Stability of metal vicinal surfaces revisited |
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Authors: | Desjonquères M C Spanjaard D Barreteau C Raouafi F |
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Institution: | DSM/DRECAM/SPCSI, CEA Saclay, F-91191 Gif sur Yvette, France. |
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Abstract: | The stability of metal vicinal surfaces with respect to faceting is investigated using empirical potentials as well as electronic structure calculations. It is proven that for a wide class of empirical potentials all vicinal surfaces between (100) and (111) are unstable at 0 K when the role of third and farther nearest neighbors is negligible. However, electronic structure calculations reveal that the answer concerning the stability of vicinal surfaces is not so clear-cut. Finally, it is shown that surface vibrations at finite temperatures have little effect on the stability of vicinal surfaces. |
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