Search Results - "Slastikov, Valeriy"
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A micromagnetic theory of skyrmion lifetime in ultrathin ferromagnetic films
Published in Proceedings of the National Academy of Sciences - PNAS (19-07-2022)“…We use the continuum micromagnetic framework to derive the formulas for compact skyrmion lifetime due to thermal noise in ultrathin ferromagnetic films with…”
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Domain structure of ultrathin ferromagnetic elements in the presence of Dzyaloshinskii–Moriya interaction
Published in Proceedings of the Royal Society. A, Mathematical, physical, and engineering sciences (01-01-2017)“…Recent advances in nanofabrication make it possible to produce multilayer nanostructures composed of ultrathin film materials with thickness down to a few…”
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Magnetic skyrmions under confinement
Published in Communications in mathematical physics (17-06-2024)“…Commun. Math. Phys. 404, 1571-1605 (2023) We present a variational treatment of confined magnetic skyrmions in a minimal micromagnetic model of ultrathin…”
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Symmetry and Multiplicity of Solutions in a Two-Dimensional Landau–de Gennes Model for Liquid Crystals
Published in Archive for rational mechanics and analysis (01-09-2020)“…We consider a variational two-dimensional Landau–de Gennes model in the theory of nematic liquid crystals in a disk of radius R . We prove that under a…”
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5
Magnetic Skyrmions Under Confinement
Published in Communications in mathematical physics (01-12-2023)“…We present a variational treatment of confined magnetic skyrmions in a minimal micromagnetic model of ultrathin ferromagnetic films with interfacial…”
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Domain walls in the coupled Gross–Pitaevskii equations with the harmonic potential
Published in Calculus of variations and partial differential equations (01-10-2022)“…We study the existence and variational characterization of steady states in a coupled system of Gross–Pitaevskii equations modeling two-component Bose-Einstein…”
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Engineering Curvature-Induced Anisotropy in Thin Ferromagnetic Films
Published in Physical review letters (17-08-2017)“…We investigate the effect of large curvature and dipolar energy in thin ferromagnetic films with periodically modulated top and bottom surfaces on…”
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Landau-de Gennes Corrections to the Oseen-Frank Theory of Nematic Liquid Crystals
Published in Archive for rational mechanics and analysis (01-05-2020)“…We study the asymptotic behavior of the minimisers of the Landau-de Gennes model for nematic liquid crystals in a two-dimensional domain in the regime of small…”
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9
Chiral magnetism: a geometric perspective
Published in SciPost physics (29-03-2021)“…We discuss a geometric perspective on chiral ferromagnetism. Much like gravity becomes the effect of spacetime curvature in theory of relativity, the…”
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On symmetry of energy minimizing harmonic-type maps on cylindrical surfaces
Published in Mathematics in engineering (01-01-2023)“…The paper concerns the analysis of global minimizers of a Dirichlet-type energy functional in the class of $ \mathbb{S}^2 $-valued maps defined in cylindrical…”
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Edge Domain Walls in Ultrathin Exchange-Biased Films
Published in Journal of nonlinear science (01-06-2020)“…We present an analysis of edge domain walls in exchange-biased ferromagnetic films appearing as a result of a competition between the stray field at the film…”
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12
Reduced models for ferromagnetic nanowires
Published in IMA journal of applied mathematics (01-04-2012)“…In this paper, we consider the micromagnetic variational problem for soft ferromagnetic nanowires. We show that, as the diameter of the wire is small, the…”
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13
Domain wall motion in thin ferromagnetic nanotubes: Analytic results
Published in Europhysics letters (01-03-2014)“…Dynamics of magnetization domain walls (DWs) in thin ferromagnetic nanotubes subject to weak longitudinal external fields is addressed analytically in the…”
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14
Domain-wall motion in ferromagnetic nanowires driven by arbitrary time-dependent fields: an exact result
Published in Physical review letters (09-04-2010)“…We address the dynamics of magnetic domain walls in ferromagnetic nanowires under the influence of external time-dependent magnetic fields. We report a new…”
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Another thin-film limit of micromagnetics
Published in Archive for rational mechanics and analysis (01-11-2005)“…We consider the variational problem of micromagnetics for soft, relatively small thin films with no applied magnetic field. In terms of the film thickness t,…”
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16
Curved thin-film limits of chiral Dirichlet energies
Published in Nonlinear analysis (01-09-2023)“…We investigate the curved thin-film limit of a family of perturbed Dirichlet energies in the space of H1 Sobolev maps defined in a tubular neighborhood of an…”
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17
An estimate of the blow-up of Lebesgue norms in the non-tempered case
Published in Journal of mathematical analysis and applications (15-01-2021)“…We prove that if p>1 and ψ:]0,p−1]→]0,∞[ is just nondecreasing and differentiable (hence not necessarily Δ2), then for every f Lebesgue measurable function on…”
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18
Geometrically constrained walls
Published in Calculus of variations and partial differential equations (01-01-2007)“…We address the effect of extreme geometry on a non-convex variational problem. The analysis is motivated by recent investigations of magnetic domain walls…”
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Sufficient conditions for the existence of minimizing harmonic maps with axial symmetry in the small-average regime
Published in Nonlinear analysis: real world applications (01-08-2024)“…The paper concerns the analysis of global minimizers of a Dirichlet-type energy functional defined on the space of vector fields H1(S,T), where S and T are…”
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Stability of the Melting Hedgehog in the Landau–de Gennes Theory of Nematic Liquid Crystals
Published in Archive for rational mechanics and analysis (01-02-2015)“…We investigate stability properties of the radially symmetric solution corresponding to the vortex defect (the so called “melting hedgehog”) in the framework…”
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