Propagation of acoustic waves in a von-Kármán vortex street like configuration of disclinations

Abstract

We show that a simple model of 1D array of topological defects in a crystalline environment is able to guide acoustic waves, depending on the angle of the incident wave. We comment on a recently proposed geophysical mechanism explaining the mantle dynamics by the presence, in some crystalline materials there, of wedge disclinations.

References in corpus (4)

• Helical Metal Inside a Topological Band Insulator
• Continuum model for chiral induced spin selectivity in helical molecules
• Defect Engineering: Graphene Gets Designer Defects
• Normal modes, and acoustic properties, of an elastic solid with line defects

Cited by in corpus (3)

• Wave propagation in metamaterials mimicking the topology of a cosmic string
• Geometric theory of topological defects: methodological developments and new trends
• On the energy of topological defect lattices