Localization of Inner-Shell Photoelectron Emission and Interatomic Coulombic Decay in Ne$_2$

K. Kreidi; T. Jahnke; Th. Weber; T. Havermeier; R. E. Grisenti; X. Liu; Y. Morisita; S. Schössler; L. Ph. H. Schmidt; M. Schöffler; M. Odenweller; N. Neumann; L. Foucar; J. Titze; B. Ulrich; F. Sturm; C. Stuck; R. Wallauer; S. Voss; I. Lauter; H. K. Kim; M. Rudloff; H. Fukuzawa; G. Prümper; N. Saito; K. Ueda; A. Czasch; O. Jagutzki; H. Schmidt-Böcking; S. K. Semenov; N. A. Cherepkov; R. Dörner

doi:10.1088/0953-4075/41/10/101002

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arXiv · 0803.4461

Localization of Inner-Shell Photoelectron Emission and Interatomic Coulombic Decay in Ne$_2$

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Abstract

We used Cold Target Recoil Ion Momentum Spectroscopy (COLTRIMS) to investigate the decay of Ne$_2$ after K-shell photoionization. The breakup into Ne$^{1+}$ / Ne$^{2+}$ shows interatomic Coulombic decay (ICD) occurring after a preceding atomic Auger decay. The molecular frame angular distributions of the photoelectron and the ICD electron show distinct, asymmetric features, which imply localization of the K-vacancy created at one of the two atomic sites of the Ne$_2$ and an emission of the ICD electron from a localized site. The experimental results are supported by calculations in frozen core Hartree-Fock approach.

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K. Kreidi, T. Jahnke, Th. Weber, T. Havermeier, R. E. Grisenti, X. Liu, Y. Morisita, S. Schössler, L. Ph. H. Schmidt, M. Schöffler, M. Odenweller, N. Neumann, L. Foucar, J. Titze, B. Ulrich, F. Sturm, C. Stuck, R. Wallauer, S. Voss, I. Lauter, H. K. Kim, M. Rudloff, H. Fukuzawa, G. Prümper, N. Saito, K. Ueda, A. Czasch, O. Jagutzki, H. Schmidt-Böcking, S. K. Semenov, N. A. Cherepkov, R. Dörner. 2008-03-31. Localization of Inner-Shell Photoelectron Emission and Interatomic Coulombic Decay in Ne$_2$. https://doi.org/10.1088/0953-4075/41/10/101002

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