Journal
CHEMICAL SCIENCE
Volume 13, Issue 6, Pages 1789-1800Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1sc04630f
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Funding
- U.S. Department of Energy Office of Basic Energy Sciences, Division of Chemical Sciences, Biosciences, and Geosciences [DE-AC02-05CH11231]
- US DOE [DE-FG02-86ER13491]
- ALS through a Doctoral Fellowship in Residence
- European Research Council (ERC) [692657]
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Interatomic Coulombic decay in NeKr dimers was investigated after neon inner-valence photoionization using a synchrotron light source. The temporal evolution of the state was probed by carefully tracing the post-collision interaction between the photoelectron and the emitted ICD electron, revealing the lifetime of the intermediate dimer cation state and the contraction of the nuclear structure on the femtosecond time scale.
We investigate interatomic Coulombic decay in NeKr dimers after neon inner-valence photoionization [Ne+(2s(-1))] using a synchrotron light source. We measure with high energy resolution the two singly charged ions of the Coulomb-exploding dimer dication and the photoelectron in coincidence. By carefully tracing the post-collision interaction between the photoelectron and the emitted ICD electron we are able to probe the temporal evolution of the state as it decays. Although the ionizing light pulses are 80 picoseconds long, we determine the lifetime of the intermediate dimer cation state and visualize the contraction of the nuclear structure on the femtosecond time scale.
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