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Orientation and substrate interaction of adsorbed CO and NO molecules probed by circular dichroism in the angular distribution of photoelectrons

Westphal, C. and Fegel, F. and Bansmann, J. and Getzlaff, M. and Schönhense, G. and Stephens, J. A. and McKoy, V. (1994) Orientation and substrate interaction of adsorbed CO and NO molecules probed by circular dichroism in the angular distribution of photoelectrons. Physical Review B, 50 (23). pp. 17534-17539. ISSN 0163-1829. https://resolver.caltech.edu/CaltechAUTHORS:20151019-143015866

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Abstract

The sensitivity and utility of circular dichroism in the angular distribution of photoelectrons (CDAD) as a probe of molecular orientation is demonstrated for adsorbed CO and NO molecules. A comparison between measured CDAD spectra and calculated values for spatially oriented CO and NiCO clearly confirms the well-known perpendicular adsorption for CO on Ni(100), whereas for CO adsorbed on Fe(100) a tilted adsorption geometry was found. For NO/Ni(100) and for NO on the oxygen-preadsorbed Ni(100) surface, an average tilt angle of α=40±10° was observed. In the case of the oxygen-preadsorbed Ni(100) surface, a higher fraction of NO molecules was found to be in a tilted orientation than on the clean surface.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevB.50.17534DOIArticle
http://journals.aps.org/prb/abstract/10.1103/PhysRevB.50.17534PublisherArticle
Additional Information:© 1994 American Physical Society. (Received 14 February 1994) The authors wish to thank the staff of BESSY for excellent support and gratefully acknowledge financial support by the Bundesministerium für Forschung und Technologie (BMFT 05 431 AXB 6). They also thank Dr. A. P. Kaduwela for a critical reading of the manuscript.
Funders:
Funding AgencyGrant Number
Bundesministerium für Forschung und Technologie (BMFT)BMFT 05 431 AXB 6
Issue or Number:23
Record Number:CaltechAUTHORS:20151019-143015866
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20151019-143015866
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:61275
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:20 Oct 2015 20:56
Last Modified:03 Oct 2019 09:06

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