Irradiation effects of 100 MeV Ag ion irradiation on Ni/C and Pt/C multilay
ers have been studied using X-ray reflectivity measurements. Modifications
are observed in both the multilayers at (dE/dx)(e) values much below the th
reshold values for Ni and Pt. This effect is attributed to the discontinuou
s nature of the metal layers. In both the multilayers interfacial roughness
increases with irradiation dose. While Ni/C multilayers exhibit large ion-
beam induced intermixing, no observable intermixing is observed in the case
of Pt/C multilayer. This difference in the behavior of the two systems sug
gests a significant role for chemically guided defect motion in the mixing
process associated with swift heavy ion irradiation. (C) 1997 Elsevier Scie
nce B.V. All rights reserved.