Dynamics of topological defects after a photo-induced melting of a charge-density wave

Autor:	Tarkhov, Andrei E., Rozhkov, A. V., Zong, Alfred, Kogar, Anshul, Gedik, Nuh, Fine, Boris V.
Rok vydání:	2022
Předmět:	Condensed Matter - Strongly Correlated Electrons Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Quantum Gases Condensed Matter - Superconductivity Quantum Physics
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.106.L121109
Popis:	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 LaTe$_3$. Comment: v2. Main text: 5 pages, 4 figures. Supplemental Material: 7 pages, 8 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2203.05001 Zobrazit plný text záznamu View this record from Arxiv