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Topological guiding of elastic waves in phononic metamaterials based on 2D pentamode structures

Guo, Yuning and Dekorsy, Thomas and Hettich, Mike (2017) Topological guiding of elastic waves in phononic metamaterials based on 2D pentamode structures. Scientific Reports, 7, pp. 1-7. Nature Publishing Group. DOI: 10.1038/s41598-017-18394-8 ISSN 2045-2322

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Official URL: http://www.nature.com/articles/s41598-017-18394-8

Abstract

A topological state with protected propagation of elastic waves is achieved by appropriately engineering a phononic metamaterial based on 2D pentamode structures in silicon. Gapless edge states in the designed structure, which are characterized by pseudospin-dependent transport, provide backscattering-immune propagation of the elastic wave along bend paths. The role of the states responsible for forward and backward transfer can be interchanged by design.

Item URL in elib:https://elib.dlr.de/117947/
Document Type:Article
Title:Topological guiding of elastic waves in phononic metamaterials based on 2D pentamode structures
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Guo, YuningKonstanz UniversityUNSPECIFIED
Dekorsy, ThomasInstitute of Technical Physics, DLRhttps://orcid.org/0000-0003-2257-2854
Hettich, MikeKonstanz UniversityUNSPECIFIED
Date:22 December 2017
Journal or Publication Title:Scientific Reports
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:7
DOI :10.1038/s41598-017-18394-8
Page Range:pp. 1-7
Publisher:Nature Publishing Group
ISSN:2045-2322
Status:Published
Keywords:phononic metamaterial, acoustic phonons, elastic waves, topological states
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Laser Research and Technology
Location: Stuttgart
Institutes and Institutions:Institute of Technical Physics
Deposited By: Dekorsy, Prof. Dr. Thomas
Deposited On:09 Jan 2018 15:17
Last Modified:08 Mar 2018 18:36

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