TY - JOUR
T1 - An investigation of adsorption-induced smoothing mechanisms in pt/pt(lll) homoepitaxy
AU - Wang, Ruoping
AU - Fichthorn, Kristen A.
N1 - Funding Information:
This work was funded by the National Science Foundation under grant CTS-9058013. The computer workstations were provided by a NSF equipment grant. We acknowledge helpful discussions with the DePristo group at Iowa State University, in particular, with Dr. David E. Sanders. We also thank Mr. Prakash Balan for his help with the computer animation.
PY - 1993/10/1
Y1 - 1993/10/1
N2 - We report the results of a molecular dynamics study of the deposition of Pt atoms on a Pt(l 11) surface. The interatomic potential in our study is generated from Corrected Effective Medium theory. The transient mobility, the interaction between an atom and a ascending step edge, and the incorporation of an atom into a descending step edge have been investigated. No significant transient mobility is observed. Adatoms exchange with atoms at the descending step edges rather than jumping over the edges, and the exchange can involve two or more atoms. Our simulations indicate that the exchange is assisted by instantaneous momentum transfer between the impinging atom and the island atoms.
AB - We report the results of a molecular dynamics study of the deposition of Pt atoms on a Pt(l 11) surface. The interatomic potential in our study is generated from Corrected Effective Medium theory. The transient mobility, the interaction between an atom and a ascending step edge, and the incorporation of an atom into a descending step edge have been investigated. No significant transient mobility is observed. Adatoms exchange with atoms at the descending step edges rather than jumping over the edges, and the exchange can involve two or more atoms. Our simulations indicate that the exchange is assisted by instantaneous momentum transfer between the impinging atom and the island atoms.
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U2 - 10.1080/08927029308022503
DO - 10.1080/08927029308022503
M3 - Article
AN - SCOPUS:0027800663
SN - 0892-7022
VL - 11
SP - 105
EP - 120
JO - Molecular Simulation
JF - Molecular Simulation
IS - 2-4
ER -