Bimeron nanoconfined design

Abstract

We report on the stabilization of the topological bimeron excitations in confined geometries. The Monte Carlo simulations for a ferromagnet with a strong Dzyaloshinskii-Moriya interaction revealed the formation of a mixed skyrmion-bimeron phase. The vacancy grid created in the spin lattice drastically changes the picture of the topological excitations and allows one to choose between the formation of a pure bimeron and skyrmion lattice. We found that the rhombic plaquette provides a natural environment for stabilization of the bimeron excitations. Such a rhombic geometry can protect the topological state even in the absence of the magnetic field.

5 pages, 7 figures

References in corpus (8)

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• Typical skyrmions versus bimerons: a long-distance competition in ferromagnetic racetracks
• Machine learning techniques to construct detailed phase diagrams for skyrmion systems
• Estimating Patterns of Classical and Quantum Skyrmion States