Geometry and symmetry in skyrmion dynamics
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 …
an intricate dependence on the skyrmions' topological charge and shape. We reveal …
Curved thin-film limits of chiral Dirichlet energies
G Di Fratta, V Slastikov - Nonlinear Analysis, 2023 - Elsevier
We investigate the curved thin-film limit of a family of perturbed Dirichlet energies in the
space of H 1 Sobolev maps defined in a tubular neighborhood of an (n− 1)-dimensional …
space of H 1 Sobolev maps defined in a tubular neighborhood of an (n− 1)-dimensional …
Tailed skyrmions—An obscure branch of magnetic solitons
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 …
model. Tailed skyrmions have elongated shapes and emerge in a narrow range of fields …
[PDF][PDF] Reduced energies for thin ferromagnetic films with perpendicular anisotropy
We derive four reduced two-dimensional models that describe, at different spatial scales, the
micromagnetics of ultrathin ferromagnetic materials of finite spatial extent featuring …
micromagnetics of ultrathin ferromagnetic materials of finite spatial extent featuring …
Linearized von Kármán theory for incompressible magnetoelastic plates
M Bresciani - Mathematical Models and Methods in Applied …, 2021 - World Scientific
We study the asymptotic behavior, in the sense of Γ-convergence, of a thin incompressible
magnetoelastic plate, as its thickness goes to zero. We focus on the linearized von Kármán …
magnetoelastic plate, as its thickness goes to zero. We focus on the linearized von Kármán …
On symmetry of energy minimizing harmonic-type maps on cylindrical surfaces
G Di Fratta, A Fiorenza, V Slastikov - arXiv preprint arXiv:2110.08755, 2021 - arxiv.org
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 surfaces. The model …
the class of $\mathbb {S}^ 2$-valued maps defined in cylindrical surfaces. The model …
[HTML][HTML] Renormalised energy between boundary vortices in thin-film micromagnetics with Dzyaloshinskii-Moriya interaction
R Ignat, F L'official - Nonlinear Analysis, 2025 - Elsevier
We consider a three-dimensional micromagnetic model with Dzyaloshinskii-Moriya
interaction in a thin-film regime for boundary vortices. In this regime, we prove a dimension …
interaction in a thin-film regime for boundary vortices. In this regime, we prove a dimension …
Stochastic homogenization of micromagnetic energies and emergence of magnetic skyrmions
E Davoli, L D'Elia, J Ingmanns - Journal of Nonlinear Science, 2024 - Springer
We perform a stochastic homogenization analysis for composite materials exhibiting a
random microstructure. Under the assumptions of stationarity and ergodicity, we …
random microstructure. Under the assumptions of stationarity and ergodicity, we …
The mathematics of thin structures
This article offers various mathematical contributions to the behavior of thin films. The
common thread is to view thin film behavior as the variational limit of a three-dimensional …
common thread is to view thin film behavior as the variational limit of a three-dimensional …
The micromagnetic energy with Dzyaloshinskii-Moriya interaction in a thin-film regime relevant for boundary vortices
F L'official - arXiv preprint arXiv:2203.15844, 2022 - arxiv.org
We consider the three-dimensional micromagnetic model with Dzyaloshinskii-Moriya
interaction in a thin-film regime. We prove the Gamma-convergence of the micromagnetic …
interaction in a thin-film regime. We prove the Gamma-convergence of the micromagnetic …