FePt nanocluster films for high-density magnetic recording

Y. F. Xu, M. L. Yan, D. J. Sellmyer

Research output: Contribution to journalReview articlepeer-review

34 Scopus citations


High anisotropy L1 0 ordered FePt thin films are considered to have high potential for use as high areal density recording media, beyond 1 Tera bit/in 2. In this paper, we review recent results on the synthesis and magnetic properties of L1 0 FePt nanocomposite films. Several fabrication methods have been developed to produce high-anisotropy FePt films: epitaxial and non-epitaxial growth of (001)-oriented FePt:X (X = Au, Ag, Cu, C, etc.) composite films that might be used for perpendicular media; monodispersed FePt nanocluster-assembled films grown with a gas-aggregation technique and having uniform cluster size and narrow size distribution; self-assembled FePt particles prepared with chemical synthesis by reduction/decomposition techniques, etc. The magnetic properties are controllable through variations in the nanocluster properties and nanostructure. FePt and related films show promise for development as heat-assisted magnetic recording media at extremely high areal densities. The self-assembled FePt arrays show potential for approaching the ultimate goal of single-grain-per-bit patterned media.

Original languageEnglish (US)
Pages (from-to)206-224
Number of pages19
JournalJournal of Nanoscience and Nanotechnology
Issue number1
StatePublished - Jan 2007


  • FePt
  • High Anisotropy
  • High-Density Media
  • Nanoclusters
  • Self-Assembly

ASJC Scopus subject areas

  • Bioengineering
  • General Chemistry
  • Biomedical Engineering
  • General Materials Science
  • Condensed Matter Physics


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