Equilibrium magnetization patterns in network nanostructures

Equilibrium magnetization patterns in network nanostructures composed of ma ny-armed junctions are obtained by means of numerical simulation. It is sho wn that different magnetization patterns can be characterized by a total ma gnetic charge accumulated near the junction. In general, N-armed junction m ay have 2(N) magnetic configurations, most of them being equivalent each ot her. The reduced magnetic charge of an N-armed junction may have the follow ing values: N, (N - 2),..., -N. For square network for example, there are o nly 4 different configurations with total reduced magnetic charge equals 0, +/-2, or +/-4. This property opens a new possibility for high density info rmation storage.