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Abstract:
The vibrational frequencies of halogens adsorbed on Ag(100) are calculated. The frequency of a single adsorbed atom vibration perpendicular to the surface is obtained from AgX (X = F, Cl, Br, I) crystal frequencies. Interaction between dipoles consisting of the effective charge on the adsorbed atom and its induced image charge produces a coverage dependent frequency. The effective charge on the adsorbed atom is assumed to be 1.0 e, while the electronic polarizability of the real-plus-image atom system is assumed to be twice the electronic polarizability of X-. At full coverage, the calculated frequencies for the k = O modes are 437, 241, 150, and 113/cm respectively for X = F, C, Br, I, which compare well with experimental values, and these frequencies are assigned to external vibrational modes of halogen atoms adsorbed on silver. (Author)
| Description: |
Technical rept. |
| Pages: |
23 |
| Report Date: |
17 JUL 1980 |
| Contract Number: |
N0001477C0209, DAAG2977G0020 |
| Report Number: |
A466780 |
Report Unavailable |
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