Thermal relaxation of Ag(111)
- 15 December 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 50 (23) , 17693-17696
- https://doi.org/10.1103/physrevb.50.17693
Abstract
We present the results of an embedded-atom-method molecular-dynamics simulation of the thermal relaxation of Ag(111). Contrary to recent medium-energy ion-scattering experiments [P. Statiris et al., Phys. Rev. Lett. 72, 3574 (1994)], which find that a change in the sign of the surface relaxation takes place upon heating above 750 K (from contraction to expansion), we find the surface layer to relax inwards at all temperatures. The calculated mean-square amplitudes of vibration, on the other hand, agree quite well with experiment. The model, in addition, shows evidence of premelting at a temperature of about 1000 K.This publication has 20 references indexed in Scilit:
- Surface anharmonicities and disordering on Ni(100) and Ni(110)Physical Review B, 1994
- Temperature dependent sign reversal of the surface contraction of Ag(111)Physical Review Letters, 1994
- Multilayer relaxation and surface energies of fcc and bcc metals using equivalent crystal theorySurface Science, 1993
- The embedded-atom method: a review of theory and applicationsMaterials Science Reports, 1993
- Anharmonic effects at the Ni(100) surfacePhysical Review B, 1993
- Anomalous thermal expansion of Ni(001)Physical Review Letters, 1990
- Evidence for anomalous thermal expansion at a crystal surfacePhysical Review Letters, 1987
- Ion beam crystallography of surfaces and interfacesSurface Science Reports, 1985
- Static and dynamic displacements of nickel atoms in clean and oxygen covered Ni(001) surfacesSurface Science, 1983
- Calculation of Dynamical Surface Properties of Noble-Gas Crystals. I. The Quasiharmonic ApproximationPhysical Review B, 1969