142 citations · 2.5k across the 82 of their papers we have counts for
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Spontaneous deformation of flexible ferromagnetic ribbons induced by Dzyaloshinskii-Moriya interaction
Kostiantyn V. Yershov, Volodymyr P. Kravchuk, Denis D. Sheka +2
Here, we predict the effect of the spontaneous deformation of a flexible ferromagnetic ribbon induced by Dzyaloshinskii-Moriya interaction (DMI). The geometrical form of the deform…
Spin eigen-excitations of an antiferromagnetic skyrmion
Volodymyr P. Kravchuk, Olena Gomonay, Denis D. Sheka +5
We theoretically predict and classify the localized modes of a skyrmion in a collinear uniaxial antiferromagnet and discuss how they can be excited. As a central result, we find tw…
Spin eigen-excitations of the magnetic skyrmion and problem of the effective mass
Volodymyr P. Kravchuk, Denis D. Sheka, Ulrich K. Rößler +2
Properties of magnon modes localized on a ferromagnetic skyrmion are studied. Three types of possible asymptotic behavior of the modes eigenfrequencies are found for the case of la…
Multiplet of skyrmion states on a curvilinear defect: skyrmion lattices as a ground state
Volodymyr P. Kravchuk, Denis D. Sheka, Oleksii M. Volkov +4
We show that the presence of a localized curvilinear defect drastically changes magnetic properties of a thin perpendicularly magnetized ferromagnetic film. For a large enough defe…
Topologically stable magnetization states on a spherical shell: curvature stabilized skyrmions
Volodymyr P. Kravchuk, Ulrich K. Rößler, Oleksii M. Volkov +6
Topologically stable structures include vortices in a wide variety of matter, such as skyrmions in ferro- and antiferromagnets, and hedgehog point defects in liquid crystals and fe…
Vortex Polarity Switching in Magnets with Surface Anisotropy
Oleksandr V. Pylypovskyi, Denis D. Sheka, Volodymyr P. Kravchuk +1
Vortex core reversal in magnetic particle is essentially influenced by a surface anisotropy. Under the action of a perpendicular static magnetic field the vortex core undergoes a s…