3 papers
cond-mat.stat-mech2001
Vacancy diffusion in the Cu(001) surface II: Random walk theory
E. Somfai, R. van Gastel, S. B. van Albada +2
We develop a version of the vacancy mediated tracer diffusion model, which follows the properties of the physical system of In atoms diffusing within the top layer of Cu(001) terra…
cond-mat.mtrl-sci2001
Vacancy diffusion in the Cu(001) surface I: An STM study
R. van Gastel, E. Somfai, S. B. van Albada +2
We have used the indium/copper surface alloy to study the dynamics of surface vacancies on the Cu(001) surface. Individual indium atoms that are embedded within the first layer of…
cond-mat.mtrl-sci2000
Nothing moves a surface: vacancy mediated surface diffusion
R. van Gastel, E. Somfai, S. B. van Albada +2
We report scanning tunneling microscopy observations, which imply that all atoms in a close-packed copper surface move frequently, even at room temperature. Using a low density of…