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Surface lattice dynamics of thep(3×1)−Ag(110) system |
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| Authors: | G Bracco R Tatarek |
| Institution: | (1) Centro di Fisica delle Superfici e Basse Temperature del CNR, Genova, Italia;(2) Dipartimento di Fisica dell'Università, Unità di Genova del Consorzio INFM, via Dodecaneso 33, 16146 Genova, Italia;(3) Present address: I.F.I., P.le Kennedy, Pad. D, 16129 Genova, Italy |
| Abstract: | Summary We present a detailed study of the lattice dynamics of thep(3×1)O-Ag(110) surface to determine the structural changes of the substrate upon oxygen chemisorption. The lattice dynamical calculations are carried out using central forces with nearest-neighbour interactions and assuming different surface structures. The limits of the models are discussed. A comparison with the dispersion curves measured along two azimuthal directions by means of energy-resolved He-atom scattering unambiguously shows the reconstruction of the silver substrate. In honour of Prof. Fausto Fumi on the occasion of his retirement from teaching. |
| Keywords: | Surface dynamics and interface vibrations |
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