formed at reflection are described. The accompanied reflected wave (bulk or localized) disappears, so that the reflection turns out degenerate. Either a pure reflection (the incident and reflected waves belong to the same acoustic branch) or a conversion reflection (the given waves belong to different branches) are formed.
ISSN:1063-7745
1562-689X
DOI:10.1134/S1063774520060073