Evidence map›Paper›PMID 42905087›Full record

ArticleNano letters2026

Dynamics of Charge-Density-Wave Puddles in 2H-NbSe2.

Shreya Kumbhakar, Marina Esposito, Anjan Kumar N M, Liwen Feng, Tommaso Confalone, Vasilisa Gerega, Flavia Lo Sardo, Rafiqul Alam, Davide Masarotti, Francesco Tafuri and 8 more

Abstract read
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In one paragraph

Article in Nano letters, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

18 authors.

Shreya KumbhakarInstitute of Solid State and Materials Physics, TUD Dresden University of Technology, DresdenD-01062, Germany.ORCID 0009-0001-9588-2952
Marina EspositoLeibniz Institute for Solid State and Materials Research, Helmholtzstr. 20, DresdenD-01069, Germany.
Anjan Kumar N MInstitute of Solid State and Materials Physics, TUD Dresden University of Technology, DresdenD-01062, Germany.
Liwen FengInstitute of Solid State and Materials Physics, TUD Dresden University of Technology, DresdenD-01062, Germany.
Tommaso ConfaloneLeibniz Institute for Solid State and Materials Research, Helmholtzstr. 20, DresdenD-01069, Germany.
Vasilisa GeregaLeibniz Institute for Solid State and Materials Research, Helmholtzstr. 20, DresdenD-01069, Germany.
Flavia Lo SardoLeibniz Institute for Solid State and Materials Research, Helmholtzstr. 20, DresdenD-01069, Germany.
Rafiqul AlamLeibniz Institute for Solid State and Materials Research, Helmholtzstr. 20, DresdenD-01069, Germany.
Davide MasarottiDepartment of Electrical Engineering and Information Technology, University of Naples Federico II, NaplesI-80126, Italy.
Francesco TafuriDepartment of Physics, University of Naples Federico II, NaplesI-80126, Italy.
Thomas BöhmLeibniz Institute for Solid State and Materials Research, Helmholtzstr. 20, DresdenD-01069, Germany.
Mahmoud Abdel-HafiezDepartment of Applied Physics and Astronomy, University of Sharjah, 27272Sharjah, United Arab Emirates.ORCID 0000-0002-1802-5279
Sushmita ChandraMax Planck Institute for Chemical Physics of Solids, DresdenD-01187, Germany.
Claudia FelserMax Planck Institute for Chemical Physics of Solids, DresdenD-01187, Germany.
Kornelius NielschLeibniz Institute for Solid State and Materials Research, Helmholtzstr. 20, DresdenD-01069, Germany.ORCID 0000-0003-2271-7726
Nicola PocciaLeibniz Institute for Solid State and Materials Research, Helmholtzstr. 20, DresdenD-01069, Germany.
Stefan KaiserInstitute of Solid State and Materials Physics, TUD Dresden University of Technology, DresdenD-01062, Germany.
Golam HaiderLeibniz Institute for Solid State and Materials Research, Helmholtzstr. 20, DresdenD-01069, Germany.ORCID 0000-0001-5300-3764

Funding

German Research Council (DFG) 247310070German Research Council (DFG) 390858490German Research Council (DFG) 452128813German Research Council (DFG) 460444718German Research Council (DFG) 512734967German Research Council (DFG) 539383397HORIZON EUROPE European Research Council 101044657HORIZON EUROPE European Research Council 101124606Leibniz-Institut f?r Festk?rper- und Werkstoffforschung Dresden NAMinistero dell'Universit? e della Ricerca PE0000023 NQSTI
6 · The paper itself

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.

Indexed as

Amplitude modesCharge density waveFano couplingRaman spectroscopyUltrafast spectroscopyvan der Waals materials

Identifiers

PMID42905087

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.