Micromagnetic simulations and analytical description of magnetic configurations in nanosized magnets

We report on micromagnetic simulations of magnetization distributions in infinite and laterally limited ultrathin magnets of different geometries. We reveal the crucial role of the finite-size effect on magnetization states in nanowires and disks. In low-perpendicular-anisotropy nanomagnets, out-of-plane magnetization states can be achieved by varying geometry and/or lateral size of the sample.