Anomalous high-frequency modes of ‘‘missing-row’’ reconstructed (110) surfaces
- 15 October 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 38 (12) , 8131-8134
- https://doi.org/10.1103/physrevb.38.8131
Abstract
Unexpected high-frequency modes on the Au(110) ‘‘missing-row’’ reconstructed surface have been discovered in a molecular-dynamics study based on many-body interactions. A detailed study of mode polarization and dipole activity shows that the highest mode, around 20 meV, strongly modulates the first- to third-layer spacing, and should be observable in electron-energy-loss spectroscopy (EELS) experiments. A full study of temperature effects, including softening of high- and low-frequency surface modes, is also presented.Keywords
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