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@ARTICLE{Tymoshenko:644916,
      author       = {Tymoshenko, Yuliia and Haghighirad, Amir-Abbas and Heid,
                      Rolf and Lacmann, Tom and Ivashko, Alsu and Merritt, Adrian
                      and Shen, Xingchen and Merz, Michael and Garbarino, Gaston
                      and Paolasini, Luigi and Bosak, Alexei and Diekmann, Florian
                      K. and Rossnagel, Kai and Rosenkranz, Stephan and Said,
                      Ayman H. and Weber, Frank},
      title        = {{C}harge-density-wave quantum critical point under pressure
                      in 2{H}-{T}a{S}e$_2$},
      journal      = {Communications Physics},
      volume       = {8},
      number       = {1},
      issn         = {2399-3650},
      address      = {London},
      publisher    = {Springer Nature},
      reportid     = {PUBDB-2026-00459},
      pages        = {352},
      year         = {2025},
      abstract     = {The presence of a quantum-critical point (QCP) at which a
                      nearby ordered phase is suppressed to zero temperature is
                      often invoked to explain emergent quantum phases, e.g.
                      superconductivity. Yet, identifying a QCP and establishing
                      its correlation with superconductivity remains challenging.
                      Materials featuring charge-density-wave (CDW) order and
                      superconductivity offer a clear scenario as both states can
                      be associated with electron-phonon coupling. Here, we
                      uncover a CDW-QCP and demonstrate its interrelation with
                      superconductivity in the prototypical transition-metal
                      dichalcogenide 2H-TaSe$_2$. We determine the evolution of
                      the CDW state up to and beyond its suppression at the
                      critical pressure p$_c$ = 19.9(1) GPa by means of X-ray
                      diffraction and inelastic X-ray scattering measurements
                      providing a full crystallographic refinement of the
                      commensurate CDW superstructure. The pressure-induced
                      CDW-QCP in close vicinity to the maximum superconducting
                      transition temperature. Ab-initio lattice dynamical
                      calculations corroborate that 2H-TaSe$_2$ features
                      order-parameter fluctuation enhanced superconductivity and
                      can serve as a paradigm to investigate superconductivity
                      near a CDW-QCP.},
      cin          = {FS-SXQM},
      ddc          = {530},
      cid          = {I:(DE-H253)FS-SXQM-20190201},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632) / DFG project G:(GEPRIS)460248799 -
                      DAPHNE4NFDI - DAten aus PHoton- und Neutronen Experimenten
                      für NFDI (460248799) / DFG project G:(GEPRIS)444821420 -
                      Elastische Kontrolle von konkurrierenden Ordnungen in
                      korrelierten Quantenmaterialien (B03) (444821420) / 05K22VK1
                      - Parabolische geschachtelte Spiegeloptik für thermische
                      Neutronen am Dreiachsenspektrometer PUMA (BMBF-05K22VK1)},
      pid          = {G:(DE-HGF)POF4-632 / G:(GEPRIS)460248799 /
                      G:(GEPRIS)444821420 / G:(DE-Ds200)BMBF-05K22VK1},
      experiment   = {EXP:(DE-MLZ)External-20140101},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1038/s42005-025-02254-3},
      url          = {https://bib-pubdb1.desy.de/record/644916},
}