Formation and diffusion of S-decorated Cu clusters on Cu(111) |
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Authors: | Feibelman P J |
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Institution: | Sandia National Laboratories, Albuquerque, New Mexico 87185-1413, USA. |
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Abstract: | 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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