{
  "abstract": "Elastic waves in anisotropic media can exhibit a power flux that is not collinear with the wave vector. This has notable consequences for waves guided in a plate. Through laser-ultrasonic experiments, we evidence remarkable phenomena due to slow waves in a single-crystal silicon wafer. Waves exhibiting power flux orthogonal to their wave vector are identified. A pulsed line source that excites these waves reveals a wave packet radiated parallel to the line. Furthermore, there exist precisely eight plane waves with zero power flux. These so-called zero–group-velocity modes are oriented along the crystal’s principal axes. Time acts as a filter in the wave-vector domain that selects these modes. Thus, a point source leads to beating resonance patterns with moving nodal curves on the surface of the infinite plate. We observe this pattern as it emerges naturally after a pulsed excitation.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2307.14259",
  "author_total": 3,
  "authors": [
    {
      "name": "Daniel A Kiefer"
    },
    {
      "name": "Sylvain Mezil"
    },
    {
      "name": "Claire Prada"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/7k4g5g8nza57d.bib",
  "cited_by": 17,
  "doi": "10.1126/sciadv.adk6846",
  "fulltext_url": null,
  "id": "7k4g5g8nza57d",
  "issns": [
    "2375-2548"
  ],
  "landing_url": "https://hal.science/hal-04794869v1",
  "language": "en",
  "licence": "CC-BY-NC-4.0",
  "licence_label": "CC BY-NC 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
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      "0.phys"
    ],
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      "hal",
      "1.phys.cond"
    ],
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      "hal",
      "1.phys.meca"
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      "hal",
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      "hal",
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    [
      "openalex",
      "2211|Ultrasonics and Acoustic Wave Propagation"
    ]
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  "openalex": "W4390021940",
  "pdf_url": "https://hal.science/hal-04794869/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-31",
  "publisher": "American Association for the Advancement of Science (AAAS)",
  "ris": "https://research.draconitic.com/paper/7k4g5g8nza57d.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:21Z",
      "native_id": "hal-04794869",
      "source": "hal",
      "url": "https://hal.science/hal-04794869v1"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "hal:1.phys.cond",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Beating resonance patterns and extreme power flux skewing in anisotropic elastic plates",
  "title_text": "Beating resonance patterns and extreme power flux skewing in anisotropic elastic plates",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:21Z",
  "url": "https://research.draconitic.com/paper/7k4g5g8nza57d",
  "venue": "Science Advances",
  "versions": []
}