Electrical measurements of the polarization in a moving magnetic vortex

Jun-ichiro Ohe; Barnes, Stewart E.; Hyun-Woo Lee; Maekawa, Sadamichi
September 2009
Applied Physics Letters;9/21/2009, Vol. 95 Issue 12, p123110
Academic Journal
We propose that the polarization of the moving magnetic vortex core can be detected by the electro- and spin-motive forces acting on the spin-polarized conduction electrons. With parameters appropriate to Permalloy, we have simulated the dynamics of a magnetic vortex core resulting from an applied oscillating magnetic field. We show that the polarization of the moving core can be detected by a simple electrical measurement.


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