Site-selective ionization and relaxation dynamics in heterogeneous nanosystems

M. Hoener, D. Rolles, A. Aguilar, R. C. Bilodeau, D. Esteves, P. Olalde Velasco, Z. D. Pešić, E. Red, N. Berrah

Research output: Contribution to journalArticlepeer-review

Abstract

We investigated energy and charge transfer mechanisms as well as fragmentation dynamics in site-selectively ionized heterogeneous core-shell clusters using a high-resolution photoelectron-ion coincidence technique. We show that after inner-shell photoionization, energy or charge is transferred to neighboring atoms and that the subsequent charge localization depends on the site of ionization. Cluster bulk ionization leads to more distinct fragmentation channels than surface ionization. We attribute this to different electronic decay, charge localization, and fragmentation times and conclude that charge transfer and fragmentation dynamics are strongly influenced by the environment of the initially ionized atom.

Original languageEnglish
Article number021201
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume81
Issue number2
DOIs
StatePublished - Feb 1 2010

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