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  • Non-collinear ground state ...
    Rakhmanova, G R; Osipov, A N; Ilin, D I; Shushakova, I V; Iorsh, I V

    Journal of physics. Conference series, 11/2021, Letnik: 2015, Številka: 1
    Journal Article

    Abstract We demonstrate that four-spin interactions in crystals with D 3h point group of symmetry can cause a phase transition from a collinear state to a non-collinear magnetic ground state (such as magnetic vortices or magnetic skyrmions), while all anti-symmetric chiral terms are forbidden by symmetry in such crystals. Moreover, D 3h point group rather common among two dimensional magnets. Taking into account possible four-spin chiral exchange interactions is important for understanding noncollinear magnetic order in these systems. We also address a possible stabilization of bimerons by the same contribution.