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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/ | ||||||||||||||||
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| Document Type: | Article | ||||||||||||||||
| Title: | Topological guiding of elastic waves in phononic metamaterials based on 2D pentamode structures | ||||||||||||||||
| Authors: |
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| 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 (old) | ||||||||||||||||
| 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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