Abstract
Magnetic field-driven domain wall motion is investigated in closely spaced sub-100 nm wide Co nanowires. Anticorrelations appear in the spatial distribution of pinning sites within weakly interacting nanowires, with a reduced probability of pinning adjacent to another pinning site over a mean correlation length similar to the line width roughness. In contrast, strong magnetostatic interactions between domain walls in adjacent nanowires eliminate the correlations, reducing the domain wall propagation distance for a given applied magnetic field.
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