Ultrafast Charge Rearrangement and Nuclear Dynamics upon Inner-Shell Multiple Ionization of Small Polyatomic Molecules

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PhysRevLett.110.053003.pdf (672.03 KB)

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Abstract

Ionization and fragmentation of methylselenol (CH3SeH) molecules by intense (>1017 W/cm2) 5 fs x-ray pulses (ℏω=2 keV) are studied by coincident ion momentum spectroscopy. We contrast the measured charge state distribution with data on atomic Kr, determine kinetic energies of resulting ionic fragments, and compare them to the outcome of a Coulomb explosion model. We find signatures of ultrafast charge redistribution from the inner-shell ionized Se atom to its molecular partners, and observe significant displacement of the atomic constituents in the course of multiple ionization.

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https://hdl.handle.net/2097/43911

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Physics Faculty Research and Publications

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Except where otherwise noted, this item's license is described as © American Physical Society (APS). This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).