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Surface EXAFS on Low-Z Elements

Baberschke, K.

Abstract Only during the past 12 months has the first surface EXAFS at the carbon and nitrogen K-edge been reported. These experiments, in conjunction with oxygen data, will be discussed. All 3 atoms were adsorbed on Cu and Ni surfaces at 1/2 monolayer coverage. Precise and systematic nearest neighbor bond lengths have been determined. These data in combination with LEED experiments gave a detailed view into the local bonding geometry and the effect of chemically induced reconstruction. Recent Sexafs experiments on hydrocarbons C2H2 and C2H4/Cu (100) yield for the first time bond distances to the Cu-atoms. Also a stretching of the C-C distance was observed. Finally we present more advanced effects in the Sexafs analysis: multiple scattering effects and the Debye-Waller factor in the Exafs amplitude.

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Surface EXAFS on Low-Z Elements

Baberschke, K.

Abstract Only during the past 12 months has the first surface EXAFS at the carbon and nitrogen K-edge been reported. These experiments, in conjunction with oxygen data, will be discussed. All 3 atoms were adsorbed on Cu and Ni surfaces at 1/2 monolayer coverage. Precise and systematic nearest neighbor bond lengths have been determined. These data in combination with LEED experiments gave a detailed view into the local bonding geometry and the effect of chemically induced reconstruction. Recent Sexafs experiments on hydrocarbons C2H2 and C2H4/Cu (100) yield for the first time bond distances to the Cu-atoms. Also a stretching of the C-C distance was observed. Finally we present more advanced effects in the Sexafs analysis: multiple scattering effects and the Debye-Waller factor in the Exafs amplitude.

Surface EXAFS on Low-Z Elements

Baberschke, K.

Abstract Only during the past 12 months has the first surface EXAFS at the carbon and nitrogen K-edge been reported. These experiments, in conjunction with oxygen data, will be discussed. All 3 atoms were adsorbed on Cu and Ni surfaces at 1/2 monolayer coverage. Precise and systematic nearest neighbor bond lengths have been determined. These data in combination with LEED experiments gave a detailed view into the local bonding geometry and the effect of chemically induced reconstruction. Recent Sexafs experiments on hydrocarbons C2H2 and C2H4/Cu (100) yield for the first time bond distances to the Cu-atoms. Also a stretching of the C-C distance was observed. Finally we present more advanced effects in the Sexafs analysis: multiple scattering effects and the Debye-Waller factor in the Exafs amplitude.

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Titel:

Surface EXAFS on Low-Z Elements

Beteiligte:

Baberschke, K. (Autor:in)

Erschienen in:

The Structure of Surfaces II ; 174-182

Springer Series in Surface Sciences ; 11

Erscheinungsdatum:

01.01.1988

Format / Umfang:

9 pages

ISBN:

978-3-642-73345-1 , 978-3-642-73343-7

ISSN:

DOI:

https://doi.org/10.1007/978-3-642-73343-7_29

Medientyp:

Aufsatz/Kapitel (Buch)

Format:

Elektronische Ressource

Sprache:

Englisch

Schlagwörter:

Multiple Scattering , Beating Effect , Experimental Phase Shift , Multiple Scatter Effect , Triangle Path Physics , Surface and Interface Science, Thin Films , Surfaces and Interfaces, Thin Films , Crystallography

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