TY - JOUR
T1 - Influences of thermal spikes in ion beam mixing
AU - Peak, David
AU - Averback, R. S.
N1 - * Work supported by the US Department of Energy. ** Permanent address: Physics Department, Union College, Schenectady, NY 12308 US.
PY - 1985/3
Y1 - 1985/3
N2 - Guided by the results of molecular dynamics simulations, we develop a thermal spike model for the relaxation of collision cascades in which the hot zone has mobile, reacting defects and cools by thermal diffusion. Marker atoms within such spikes are taken to migrate by radiation enhanced diffusion which is governed by the locally transient temperatures and defect concentrations. The atomic mixing associated with such motions is examined, on the basis of the model, for a variety of ion-target systems. The dependences of spike mixing on diffusion mechanism, irradiation ion and energy, and sample temperature are discussed.
AB - Guided by the results of molecular dynamics simulations, we develop a thermal spike model for the relaxation of collision cascades in which the hot zone has mobile, reacting defects and cools by thermal diffusion. Marker atoms within such spikes are taken to migrate by radiation enhanced diffusion which is governed by the locally transient temperatures and defect concentrations. The atomic mixing associated with such motions is examined, on the basis of the model, for a variety of ion-target systems. The dependences of spike mixing on diffusion mechanism, irradiation ion and energy, and sample temperature are discussed.
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U2 - 10.1016/0168-583X(85)90433-1
DO - 10.1016/0168-583X(85)90433-1
M3 - Article
AN - SCOPUS:0022029122
SN - 0168-583X
VL - 7-8
SP - 561
EP - 565
JO - Nuclear Inst. and Methods in Physics Research, B
JF - Nuclear Inst. and Methods in Physics Research, B
IS - PART 2
ER -