345 research outputs found
N\'eel-type skyrmion lattice in tetragonal polar magnet VOSeO
Formation of the triangular skyrmion-lattice is found in a tetragonal polar
magnet VOSeO. By magnetization and small-angle neutron scattering
measurements on the single crystals, we identify a cycloidal spin state at zero
field and a N\'eel-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 N\'eel-type skyrmions in bulk materials, and provide a unique occasion to
explore the physics of topological spin textures in polar magnets.Comment: 11 pages, 4 figures, supplemental material (7 pages
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