S. Eich (Avtor), Jurij Urbančič (Avtor)

Povzetek

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.

Ključne besede

correlated materials;high harmonic generation;ARPES;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.12 - Objavljeni povzetek znanstvenega prispevka na konferenci
Organizacija: UNG - Univerza v Novi Gorici
UDK: 53
COBISS: 16574979 Povezava se bo odprla v novem oknu
Št. ogledov: 2199
Št. prenosov: 0
Ocena: 0 (0 glasov)
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Ostali podatki

URN: URN:SI:UNG
Vrsta dela (COBISS): Delo ni kategorizirano
ID: 11725055