Photo-induced collective charge-density-wave dynamics in bulk 1T-VSe2

P. Sutar; D. Grabnar; D. Vengust; D. Svetin; E. Goreshnik; D. Mihailovic; T. Mertelj

doi:10.1063/5.0204205

APL Materials (Jul 2024)

Photo-induced collective charge-density-wave dynamics in bulk 1T-VSe2

P. Sutar,
D. Grabnar,
D. Vengust,
D. Svetin,
E. Goreshnik,
D. Mihailovic,
T. Mertelj

Affiliations

P. Sutar: Department of Complex Matter, Jozef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia
D. Grabnar: Department of Complex Matter, Jozef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia
D. Vengust: Department of Complex Matter, Jozef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia
D. Svetin: Department of Complex Matter, Jozef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia
E. Goreshnik: Department of Inorganic Chemistry and Technology, Jozef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia
D. Mihailovic: Department of Complex Matter, Jozef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia
T. Mertelj: Department of Complex Matter, Jozef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia

DOI: https://doi.org/10.1063/5.0204205
Journal volume & issue: Vol. 12, no. 7
pp. 071107 – 071107-8

Abstract

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We investigated temperature (T) and excitation density dependent ultrafast near-infrared (NIR) transient reflectivity dynamics in the charge density wave (CDW) phases of bulk layered 1T-VSe2 using NIR and visible excitations. The data reveal fingerprints of conventional non-adiabatic CDW collective dynamics with rather fast electronic order parameter dynamics showing sub-picosecond suppression and recovery. The slower T-dependent 100-ps dynamics indicates rather isotropic heat transport dominated by the lattice degrees of freedom.

Published in APL Materials

ISSN: 2166-532X (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Technology: Chemical technology: Biotechnology; Science: Physics
Website: http://aplmaterials.aip.org

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