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From the same journal

Holographic Magnetic Imaging of Single-Layer Nanocontact Spin-Transfer Oscillators

Research output: Contribution to journalArticle

Published copy (DOI)


  • Erick O. Burgos Parra
  • Nick Bukin
  • Maxime Dupraz
  • Guillaume Beutier
  • Sohrab Redjai Sani
  • Horia Popescu
  • Stuart A. Cavill
  • Johan Akerman
  • Nicolas Jaouen
  • Paul S. Keatley
  • Robert J. Hicken
  • Gerrit Van Der Laan
  • Feodor Y. Ogrin


Publication details

JournalAdvances in magnetics
DateE-pub ahead of print - 11 Feb 2016
DatePublished (current) - 1 Jul 2016
Issue number7
Number of pages4
Early online date11/02/16
Original languageEnglish


Time-averaged images of the magnetization within single-layer spin-transfer oscillators have been obtained using the holography with extended reference by autocorrelation linear differential operator technique. Transport measurements on a Pd(5)-Cu(20)-Ni81Fe19(7)-Cu(2)-Pd(2) (in nanometers) stack with a 100 nm diameter nanocontact reveal the presence of vortex dynamics. Magnetic images of the device for injected current values of 24 and-24 mA suggest that a vortex has been ejected from the nanocontact and become pinned at the edge of the region that is visible through the Au mask.

    Research areas

  • HERALDO, Magnetic vortex, Spin transfer torque

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