Bimeron nanoconfined design

I. A. Iakovlev; O. M. Sotnikov; V. V. Mazurenko

doi:10.1103/physrevb.97.184415

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arXiv · 1801.07896

Bimeron nanoconfined design

I. A. Iakovlev·O. M. Sotnikov·V. V. Mazurenko

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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.

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I. A. Iakovlev, O. M. Sotnikov, V. V. Mazurenko. 2018-01-24. Bimeron nanoconfined design. https://doi.org/10.1103/physrevb.97.184415

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