title: The interaction between atoms of Au and Cu with clean Si(111) surface: a study combining synchrotron radiation grazing incidence X-ray fluorescence analysis and theoretical calculations.
abstract: In order to evaluate the interactions between Au/Cu atoms and clean Si(111) surface, we used synchrotron radiation grazing incidence X-ray fluorescence analysis and theoretical calculations. Optimized geometries and energies on different adsorption sites indicate that the binding energies at different adsorption sites are high, suggesting a strong interaction between metal atom and silicon surface. The Au atom showed higher interaction than Cu atom. The theoretical and experimental data showed good agreement.
authors: Universidade Estadual Paulista Julio de Mesquita Filho, Depto. Físico-Química, CEP 14800-900, Araraquara, SP, Brazil.
authors: Hudson W P
authors: HW
authors: de Carvalho
authors: Ana P L
authors: AP
authors: Batista
authors: Teodorico C
authors: TC
authors: Ramalho
authors: Carlos A
authors: CA
authors: Pérez
authors: Angelo Luiz
authors: AL
authors: Gobbi
mesh_terms: D000042:Absorption; D003300:Copper / Q000737:chemistry / Q000493:pharmacokinetics*; D006046:Gold / Q000737:chemistry / Q000493:pharmacokinetics*; D008954:Models, Biological; D008958:Models, Molecular; D008962:Models, Theoretical; D015394:Molecular Structure; D012825:Silicon / Q000737:chemistry / Q000378:metabolism*; D013052:Spectrometry, X-Ray Emission / Q000295:instrumentation / Q000379:methods; D013499:Surface Properties; D017356:Synchrotrons
chemical_list: D006046:Gold; D003300:Copper; D012825:Silicon