3 papers
cond-mat.mtrl-sci2023
Dynamical Phonons Following Electron Relaxation Stages in Photo-excited Graphene
Nina Girotto, Dino Novko
Ultrafast electron-phonon relaxation dynamics in graphene hides many distinct phenomena, such as hot phonon generation, dynamical Kohn anomalies, and phonon decoupling, yet still r…
cond-mat.mtrl-sci2023
Ultrafast nonadiabatic phonon renormalization in photoexcited single-layer MoS
Nina Girotto, Fabio Caruso, Dino Novko
Comprehending nonequilibrium electron-phonon dynamics at the microscopic level and at the short time scales is one of the main goals in condensed matter physics. Effective temperat…
cond-mat.mtrl-sci2022
Phonon Self-Energy Corrections: To Screen, or Not to Screen
Jan Berges, Nina Girotto, Tim Wehling +2
First-principles calculations of phonons are often based on the adiabatic approximation and on Brillouin-zone samplings that might not always be sufficient to capture the subtletie…