抄録
Regularly aligned array structures of square and cross-shaped magnetic dots of sub-micrometer size an in silicon wafers were fabricated. It was found from magnetic force microscope observation that the spin vortices of adjacent square dots showed opposite chirality to each other, probably due to magnetostatic interaction. In the cross-shaped dot arrays, magnetic poles appeared at the end of each bar and a complicated contrast was seen at the crossing point. These observations are successfully explained by a three-dimensional micromagnetic calculation using the Landau-Lifshitz-Gilbert equation.
