title: Ultrafast core-hole-induced dynamics in water probed by x-ray emission spectroscopy.
abstract: The isotope effect and excitation-energy dependence have been measured in the oxygen K-edge x-ray emission spectrum (XES). The use of XES to monitor core decay processes provides information about molecular dynamics (MD) on an ultrafast time scale through the O1s lifetime of a few femtoseconds. Different nuclear masses give rise to differences in the dynamics and the observed isotope effect in XES is direct evidence of the importance of such processes. MD simulations show that even the excitation-energy dependence in the XES is mainly related to differences in core-excited-state dynamics.
authors.affiliation: FYSIKUM, Stockholm University, Albanova, S-106 91 Stockholm, Sweden. Michael.Odelius@physto.se
authors.forename: Michael
authors.initials: M
authors.lastname: Odelius
authors.forename: Hirohito
authors.initials: H
authors.lastname: Ogasawara
authors.forename: Dennis
authors.initials: D
authors.lastname: Nordlund
authors.forename: Oliver
authors.initials: O
authors.lastname: Fuchs
authors.forename: Lothar
authors.initials: L
authors.lastname: Weinhardt
authors.forename: Florian
authors.initials: F
authors.lastname: Maier
authors.forename: Eberhard
authors.initials: E
authors.lastname: Umbach
authors.forename: Clemens
authors.initials: C
authors.lastname: Heske
authors.forename: Yan
authors.initials: Y
authors.lastname: Zubavichus
authors.forename: Michael
authors.initials: M
authors.lastname: Grunze
authors.forename: Jonathan D
authors.initials: JD
authors.lastname: Denlinger
authors.forename: Lars G M
authors.initials: LG
authors.lastname: Pettersson
authors.forename: Anders
authors.initials: A
authors.lastname: Nilsson