Shape anisotropy and magnetic domain structures in striped monolayers
Abstract
We study the effect of dipolar interactions on a magnetic striped monolayer with a microscopic unit cell of square symmetry, and of size (Nx× Ny) spins. Even if the aspect ratio r=Nx/Ny is very large, an in-plane shape anisotropy is always negligible, except if Ny is fairly small (Ny<40). In-plane domains are not possible, except for values of the dipolar coupling larger than the domain wall energy.
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