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Article
The structure of the CoS2 (100)-(1×1) surface
Journal of Physics Condensed Matter (2007)
  • Z. X. Yu, School of Physics & Engineering, Zhongshan University, Guangzhou 510275, People’s Republic of China
  • M. A. Van Hove, Department of Physics and Materials Science, City University of Hong Kong, Kowloon, Hong Kong SAR
  • S. Y. Tong, Department of Physics and Materials Science, City University of Hong Kong, Kowloon, Hong Kong SAR
  • David Wisbey, Department of Physics and Astronomy and the Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE 68588-0111
  • Ya. B. Losovyj, Department of Physics and Astronomy and the Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE 68588-0111
  • Ning Wu, Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN55455
  • M. Manno, Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN55455
  • L. Wang, Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN55455
  • C. Leighton, Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN55455
  • W. N. Mei, Department of Physics and Astronomy and the Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE 68588-0111
  • P.A. Dowben, Department of Physics and Astronomy and the Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE 68588-0111
Abstract
Quantitative low-energy electron diffraction (LEED) has been used to determine the structure of the cubic CoS2 (100)-(1×1) surface. The clearly favored structural model from the LEED analysis is the 1S - terminated (1×1) surface, in which the S-S dimer is intact and the terminal surface layer retains a complete S-Co-S sandwich structure. The surface S atoms move outwards towards the vacuum while the subsurface Co atoms move towards the bulk, by approximately 0.03 and 0.11 Å, respectively. In addition, the S atoms in the third sublayer relax outwards by about 0.12 Å, thus providing an indication of a stronger S-S dimer bond and a denser surface region. The complete atomic coordinates of the S-Co-S surface layers are determined in this analysis.
Disciplines
Publication Date
2007
DOI
10.1088/0953-8984/19/24/249001
Publisher Statement
Corrigendum
Different surface terminations have been perviously discussed in reference [12] of J. Phys.: Condens. Matter 19 156223 (i.e. Ying Jiu Jin and Jae Il Lee 2006 Phys. Rev. B 73 064405) and we inadvertently failed to properly cite this reference in the attribution of figure 3 of our paper.

Citation Information
Z. X. Yu, M. A. Van Hove, S. Y. Tong, David Wisbey, et al.. "The structure of the CoS2 (100)-(1×1) surface" Journal of Physics Condensed Matter Vol. 19 Iss. 24 (2007) ISSN: 1361648X
Available at: http://works.bepress.com/mavanhove/85/