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 journalArticle

16 Scopus citations

Abstract

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
Volume1
Issue number6
DOIs
StatePublished - Jun 24 2009

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Keywords

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

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    Patel, R. N., Heitsch, A. T., Hyun, C., Smilgies, D. M., De Lozanne, A., Loo, Y. L., & Korgel, B. A. (2009). Printed magnetic FePt nanocrystal films. ACS Applied Materials and Interfaces, 1(6), 1339-1346. https://doi.org/10.1021/am900237d