Ion-irradiation-induced mixing, interface broadening and period dilation in Pt/C multilayers

Ghose, S. K. ; Goswami, D. K. ; Rout, B. ; Dev, B. N.

Woodbury, NY : American Institute of Physics (AIP)
Published 2001
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Pt/C multilayers of nanometric dimension have been irradiated with 2-MeV-Au ions to a fluence of 1×1014 ions/cm2 and analyzed by x-ray reflectivity and x-ray standing wave measurements. The multilayer period has expanded by ∼9%, the expansion of the Pt layers being larger than that of the C layers. Ion-induced displacement of atoms across the interfaces led to an increased interface roughness and an increase of 2 at. % Pt in C layers. Monte Carlo simulations for ion-induced atomic displacement have been used to explain the observed effects. © 2001 American Institute of Physics.
Type of Medium:
Electronic Resource
URL: