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    Chapter and Conference Paper

    Halfvortices in Flat Nanomagnets

    We discuss a new type of topological defect in XY systems for which the O (2) symmetry is broken in the presence of a boundary. Of particular interest is the appearance of such defects in nanomagnets with a plana...

    Gia-Wei Chern, David Clarke, Hyun Youk, Oleg Tchernyshyov in Quantum Magnetism (2008)