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

Ionization and fragmentation of methylselenol (CH(3)SeH) molecules by intense (>10(17) W/cm(2)) 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 ioni...

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Veröffentlicht in:Physical review letters Jg. 110; H. 5; S. 053003
Hauptverfasser: Erk, B., Rolles, D., Foucar, L., Rudek, B., Epp, S. W., Cryle, M., Bostedt, C., Schorb, S., Bozek, J., Rouzee, A., Hundertmark, A., Marchenko, T., Simon, M., Filsinger, F., Christensen, L., De, S., Trippel, S., Küpper, J., Stapelfeldt, H., Wada, S., Ueda, K., Swiggers, M., Messerschmidt, M., Schröter, C. D., Moshammer, R., Schlichting, I., Ullrich, J., Rudenko, A.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: United States 30.01.2013
ISSN:0031-9007, 1079-7114, 1079-7114
Online-Zugang:Volltext
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Zusammenfassung:Ionization and fragmentation of methylselenol (CH(3)SeH) molecules by intense (>10(17) W/cm(2)) 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.
Bibliographie:ObjectType-Article-1
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content type line 23
ISSN:0031-9007
1079-7114
1079-7114
DOI:10.1103/PhysRevLett.110.053003