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 ![]() | |
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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