Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5426814 | Surface Science | 2006 | 8 Pages |
Abstract
Geometric and electronic structures of Sm adlayers on Cu(1Â 0Â 0) and (1Â 1Â 0) were studied by scanning tunneling microscopy (STM) and X-ray photoelectron spectroscopy (XPS). The present results, in addition to the previous results for Sm/Cu(1Â 1Â 1) [Y. Nakayama, H. Kondoh, T. Ohta, Surf. Sci. 552 (2004) 53], indicate that the valence state of Sm adsorbed on Cu surfaces is determined by Sm-Sm and Sm-Cu coordination numbers. We propose that the valence state of the adsorbed Sm atoms can be explained by a simple thermodynamic equation including the coordination numbers.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Yasuo Nakayama, Hiroshi Kondoh, Toshiaki Ohta,