%0 Electronic Article
%A Mansson, Erik P.
%A Latini, Simone
%A Covito, Fabio
%A Wanie, Vincent
%A Galli, Mara
%A Perfetto, Enrico
%A Stefanucci, Gianluca
%A Huebener, Hannes
%A De Giovannini, Umberto
%A Castrovilli, Mattea C.
%A Trabattoni, Andrea
%A Frassetto, Fabio
%A Poletto, Luca
%A Greenwood, Jason B.
%A Legare, Francois
%A Nisoli, Mauro
%A Rubio, Angel
%A Calegari, Francesca
%T Correlation-driven sub-3 fs charge migration in ionised adenine
%M PUBDB-2021-01440
%D 2021
%X Sudden ionisation of a relatively large molecule can initiate a correlation-driven process dubbed charge migration, where the electron density distribution is expected to rapidly change. Capturing this few-femtosecond/attosecond charge redistribution represents the real-time observation of the electron correlation in the molecule. So far, there has been no experimental evidence of this process. Here we report on a time-resolved study of the correlation-driven charge migration process occurring in the bio-relevant molecule adenine after ionisation by a 15-35 eV attosecond pulse. We find that, the production of intact doubly charged adenine - via a shortly-delayed laser-induced second ionisation event - represents the signature of a charge inflation mechanism resulting from the many-body excitation. This conclusion is supported by first-principles time-dependent simulations. Our findings opens new important perspectives for the control of the molecular reactivity at the electronic timescale.
%F PUB:(DE-HGF)25
%9 Preprint
%R 10.3204/PUBDB-2021-01440
%U https://bib-pubdb1.desy.de/record/456289