The role of non-equilibrium dynamics in photo-induced phase transitions of correlated materials

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Title:	The role of non-equilibrium dynamics in photo-induced phase transitions of correlated materials
Authors:	ID Urbančič, Jurij (Author), et al.
Files:	This document has no files. This document may have a physical copy in the library of the organization, check the status via COBISS.
Language:	English
Work type:	Not categorized
Typology:	1.12 - Published Scientific Conference Contribution Abstract
Organization:	UNG - University of Nova Gorica
Abstract:	We use femtosecond extreme-ultraviolet time- and angle-resolved photoelectron spectroscopy to study the ultrafast photo-induced suppression of the charge-density wave (CDW) in 1T-TiSe2. In the following non-equilibrium electron dynamics after femtosecond laser excitation, we see that hot-carrier multiplication is the primary driver for the ultrafast CDW suppression. As soon as the optically excited carriers have relaxed to a quasi-equilibrium hot Fermi-distribution electron gas, the CDW suppression stops. Theoretical calculations of the hot-carrier scattering processes and the screening properties further link the carrier multiplication to the observed CDW gap dynamics.
Keywords:	Correlated Materials, High Harmonic Generation, ARPES
Publication status:	Published
Year of publishing:	2015
PID:	20.500.12556/RUNG-5466-6573556e-fcf7-5376-87f6-0414549ffe34
COBISS.SI-ID:	16574979
NUK URN:	URN:SI:UNG:REP:FBVQNCKN
Publication date in RUNG:	22.05.2020
Views:	2909
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