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  • Title: Néel-Type Skyrmion Lattice in the Tetragonal Polar Magnet VOSe_{2}O_{5}.
    Author: Kurumaji T, Nakajima T, Ukleev V, Feoktystov A, Arima TH, Kakurai K, Tokura Y.
    Journal: Phys Rev Lett; 2017 Dec 08; 119(23):237201. PubMed ID: 29286691.
    Abstract:
    The formation of the triangular Skyrmion lattice is found in a tetragonal polar magnet VOSe_{2}O_{5}. By magnetization and small-angle neutron scattering measurements on the single crystals, we identify a cycloidal spin state at zero field and a Néel-type Skyrmion-lattice phase under a magnetic field along the polar axis. Adjacent to this phase, another magnetic phase of an incommensurate spin texture is identified at lower temperatures, tentatively assigned to a square Skyrmion-lattice phase. These findings exemplify the versatile features of Néel-type Skyrmions in bulk materials, and provide a further opportunity to explore the physics of topological spin textures in polar magnets.
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