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Holographic imaging of magnetization in a single layer nano-contact spin transfer oscillator

Journal article
Authors Erick Omar Burgos Parra
Nick Bukin
Guillaume Beutier
Sohrab Sani
Horia Popescu
Stuart Cavill
Johan Åkerman
Nicolas Jaouen
Paul Keatley
Robert Hicken
Gerrit van der Laan
Feodor Ogrin
Published in IEEE transactions on magnetics
Volume 52
Issue 7
Pages article no. 6500304
ISSN 0018-9464
Publication year 2016
Published at Department of Physics (GU)
Pages article no. 6500304
Language en
Subject categories Magnetism, Nano Technology


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 (HERALDO) technique. Transport measurements on a Pd(5)-Cu(20)-Ni81Fe19(7)-Cu(2)-Pd(2) (in nm) stack with a 100 nm diameter nano-contact reveal the presence of vortex dynamics. Magnetic images of the device for injected current values of 24mA and -24mA suggest that a vortex has been ejected from the nano-contact and become pinned at the edge of the region that is visible through the Au mask.

Page Manager: Webmaster|Last update: 9/11/2012

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