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A detailed numerical analysis of the magnetization reversal processes inmultisegmented nanowire arrays was developed. The nanowires have a long aspectratio and are formed by magnetic and non-magnetic sections alternately arrangedin such a way that the array resembles magnetic layers separated bynon-magnetic layers. Attention has been focused on the influence ofmagnetostatic interaction in the magnetic pattern formation of these magneticnanostructures. Results from a magnetic correlation function among layers showthat three different reversal modes can be detected depending on the number anddistance between the magnetic segments. As a consequence of the differentreversal modes, a non-monotonic behavior of the annihilation field in functionof the distance between the layers is evidenced. Thus, these results areimportant for the production of magnetic devices with multisegmented nanowirearrays.

Magnetic reversal modes in multisegmented nanowire arrays with long aspect ratio