Bound state spectroscopy of He adsorbed on NaCl(001): band structure effects

Autor:	W. Luis Mochán, M. Cristina Vargas
Rok vydání:	1996
Předmět:	Free particle chemistry.chemical_element Surfaces and Interfaces Condensed Matter Physics Molecular physics Resonance (particle physics) Surfaces Coatings and Films chemistry Computational chemistry Atom Bound state Materials Chemistry Electronic band structure Spectroscopy Helium Surface states
Zdroj:	Surface Science. 355:115-126
ISSN:	0039-6028
DOI:	10.1016/0039-6028(95)01367-9
Popis:	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).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::883d576c0e6b89922e7e24d91db1f168 https://doi.org/10.1016/0039-6028(95)01367-9 Zobrazit plný text záznamu Full Text from ScienceDirect