Formation and diffusion of S-decorated Cu clusters on Cu(111).

  title={Formation and diffusion of S-decorated Cu clusters on Cu(111).},
  author={Peter J. Feibelman},
  journal={Physical review letters},
  volume={85 3},
S-decorated Cu trimers are a likely agent of S-enhanced Cu transport between islands on Cu(111). According to ab initio calculations, excellent S bonding to trimer-Cu dangling valence results in an ad- Cu(3)S(3) formation energy of only approximately 0.28 eV, compared to 0.79 eV for a self-adsorbed Cu atom, and a diffusion barrier < or =0. 35 eV. 

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