Nucleation-promoted L1 ordering in FePt thin films with ultrasmall grain size

X. H. Li, B. T. Liu, Hongyu Sun, W. Li, X. Y. Zhang

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

FePt thin films with an ultrasmall grain size of ∼3.4 nm were successfully prepared by employing a relatively high sputtering pressure of 4 Pa that produces deposited target atoms or clusters with low energy. The L1 ordering in the FePt thin films is dominantly dependent on the nucleation of ordered domains rather than their growth which is usually observed in the films with relatively large grain size. The nucleation-promoted L1 ordering makes a reduction in grain growth and thus yields the L1-FePt thin films with a uniform and small grain size below 10 nm.
Original languageEnglish
Article number135009
JournalJournal of Physics D: Applied Physics
Volume41
Issue number13
Number of pages4
ISSN0022-3727
DOIs
Publication statusPublished - 2008
Externally publishedYes

Keywords

  • Epitaxial growth
  • Thick films
  • Grain sizes
  • Low energies
  • Sputtering pressures

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