Reference : Influence of Inelastic Processes on Fast-Atom-Surface Diffraction
Scientific congresses, symposiums and conference proceedings : Paper published in a journal
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/10993/10332
Influence of Inelastic Processes on Fast-Atom-Surface Diffraction
English
Aigner, F. [Vienna University of Technology > Institute for Theoretical Physics]
Simonovic, N. [Institute for Theoretical Physics, Vienna University of Technology / Institute of Physics, Belgrade]
Solleder, B. [Vienna University of Technology > Institute for Theoretical Physics]
Wirtz, Ludger mailto [CNRS > IEMN]
Burgdörfer, Joachim [Vienna University of Technology > Institute for Theoretical Physics]
2008
Journal of Physics: Conference Series
Institute of Physics Publishing IOP
133
24TH SUMMER SCHOOL AND INTERNATIONAL SYMPOSIUM ON THE PHYSICS OF IONIZED GASES
Yes (verified by ORBilu)
Yes
International
1742-6588
1742-6596
Bristol
United Kingdom
24TH SUMMER SCHOOL AND INTERNATIONAL SYMPOSIUM ON THE PHYSICS OF IONIZED GASES
25–29 August 2008
[en] Diffraction of fast helium atoms at alkali-halide surfaces under grazing angles of incidence shows intriguing diffraction patterns. The persistence of quantum coherence is remarkably strong, even though high surface temperatures and high (keV) kinetic energies of the incident atoms would strongly suggest the dominance of dissipative and decohering processes. The main source of decoherence is the excitation or absorption of surface vibrations upon impact. The momentum transfer between the surface and the incident helium atom depends on the amplitude of the thermal vibrations of the surface atoms and the energy of the incident particle. We present an ab initio simulation of the quantum diffraction of fast helium beams at a LiF (100) surface in the < 110 > direction, and compare with recent experimental diffraction data.
http://hdl.handle.net/10993/10332
10.1088/1742-6596/133/1/012014
AUG 25-29, 2008
24th Summer School and International Symposium on Physics of Ionized Gases
Novi Sad
SERBIA
Malovic, G Popovic, L Dimitrijevic, M

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