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Revisiting the Structure of the p4 4 Surface Oxide on Ag(111) J. Schnadt,1
 

Summary: Revisiting the Structure of the p4 4 Surface Oxide on Ag(111)
J. Schnadt,1
A. Michaelides,2
J. Knudsen,1
R. T. Vang,1
K. Reuter,2
E. Lægsgaard,1
M. Scheffler,2
and F. Besenbacher1
1
Interdisciplinary Nanoscience Center and Department of Physics and Astronomy, University of Aarhus,
Ny Munkegade, 8000 Aarhus C, Denmark
2
Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
(Received 10 January 2006; published 10 April 2006)
Scanning tunneling microscopy (STM) and density-functional theory are used to reexamine the
structure of the renowned p4 4-O=Ag111 surface oxide. The accepted structural model [C. I.
Carlisle et al., Phys. Rev. Lett. 84, 3899 (2000)] is incompatible with the enhanced resolution of the
current STM measurements. An ``Ag6 model'' is proposed that is more stable than its predecessor and
accounts for the coexistence of the p4 4 and a novel c3 5

  

Source: Alavi, Ali - Department of Chemistry, University of Cambridge
Schnadt, Joachim - Department of Synchrotron Radiation Research, Lunds Universitet

 

Collections: Chemistry; Materials Science