TY - JOUR
T1 - Ro-vibrational population of sputtered metal dimers
T2 - the influence of unimolecular decomposition
AU - Wucher, A.
AU - Garrison, B. J.
PY - 1993/7/2
Y1 - 1993/7/2
N2 - The vibrational and rotational states of metal dimers sputtered by keV ion impact were studied by a molecular dynamics simulation. Particular emphasis was put on the role of dimers originating from unimolecular decomposition of large unstable ejected clusters. It is seen that the contribution of these so called "secondary" dimers to the total dimer yield is non-negligible. In addition, secondary dimers are shown to be "cold" compared to "primary" dimers identified immediately after the sputtering event. Hence, the calculated vibrational and rotational temperatures are lowered if secondary fragmentation products are included into the treatment.
AB - The vibrational and rotational states of metal dimers sputtered by keV ion impact were studied by a molecular dynamics simulation. Particular emphasis was put on the role of dimers originating from unimolecular decomposition of large unstable ejected clusters. It is seen that the contribution of these so called "secondary" dimers to the total dimer yield is non-negligible. In addition, secondary dimers are shown to be "cold" compared to "primary" dimers identified immediately after the sputtering event. Hence, the calculated vibrational and rotational temperatures are lowered if secondary fragmentation products are included into the treatment.
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U2 - 10.1016/0168-583X(93)96039-F
DO - 10.1016/0168-583X(93)96039-F
M3 - Article
AN - SCOPUS:0009610748
SN - 0168-583X
VL - 82
SP - 352
EP - 355
JO - Nuclear Inst. and Methods in Physics Research, B
JF - Nuclear Inst. and Methods in Physics Research, B
IS - 2
ER -