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Angle Resolved X-ray Photoelectron Spectroscopy Study of Au Deposited on Pt and Re Surfaces

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F04%3A00101118" target="_blank" >RIV/61388955:_____/04:00101118 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Angle Resolved X-ray Photoelectron Spectroscopy Study of Au Deposited on Pt and Re Surfaces

  • Original language description

    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.

  • Czech name

    Studium Au deponovaného na Pt a Re površích metodou úhlově rozlišené fotoelektronové spektroskopie s excitací X-zářením

  • Czech description

    Metodou XPS s úhlovým rozlišením byl studován růst Au na iontově leptaných a anelovaných površích Pt a Re. Pro Au deponované na povrchu Pt byly nalezeny záporné posuny elektronů Au 4f vnitřních hladin narozdíl od Re, kde jsou tyto posuny malé a kladné. Zmíněné posuny nezávisí na struktuře povrchu Pt avšak jsou ovlivněny strukturou povrchu Re. Výsledky ukázaly, že v mezifází Au-Pt vzniká slitina o tlouštce několika monovrstev zatímco mezifází Au/Re je ostré. Zjištěné trendy posunů vnitřních hladin Au 4fbyly reprodukovány výpočty metodou lokálního funkcionálu hustoty v aproximaci počátečního stavu.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CF - Physical chemistry and theoretical chemistry

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/KSK4040110" target="_blank" >KSK4040110: Theoretical fundamentals of chemical reactions and processes</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2004

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Surface Science

  • ISSN

    0039-6028

  • e-ISSN

  • Volume of the periodical

    566-568

  • Issue of the periodical within the volume

    -

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    5

  • Pages from-to

    832-836

  • UT code for WoS article

  • EID of the result in the Scopus database