Printed magnetic FePt nanocrystal films

Reken N. Patel, Andrew T. Heitsch, Changbae Hyun, Detlef M. Smilgies, Alex De Lozanne, Yueh Lin Loo, Brian A. Korgel

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


Patterned monolayers and multilayers of FePt nanocrystals were printed onto substrates by first assembling nanocrystals on a Langmuir-Blodgett (LB) trough and then lifting them onto prepatterned polydimethylsiloxane (PDMS) stamps, followed by transfer printing onto the substrate. Patterned features, including micrometer-size circles, lines, and squares, could be printed using this approach. The magnetic properties of the printed nanocrystal films were also measured using magnetic force microscopy (MFM). Room-temperature MFM could detect a remanent (permanent) magnetization from multilayer (>3 nanocrystals thick) films of chemically ordered L1 0 FePt nanocrystals.

Original languageEnglish (US)
Pages (from-to)1339-1346
Number of pages8
JournalACS Applied Materials and Interfaces
Issue number6
StatePublished - Jun 24 2009

All Science Journal Classification (ASJC) codes

  • General Materials Science


  • Langmuir-Blodgett
  • iron platinum
  • magnetic force microscopy
  • magnetic memory
  • magnetic nanocrystals
  • stamping


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