Rectangular and square skyrmion crystals on a centrosymmetric square lattice with easy-axis anisotropy
Satoru Hayami
Abstract:We report our theoretical results on the emergence of rectangular-and square-shaped magnetic skyrmion crystals on a centrosymmetric square lattice with magnetic anisotropy. By performing the simulated annealing for a frustrated spin model with an easy-axis single-ion anisotropy on a square lattice, we find that a competition of the interactions in momentum space gives rise to the formation of two skyrmion crystals, where the skyrmion cores are aligned in a rectangle-or squarelattice way. Especially, the intera… Show more
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