Surface diffusion modes for Pt dimers and trimers on Pt(001)
- 29 July 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 67 (5) , 622-625
- https://doi.org/10.1103/physrevlett.67.622
Abstract
Field-ion-microscope observations and molecular statics calculations using embedded-atom-method potentials have identified the surface diffusion modes for Pt dimers and trimers on Pt(001). Dimers migrate by a series of displacements involving exchange between one of the dimer atoms and a substrate atom and have a lower activation barrier for diffusion than monomers. Trimer diffusion involves both exchange and hopping displacements and has an activation barrier comparable to monomers.This publication has 11 references indexed in Scilit:
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