Reference : Excitation energy and pair correlation function of trions near an LiF surface
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/10993/10568
Excitation energy and pair correlation function of trions near an LiF surface
English
Solleder, Beate [Technische Universität Wien = Vienna University of Technology - TU Vienna > Institute for Theoretical Physics]
Wirtz, Ludger mailto [CNRS UMR 8520 > Institute for Electronics, Microelectronics, and Nanotechnology]
Burgdörfer, Joachim [Technische Universität Wien = Vienna University of Technology - TU Vienna > Institute for Theoretical Physics]
2008
Physical Review B
78
15
Yes (verified by ORBilu)
International
1098-0121
[en] We investigate the excitation spectrum of a singly charged LiF surface using an embedded cluster approach. The spectrum is determined by multiconfiguration self-consistent field calculations. We find stable trionic states, i.e., quasimolecular states of a three-quasiparticle complex consisting of two holes and one electron interacting through the Coulomb potential. The excitation energy of the lowest trionic state is approximately 12.1 eV. The mean hole-hole spacing is about 7.6 a.u. (or 4 A). Our results confirm the interpretation of experiments [P. Roncin , Phys. Rev. Lett. 89, 043201 (2002)] where trion excitation was suggested as effective energy-loss channel during the neutralization of Ne(+) ions at an LiF surface.
http://hdl.handle.net/10993/10568
10.1103/PhysRevB.78.155432

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