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  • Letter

Dynamics of topological defects after photoinduced melting of a charge density wave

Andrei E. Tarkhov1,*, A. V. Rozhkov2, and Boris V. Fine3,†

  • 1Division of Genetics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115, USA
  • 2Institute for Theoretical and Applied Electrodynamics, Russian Academy of Sciences, Moscow 125412, Russia
  • 3Institute for Theoretical Physics, University of Leipzig, Brüderstr. 16, 04103 Leipzig, Germany

  • *atarkhov@bwh.harvard.edu
  • †boris.fine@uni-leipzig.de
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Phys. Rev. B 106, L121109 – Published 20 September, 2022

DOI: https://doi.org/10.1103/PhysRevB.106.L121109

Abstract

Charge-density-wave order in a solid can be temporarily “melted” by a strong laser pulse. Here, we use the discrete Gross-Pitaevskii equation on a cubic lattice to simulate the recovery of the CDW long-range phase coherence following such a pulse. Our simulations indicate that the recovery process is dramatically slowed down by the three-dimensional topological defects—CDW dislocations—created as a result of strongly nonequilibrium heating and cooling of the system. Overall, the simulated CDW recovery was found to be remarkably reminiscent of a recent pump-probe experiment in LaTe3.

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Phys. Rev. B 106, L121109– Published 20 September, 2022
  • Received 8 March 2022
  • Revised 2 August 2022
  • Accepted 1 September 2022
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