On the validity of a thermal spike mixing model for low-Z metals

P. Børgesen, D. A. Lilienfeld, H. H. Johnson, T. L. Alford, R. E. Wistrom

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Low temperature ion beam mixing rates for Cu-Ti, Ni-Ti, and Fe-Ti layers have been found to be significantly lower than predicted by a popular semi-empirical thermal spike model. It has been proposed that the unavoidable hydrogen contamination of the as-deposited Ti films may have reduced the mixing rates, but the measurement of even lower mixing rates for Fe-V and Fe-Co bilayers shows the discrepancy to be more fundamental. Still, a systematic dependence on heat of mixing suggests that some sort of diffusional (thermal spike?) mechanism is involved.

Original languageEnglish (US)
Pages (from-to)1364-1366
Number of pages3
JournalJournal of Applied Physics
Volume68
Issue number3
DOIs
StatePublished - Dec 1 1990
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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