Holographic imaging of magnetization in a single layer nano-contact spin transfer oscillator
Parra, EOB; Bukin, N; Dupraz, M; et al.Beutier, G; Sani, SR; Popescu, H; Cavill, SA; Akerman, J; Jaouen, N; Keatley, PS; Hicken, RJ; van der Laan, G; Ogrin, Feodor Y.
Date: 11 February 2016
Journal
IEEE Transactions on Magnetics
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Publisher DOI
Abstract
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)- Ni 81 Fe 19 (7)-Cu(2)-Pd(2) (in nm) stack with a 100 nm diameter nano-contact ...
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)- Ni 81 Fe 19 (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.
Physics and Astronomy
Faculty of Environment, Science and Economy
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