Possible realization of a phononic tsunami in a wedge-shaped sample
Abstract
Exploiting the theory of solitons in a nonlinear elastic medium we predict a novel phenomenon called a phononic tsunami, which is characterized by the dramatic increase of the local amplitude of phonon modes. To elucidate the possible experimental detection of this phenomenon we propose to use a wedge-shaped sample in which a sharp edge serves for the emulation of the shoaling effect and such a local enhancement can be observed. Together with eigenfrequencies of transverse and longitudinal phonon modes of a system we find the characteristic dispersion relations that can be considered as a hallmark of a phononic tsunami. We justify our predictions by means of analytical calculations and numerical simulations showing a possible realization of this nonlinear effect in such a geometry. Our results provide the framework for the implementation of new kind experiments aimed at realizing and investigating a phononic tsunami phenomenon in relevant materials.
Keywords
Cite
@article{arxiv.2112.07226,
title = {Possible realization of a phononic tsunami in a wedge-shaped sample},
author = {Yuriy Yerin and Andrey Varlamov and Claudia Fasolato and Francesco Sacchetti and Paolo Postorino and Caterina Petrillo},
journal= {arXiv preprint arXiv:2112.07226},
year = {2022}
}
Comments
14 pages, 8 figures