{
  "abstract": "Electronic phases in quantum materials are often governed by nanoscale inhomogeneity, where local order develops within spatially confined regions, or puddles. A prominent example is an incommensurate charge-density-wave (I-CDW) comprising locally commensurate domains. In 2H-NbSe2, such an I-CDW state persists alongside lattice anharmonicity and superconductivity, raising fundamental questions about the dynamical stabilization of CDW order in puddles. Here, using Raman scattering, we reveal a strong Fano-coupling between interlayer shear phonons and the CDW amplitude mode. Our time-resolved reflectivity measurement shows a low-frequency ∼0.2 THz coherent overdamped oscillation onsetting within the CDW regime at ∼17K, indicating a previously unexplored transition. This we identify as a Fano-coupled phonon-CDW hybrid emerging from the collective dynamics of CDW puddles. We establish an overdamped-oscillator framework for capturing such intertwined glassy dynamics. These results highlight how lattice pinning and electronic correlations shape CDW order in layered materials, insight crucial for designing novel van der Waals devices.",
  "abstract_shown": true,
  "affiliations": [
    "Institute of Solid State and Materials Physics, TUD Dresden University of Technology, DresdenD-01062, Germany.",
    "Leibniz Institute for Solid State and Materials Research, Helmholtzstr. 20, DresdenD-01069, Germany.",
    "Department of Physics, University of Naples Federico II, NaplesI-80126, Italy.",
    "Institute of Applied Physics, TUD Dresden University of Technology, DresdenD-01062, Germany.",
    "Institute of Materials Science, TUD Dresden University of Technology, DresdenD-01062, Germany.",
    "Department of Electrical Engineering and Information Technology, University of Naples Federico II, NaplesI-80126, Italy.",
    "Department of Applied Physics and Astronomy, University of Sharjah, 27272Sharjah, United Arab Emirates.",
    "Max Planck Institute for Chemical Physics of Solids, DresdenD-01187, Germany."
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 18,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Shreya Kumbhakar",
      "orcid": "0009-0001-9588-2952"
    },
    {
      "affs": [
        1,
        2
      ],
      "name": "Marina Esposito"
    },
    {
      "affs": [
        0
      ],
      "name": "Anjan Kumar N M"
    },
    {
      "affs": [
        0
      ],
      "name": "Liwen Feng"
    },
    {
      "affs": [
        1,
        3
      ],
      "name": "Tommaso Confalone"
    },
    {
      "affs": [
        1,
        3
      ],
      "name": "Vasilisa Gerega"
    },
    {
      "affs": [
        1,
        4
      ],
      "name": "Flavia Lo Sardo"
    },
    {
      "affs": [
        1
      ],
      "name": "Rafiqul Alam"
    },
    {
      "affs": [
        5
      ],
      "name": "Davide Masarotti"
    },
    {
      "affs": [
        2
      ],
      "name": "Francesco Tafuri"
    },
    {
      "affs": [
        1
      ],
      "name": "Thomas Böhm"
    },
    {
      "affs": [
        6
      ],
      "name": "Mahmoud Abdel-Hafiez",
      "orcid": "0000-0002-1802-5279"
    },
    {
      "affs": [
        7
      ],
      "name": "Sushmita Chandra"
    },
    {
      "affs": [
        7
      ],
      "name": "Claudia Felser"
    },
    {
      "affs": [
        1,
        4
      ],
      "name": "Kornelius Nielsch",
      "orcid": "0000-0003-2271-7726"
    },
    {
      "affs": [
        1,
        2
      ],
      "name": "Nicola Poccia"
    },
    {
      "affs": [
        0
      ],
      "name": "Stefan Kaiser"
    },
    {
      "affs": [
        1
      ],
      "name": "Golam Haider",
      "orcid": "0000-0001-5300-3764"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/cqxrtmngqrth8.bib",
  "cited_by": 0,
  "doi": "10.1021/acs.nanolett.6c03967",
  "fulltext_url": "https://europepmc.org/articles/PMC13693501",
  "id": "cqxrtmngqrth8",
  "issns": [
    "1530-6984",
    "1530-6992"
  ],
  "landing_url": "https://europepmc.org/article/MED/42905087",
  "language": "eng",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2505|2D Materials and Applications"
    ]
  ],
  "openalex": "W7221526533",
  "pdf_url": "https://europepmc.org/articles/PMC13693501?pdf=render",
  "pmcid": "PMC13693501",
  "pmid": "42905087",
  "published": "2026-10-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/cqxrtmngqrth8.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:57Z",
      "native_id": "MED:42905087",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42905087"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2505|2D Materials and Applications",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Dynamics of Charge-Density-Wave Puddles in 2H-NbSe2.",
  "title_text": "Dynamics of Charge-Density-Wave Puddles in 2H-NbSe2.",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:19:57Z",
  "url": "https://research.draconitic.com/paper/cqxrtmngqrth8",
  "venue": "Nano letters",
  "versions": []
}