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http://hdl.handle.net/11154/3399
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Title: | Bound state spectroscopy of he adsorbed on NaCl(001): Band structure effects |
Authors: | Vargas, MC Mochan, WL |
Issue Date: | 1996 |
Abstract: | The interaction between atoms and surfaces may be probed by bound state resonance spectroscopy. The experiments are usually interpreted within the free particle picture which assumes that the energy-momentum relation of atoms adsorbed onto a surface is described by 2D parabolic bands. We calculate and analyze the band structure of an atom adsorbed on a model corrugated surface and follow its behavior as the interaction potential evolves from weakly to strongly corrugated. Besides the expected reduction of degeneracy and development of gaps, we obtained a sizable correction to the bound state energies. We employ our results to reanalyze the available experiments on the system He-NaCl(001). |
URI: | http://hdl.handle.net/11154/3399 |
ISSN: | 0039-6028 |
Appears in Collections: | Ciencias
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