Computer simulation of the sputtering of clusters
Harrison, D.E. Jr.
MetadataShow full item record
The formation of clusters of sputtered copper atoms from an argon-bombarded (100) copper surface has been simulated with a computer program which includes interatomic attractive forces. Dimer formation is very common. Most commonly, dimers are formed from atoms which were next-nearest neighbors in the crystal. Nearest-neighbor atom clustering is rare, and dimer formation by a single atom moving in a channel has not been observed, and could not be forced by artificial means. All multimer formation mechanisms depend strongly upon both the relatively low speed of the sputtered atoms and the relatively high speed of the knock-on atoms involved in the sputtering mechanisms. Strong evidence for trimer formation exists. Pairs of dimers with a common atom have been observed. No quadrimers have been identified, but structures which almost meet the stability criteria have been observed. (AIP)
The article of record as published may be found at http://dx.doi.org/10.1063/1.323014
Showing items related by title, author, creator and subject.
Harrison, D.E. Jr. (American Institute of Physics, 1981-06-01);A molecular dynamics simulation has been used to investigate the ion mass dependence of single-crystal atom ejection. Atom yield ratios, surface damage cross sections, atoms ejected per single ion (ASI) distributions, ...
Computer simulation of the angular dispersion of sputtered copper isotopes and a possible liquid splash effect Kelly, Patrick Wayne, Sr, (Monterey, California. Naval Postgraduate School, 1977-06);The NPS computer simulation model was modified to study the angular dispersion and ring of sputtering sites formation of sputtered copper isotopes. the sputtering ratio as a function of the ion mass and the microcrystallite ...
Computer simulation studies of sputtering and multimer formation from clean and oxygen reacted surfaces of titanium, vanadium and niobium. Mathis, Michael G. (Monterey, California. Naval Postgraduate School, 1983-12);The NPS computer simulation model was used to investigate the sputtering by 1.0 keV argon bombardment of clean and oxygen reacted monocrystalline titanium, vanadium and niobium. Variations in yield, energy and angular ...