410 citations · 2.6k across the 37 of their papers we have counts for
22 papers · 1 filter
Embedded skyrmion bags in thin films of chiral magnets
Luyan Yang, Andrii S. Savchenko, Fengshan Zheng +5
Magnetic skyrmions are topologically nontrivial spin configurations that possess particle-like properties. Earlier research was mainly focused on a specific type of skyrmion with t…
Skyrmions and antiskyrmions in monoaxial chiral magnets
Vladyslav M. Kuchkin, Nikolai S. Kiselev
We show that competition between local interactions in monoaxial chiral magnets provides the stability of two-dimensional (2D) solitons with identical energies but opposite topolog…
Heliknoton in a film of cubic chiral magnet
Vladyslav M. Kuchkin, Nikolai S. Kiselev, Filipp N. Rybakov +3
Cubic chiral magnets exhibit a remarkable diversity of two-dimensional topological magnetic textures, including skyrmions. However, the experimental confirmation of topological sta…
Tailed skyrmions -- an obscure branch of magnetic solitons
Vladyslav M. Kuchkin, Nikolai S. Kiselev, Pavel F. Bessarab
We report tailed skyrmions -- a new class of stable soliton solutions of the 2D chiral magnet model. Tailed skyrmions have elongated shapes and emerge in a narrow range of fields n…
Diversity of states in a chiral magnet nanocylinder
Andrii S. Savchenko, Fengshan Zheng, Nikolai S. Kiselev +4
The diversity of three-dimensional magnetic states in a FeGe nanocylinder is studied using micromagnetic simulations and off-axis electron holography in the transmission electron m…
Chiral standing spin waves in skyrmion lattice
Andrii S. Savchenko, Vladyslav M. Kuchkin, Filipp N. Rybakov +2
This work studies the resonance excitations of the three-dimensional skyrmions lattice in the finite thickness plate of an isotropic chiral magnet using spin dynamics simulations.…
Homotopy transitions and 3D magnetic solitons
Vladyslav M. Kuchkin, Nikolai S. Kiselev
This work provides a concept for three-dimensional magnetic solitons based on mapping the homotopy path between various two-dimensional solutions onto the third spatial axis. The r…
Thermal generation of droplet soliton in chiral magnet
Vladyslav M. Kuchkin, Pavel F. Bessarab, Nikolai S. Kiselev
Controlled creation of localized magnetic textures beyond conventional -skyrmions is an important problem in the field of magnetism. Here by means of spin dynamics simulations,…
Geometry and Symmetry in Skyrmion Dynamics
Vladyslav M. Kuchkin, Ksenia Chichay, Bruno Barton-Singer +4
The uniform motion of chiral magnetic skyrmions induced by a spin-transfer torque displays an intricate dependence on the skyrmions' topological charge and shape. We reveal surpris…
Turning chiral skyrmion inside out
Vladyslav M. Kuchkin, Nikolai S. Kiselev
The stability of two-dimensional chiral skyrmions in a tilted magnetic field is studied. It is shown that by changing the direction of the field and its magnitude, one can continuo…
Coupled quasimonopoles in chiral magnets
G. P. Müller, F. N. Rybakov, H. Jónsson +2
Magnetic singularities, also known as magnetic monopoles or Bloch points, represent intriguingphenomena in nanomagnetism. We show that a pair of coupled Bloch points may appear as…
Spirit: Multifunctional Framework for Atomistic Spin Simulations
Gideon P. Müller, Markus Hoffmann, Constantin Disselkamp +6
The \textit{Spirit} framework is designed for atomic scale spin simulations of magnetic systems of arbitrary geometry and magnetic structure, providing a graphical user interface w…
Duplication, collapse and escape of magnetic skyrmions revealed using a systematic saddle point search method
Gideon P. Müller, Pavel F. Bessarab, Sergei M. Vlasov +5
Various transitions that a magnetic skyrmion can undergo are found in calculations using a method for climbing up the energy surface and converging onto first order saddle points.…
Lifetime of racetrack skyrmions
P. F. Bessarab, G. P. Müller, I. S. Lobanov +7
The skyrmion racetrack is a promising concept for future information technology. There, binary bits are carried by nanoscale spin swirls -- skyrmions -- driven along magnetic strip…
Antiskyrmions stabilized at interfaces by anisotropic Dzyaloshinskii-Moriya interaction
Markus Hoffmann, Bernd Zimmermann, Gideon P. Müller +4
Chiral magnets are an emerging class of topological matter harbouring localized and topologically protected vortex-like magnetic textures called skyrmions, which are currently unde…
Switching of chiral magnetic skyrmions by picosecond magnetic field pulses via transient topological states
Changhoon Heo, Nikolai S. Kiselev, Ashis Kumar Nandy +2
Magnetic chiral skyrmions are vortex like spin structures that appear as stable or meta-stable states in magnetic materials due to the interplay between the symmetric and antisymme…
Chiral skyrmions in thin magnetic films: new objects for magnetic storage technologies?
N. S. Kiselev, A. N. Bogdanov, R. Schäfer +1
Axisymmetric magnetic lines of nanometer sizes (chiral vortices or skyrmions) have been predicted to exist in a large group of noncentrosymmetric crystals more than two decades ago…
Magnetic remanent states in antiferromagnetically coupled multilayers
N. S. Kiselev, U. K. Roessler, A. N. Bogdanov +1
In antiferromagnetically coupled multilayers with perpendicular anisotropy unusual multidomain textures can be stabilized due to a close competition between long-range demagnetizat…
Topological defects in antiferromagnetically coupled multilayers with perpendicular anisotropy
N. S. Kiselev, U. K. Roessler, A. N. Bogdanov +1
A rich variety of specific multidomain textures recently observed in antiferromagnetically coupled multilayers with perpendicular anisotropy include regular (equilibrium) multidoma…
Theory of stripe domains in magnetic shape memory alloys
N. S. Kiselev, I. E. Dragunov, A. T. Onisan +2
The evolution of multivariant patterns in thin plates of magnetic shape memory materials with an applied magnetic field was studied theoretically. A geometrical domain-model is con…
Theoretical analysis of magnetic force microscopy contrast in multidomain states of magnetic superlattices with perpendicular anisotropy
N. S. Kiselev, I. E. Dragunov, V. Neu +2
Recently synthesized magnetic multilayers with strong perpendicular anisotropy exhibit unique magnetic properties including the formation of specific multidomain states. In particu…
Exchange shift of stripe domains in antiferromagnetically coupled multilayers
N. S. Kiselev, I. E. Dragunov, U. K. Roessler +1
Antiferromagnetically coupled multilayers with perpendicular anisotropy, as [CoPt]/Ru, Co/Ir, Fe/Au, display ferromagnetic stripe phases as the ground states. It is theoretically s…