| Title: | The role of non-equilibrium dynamics in photo-induced phase transitions of correlated materials |
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| Authors: | Urbančič, Jurij (Author)
et al. |
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| Files: | This document has no files. This document may have a phisical copy in the library of the organization, check the status via COBISS.  |
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| Language: | English |
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| Work type: | Not categorized (r6) |
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| Tipology: | 1.12 - Published Scientific Conference Contribution Abstract |
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| Organization: | UNG - University of Nova Gorica |
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| 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. |
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| Keywords: | Correlated Materials, High Harmonic Generation, ARPES |
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| Year of publishing: | 2015 |
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| COBISS_ID: | 16574979 |
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| URN: | URN:SI:UNG:REP:FBVQNCKN |
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| Views: | 2089 |
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| Downloads: | 0 |
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