Volume 74, Number 6, June 2006
|Page(s)||1032 - 1038|
|Section||Condensed matter: structural, mechanical and thermal properties|
|Published online||12 May 2006|
Polarization-dependent resonant anomalous surface X-ray scattering of
Argonne National Laboratory, Materials Science Division 9700 S. Cass Ave., Argonne, IL 60439, USA
2 Argonne National Laboratory, Experimental Facility Division 9700 S. Cass Ave., Argonne, IL 60439, USA
3 University of Washington, Department of Physics P.O. Box 351560, Seattle, WA 98195, USA
Accepted: 19 April 2006
Polarization dependence of resonant anomalous surface X-ray scattering (RASXS) was studied for interfaces buried in electrolytes and in high-pressure gas. We find that RASXS exhibits strong polarization dependence when the surface is only slightly modified by adsorption of light elements such as carbon monoxide on platinum surfaces. - and π-polarization RASXS data were simulated with the latest version of ab initio multiple scattering calculations (FEFF8.2). Based on the simulation, we find that Pt layer to C distances in the ()-3 structure are and for atop and 3-fold , respectively. Some considerations are presented for the origin of the polarization dependence in RASXS.
PACS: 61.10.-i – X-ray diffraction and scattering / 68.35.Ct – Interface structure and roughness / 82.45.Jn – Surface structure, reactivity and catalysis
© EDP Sciences, 2006
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.