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Journal Article

Time-Resolved Measurement of Interatomic Coulombic Decay in Ne2.


Boll,  R.
Research Group of Structural Dynamics of (Bio)Chemical Systems, MPI for Biophysical Chemistry, Max Planck Society;

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Schnorr, K., Senftleben, A., Kurka, M., Rudenko, A., Foucar, L., Schmid, G., et al. (2013). Time-Resolved Measurement of Interatomic Coulombic Decay in Ne2. Physical Review Letters, 111(9-30): 093402. doi:10.1103/PhysRevLett.111.093402.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002B-B9D3-D
The lifetime of interatomic Coulombic decay (ICD) [L. S. Cederbaum et al., Phys. Rev. Lett. 79, 4778 (1997)] in Ne2 is determined via an extreme ultraviolet pump-probe experiment at the Free-Electron Laser in Hamburg. The pump pulse creates a 2s inner-shell vacancy in one of the two Ne atoms, whereupon the ionized dimer undergoes ICD resulting in a repulsive Ne+(2p−1)−Ne+(2p−1) state, which is probed with a second pulse, removing a further electron. The yield of coincident Ne+−Ne2+ pairs is recorded as a function of the pump-probe delay, allowing us to deduce the ICD lifetime of the Ne+2(2s−1) state to be (150±50)  fs, in agreement with quantum calculations.