Interatomic resonant Auger effect in N2O. (22nd October 2020)

• Record Type: Journal Article
• Authors: Deinert, Sascha; Schrodt, Alexander; Hartmann, Gregor; Achner, Alexander; Artemyev, Anton N; Ehresmann, Arno; Hans, Andreas; Ilchen, Markus; Glaser, Leif; Scholz, Frank; Seltmann, Jörn; Viefhaus, Jens; Demekhin, Philipp V; Knie, André
• Is Part Of: Journal of physics. Volume 53:Number 22(2020:Nov. 15)
• Publication Date: 2020-10-22
• Subjects: photon interactions with molecules -- Auger effect and inner-shell excitation or ionization -- quantum mechanical interference; Atoms -- Periodicals; Molecules -- Periodicals; Optics -- Periodicals; Nuclear physics -- Periodicals; 539.6
• DOI: 10.1088/1361-6455/abbd2f
• Languages: English
• ISSNs: 0953-4075

Abstract

Abstract: The interatomic resonant Auger effect in N2 O is investigated experimentally and theoretically. We observe variations of the ratio between the yields of 1 s -photoionization of the central and terminal nitrogen atom in the photon energy range across the O 1 s → π * excitation. The present ab initio calculations of electronic structure and dynamics attribute these variations to the Fano interference between the direct N 1 s -photoionizations and the resonant O 1 s → π * excitation followed by Auger decays into the respective core–shell continua. The theory reveals that this interatomic core–hole-transfer effect is governed entirely by an energy transfer mechanism, and not by charge transfer.