Direct observations of adatom–surface-atom replacement: Pt on Ni(110)
- 8 July 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 67 (2) , 216-219
- https://doi.org/10.1103/physrevlett.67.216
Abstract
Field-ion-microscope observations provide direct evidence that Pt adatoms replace Ni(110) surface atoms at temperatures above 105 K. The directions of the individual displacements in this replacement process are consistent with a model involving concerted motion of the adatom and substrate atom. The activation barrier for the exchange is estimated to be 0.28 eV.Keywords
This publication has 9 references indexed in Scilit:
- Self-diffusion on the reconstructed and nonreconstructed Ir(110) surfacesPhysical Review Letters, 1991
- Diffusion path for an Al adatom on Al(001)Physical Review Letters, 1990
- Displacement distribution and atomic jump direction in diffusion of Ir atoms on the Ir(001) surfacePhysical Review Letters, 1990
- Surface self-diffusion on Pt(001) by an atomic exchange mechanismPhysical Review Letters, 1990
- Field-ion microscopy and atom-probe mass spectroscopy of sulfur on the (111) plane of nickelSurface Science, 1984
- I n s i t u cleaning of nickel field-ion surfaces by neon ion bombardmentJournal of Vacuum Science & Technology A, 1984
- Single atom self-diffusion on nickel surfacesSurface Science, 1980
- Surface Diffusion by an Atomic Exchange MechanismPhysical Review Letters, 1980
- Diffusion of single adatoms of platinum, iridium and gold on platinum surfacesSurface Science, 1978