Abstract
We report on the effects of electrical contact configuration on the giant magnetoresistance (GMR) response of NiFe∕Cu∕Co pseudo-spin-valve elliptical rings. Room temperature GMR measurements show different approaches to remanence, depending on the position of the voltage leads with respect to the curvature of the rings. Computational analysis of micromagnetic simulations reproduces these experimental trends, which result from changes in the relative alignment between the NiFe and Co layers in different regions of the rings.
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