Elastic interface acoustic waves in twinned crystals

Abstract

A new type of Interface Acoustic Waves (IAW) is presented, for single-crystal orthotropic twins bonded symmetrically along a plane containing only one common crystallographic axis. The effective boundary conditions show that the waves are linearly polarized at the interface, either transversally or longitudinally. Then the secular equation is obtained in full analytical form using new relationships for the displacement-traction quadrivector at the interface. For Gallium Arsenide and for Silicon, it is found that the IAWs with transverse (resp. longitudinal) polarization at the interface are of the Stoneley (resp. leaky) type.

References in corpus (2)

• The explicit secular equation for surface acoustic waves in monoclinic elastic crystals
• Rayleigh waves in symmetry planes of crystals: explicit secular equations and some explicit wave speeds

Cited by in corpus (6)

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• Explicit secular equations for piezoacoustic surface waves: Shear-Horizontal modes
• Piezoelectric Love waves on rotated Y-cut mm2 substrates
• Explicit secular equation for Scholte waves over a monoclinic crystal
• On interface waves in misoriented pre-stressed incompressible elastic solids
• Explicit secular equations for piezoacoustic surface waves: Rayleigh modes