Acoustic Analogue of Graphene: Observation of Dirac Cones in Acoustic Surface Waves
Open accessAbstract
We demonstrate the presence of Dirac cones in the dispersion relation of acoustic waves propagating on the surface of a plate of methyl methacrylate containing a honeycomb lattice of cylindrical boreholes. This structure represents the acoustic analogue of graphene, the cylindrical cavities playing the role of carbon atoms while acoustic surface waves are the equivalent of electronic waves in graphene. Analytical expressions for the Dirac frequency and Dirac velocity in acoustics are given as a function of the radius and depth of boreholes. These parameters have been experimentally determined for a constructed structure and the data are in fairly good agreement with the predicted values.
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The band structure related to Dirac cones has been widely investigated in the energy-momentum space using bulk measurement with measured density and dispersion pattern.
“The band structure related to Dirac cones has been widely investigated in the energy-momentum space using the bulk measurement with measured density and dispersion pattern [10, 22-25].”
From Observing movement of Dirac cones from single-photon dynamics (2021) · cites this paper as [23]
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References 20 · Cited by 169
- Authors
- Torrent, D., & Sánchez-Dehesa, J.
- Affiliations
- Universitat Politècnica de València (ES)
- ORCID
- Torrent, Daniel
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2012-04-27
- Volume
- 108
- Issue
- 17
- Pages
- 174301-174301
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2326815493
- Cited by
- 169
- References
- 20
- Citations by year
- 2026: 6 · 2025: 8 · 2024: 12 · 2023: 7 · 2022: 11 · 2021: 11 · 2020: 14 · 2019: 23 · 2018: 11 · 2017: 16 · 2016: 12 · 2015: 11 · 2014: 14 · 2013: 10 · 2012: 2
- FWCI
- 6.74
- Type
- journal article
- Language
- en
- Open access
- green
- hdl.handle.net
- Licence
- Locations
- Physical Review Letters (publishedVersion)
- PubMed (publishedVersion)
- RiuNet (Universitat Politècnica de València) (submittedVersion, cc-by-nc-nd)
- Topics
- Physical Sciences › Engineering › Biomedical Engineering › Acoustic Wave Phenomena Research
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Topological Materials and Phenomena
- Physical Sciences › Engineering › Biomedical Engineering › Acoustic Wave Resonator Technologies
- Keywords
- surface acoustic waves, honeycomb lattice, dispersion relation, phononic crystals
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