Abstract
We show how the snowflake phononic crystal structure, which recently has been realized experimentally, can be turned into a topological insulator for mechanical waves. This idea, based purely on simple geometrical modifications, could be readily implemented on the nanoscale.
- Received 22 February 2017
- Corrected 9 March 2018
DOI:https://doi.org/10.1103/PhysRevB.97.020102
©2018 American Physical Society
Physics Subject Headings (PhySH)
Corrections
9 March 2018
Correction: The first sentence of the abstract contained a word that was typeset erroneously and has been corrected.
Synopsis
Snowflake Topological Insulator
Published 18 January 2018
A two-dimensional array of holes shaped like snowflakes could route acoustic waves along an internal edge without any wave backscattering.
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