Magnetization reversal mechanisms in assemblies of elongated single-domain particles

The existence of interaction domains in elongated single-domain materials has been confirmed using the Bitter pattern technique. Structural changes were observed on the basal and axial planes of the elongated single-domain materials and compared with the hysteresis loops. In order to explain the form and rearrangement of these domains a new magnetization reversal mechanism is proposed for elongated single-domain particle assemblies, involving lateral interactions during fanning.