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Angle Resolved X-ray Photoelectron Spectroscopy Study of Au Deposited on Pt and Re Surfaces
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SYSNO ASEP 0101118 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Angle Resolved X-ray Photoelectron Spectroscopy Study of Au Deposited on Pt and Re Surfaces Title Studium Au deponovaného na Pt a Re površích metodou úhlově rozlišené fotoelektronové spektroskopie s excitací X-zářením Author(s) Bastl, Zdeněk (UFCH-W) RID, ORCID
Pick, Štěpán (UFCH-W)Source Title Surface Science. - : Elsevier - ISSN 0039-6028
566-568, - (2004), s. 832-836Number of pages 5 s. Language eng - English Country NL - Netherlands Keywords photoelectron spectroscopy ; metal-metal interfaces ; gold and platinum Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects KSK4040110 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) Annotation The growth of Au on Pt and Re sputtered and annealed surfaces was investigated by angle resolved XPS method. The shifts of Au 4f core electron binding energy were negative for Au deposited on Pt and higher in magnitude than positive shifts observed for Au on Re. The shifts did not depend on the structure of the Pt substrate surface but were affected by structure of the Re surface. More than 5 equivalent monolayers of Au on Pt were required to obtain bulk-like spectra while 2 monolayers were sufficient for Au/Re. The results suggested formation of several monolayers thick interface Au-Pt alloy in contrast to abrupt Au/Re interface. The measured trends in Au 4f core level shifts were reproduced by those calculated using local density functional method within the initial state approximation. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2005
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