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

Authors
Ghose, SK Goswami, DK Rout, B Dev, BN Kuri, G Materlik, G
Citation
Sk. Ghose et al., Ion-irradiation-induced mixing, interface broadening and period dilation in Pt/C multilayers, APPL PHYS L, 79(4), 2001, pp. 467-469
Citations number
7
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
00036951 → ACNP
Volume
79
Issue
4
Year of publication
2001
Pages
467 - 469
Database
ISI
SICI code
0003-6951(20010723)79:4<467:IMIBAP>2.0.ZU;2-Q
Abstract
Pt/C multilayers of nanometric dimension have been irradiated with 2-MeV-Au ions to a fluence of 1x10(14) ions/cm(2) and analyzed by x-ray reflectivit y and x-ray standing wave measurements. The multilayer period has expanded by similar to9%, the expansion of the Pt layers being larger than that of t he 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 use d to explain the observed effects. (C) 2001 American Institute of Physics.