Publications (12)
Inhibition of the photoinduced structural phase transition in the excitonic insulator TaNiSe
Selene Mor, Marc Herzog, Johannes Noack +7
Femtosecond time-resolved mid-infrared reflectivity is used to investigate the electron and phonon dynamics occurring at the direct band gap of the excitonic insulator TaNiSe$_…
Halide perovskite artificial solids as a new platform to simulate collective phenomena in doped Mott insulators
Alessandra Milloch, Umberto Filippi, Paolo Franceschini +9
The development of Quantum Simulators, artificial platforms where the predictions of many-body theories of correlated quantum materials can be tested in a controllable and tunable…
Photoinduced coherent modulation of an excitonic resonance via coupling with coherent optical phonons
Selene Mor, Valentina Gosetti, Alejandro Molina-Sánchez +7
The coupling of excitons with atomic vibrations plays a pivotal role on the nonequilibrium optical properties of layered semiconductors. However, addressing the dynamical interacti…
Unveiling exciton formation: exploring the early stages in time, energy and momentum domain
Valentina Gosetti, Jorge Cervantes-Villanueva, Selene Mor +9
Resolving the early-stage dynamics of exciton formation following non-resonant photoexcitation in time, energy, and momentum is quite challenging due to their inherently fast times…
Effect of photoinduced screening on the spectroscopic signature of exciton-phonon coupling
Selene Mor, Valentina Gosetti, Vadim F. Agekyan +3
The light-mediated interaction of fermionic and bosonic excitations governs the optoelectronic properties of condensed matter systems. In photoexcited semiconductors, the coupling…
The fate of optical excitons in FAPbI3 nanocube superlattices
Alessandra Milloch, Umberto Filippi, Paolo Franceschini +8
Understanding the nature of the photoexcitation and ultrafast charge dynamics pathways in organic halide perovskite nanocubes and their aggregation into superlattices is key for th…
Photo-enhanced antinodal conductivity in the pseudogap state of high Tc cuprates
Federico Cilento, Stefano Dal Conte, Giacomo Coslovich +18
A major challenge in understanding the cuprate superconductors is to clarify the nature of the fundamental electronic correlations that lead to the pseudogap phenomenon. Here we us…
Mott resistive switching initiated by topological defects
Alessandra Milloch, Ignacio Figueruelo-Campanero, Wei-Fan Hsu +11
Resistive switching is the fundamental process that triggers the sudden change of the electrical properties in solid-state devices under the action of intense electric fields. Desp…
Ultrafast charge carrier and exciton dynamics in an excitonic insulator probed by time-resolved photoemission spectroscopy
Selene Mor, Marc Herzog, Claude Monney +1
An excitonic insulator phase is expected to arise from the spontaneous formation of electron-hole pairs (excitons) in semiconductors where the exciton binding energy exceeds the si…
Coherent control of the orbital occupation driving the insulator-to-metal Mott transition in VO
Paolo Franceschini, Veronica R. Policht, Alessandra Milloch +13
Managing light-matter interactions on timescales faster than the loss of electronic coherence is key for achieving full quantum control of the final products in solid-solid transfo…
Detection of a coherent excitonic state in the layered semiconductor BiI
Valentina Gosetti, Jorge Cervantes-Villanueva, Davide Sangalli +6
The measurement and manipulation of the coherent dynamics of excitonic states constitute a forefront research challenge in semiconductor optics and in quantum coherence-based proto…
Ultrafast Electronic Band Gap Control in an Excitonic Insulator
Selene Mor, Marc Herzog, Denis Golež +8
We report on the nonequilibrium dynamics of the electronic structure of the layered semiconductor TaNiSe investigated by time- and angle-resolved photoelectron spectroscopy…