Skyrmion dynamics in chiral ferromagnets

S Komineas, N Papanicolaou - Physical Review B, 2015 - APS
We study the dynamics of skyrmions in Dzyaloshinskii-Moriya materials with easy-axis
anisotropy. An important link between topology and dynamics is established through the …

[HTML][HTML] Curvature-driven homogeneous Dzyaloshinskii–Moriya interaction and emergent weak ferromagnetism in anisotropic antiferromagnetic spin chains

OV Pylypovskyi, YA Borysenko, J Fassbender… - Applied Physics …, 2021 - pubs.aip.org
Chiral antiferromagnets are currently considered for a broad range of applications in
spintronics, spin-orbitronics, and magnonics. In contrast to the established approach relying …

Semitopological solitons in planar ferromagnets

N Papanicolaou, PN Spathis - Nonlinearity, 1999 - iopscience.iop.org
We establish the existence of a finite-energy solitary wave in a two-dimensional planar
ferromagnet which moves rigidly at any constant velocity v that is smaller than the magnon …

Traveling skyrmions in chiral antiferromagnets

S Komineas, N Papanicolaou - SciPost Physics, 2020 - scipost.org
Skyrmions in antiferromagnetic (AFM) materials with the Dzyaloshinskii-Moriya (DM)
interaction are expected to exist for essentially the same reasons as in DM ferromagnets …

Rotating vortex dipoles in ferromagnets

S Komineas - Physical review letters, 2007 - APS
Vortex-antivortex pairs are spontaneously created in magnetic elements. In the case of
opposite vortex polarities the pair has a nonzero topological charge, and it behaves as a …

Traveling wave solutions of the Schrödinger map equation

F Lin, J Wei - Communications on pure and applied mathematics, 2010 - infona.pl
We first construct traveling wave solutions for the Schrödinger map in ℝ 2 of the form m (x 1,
x 2− ϵ t), where m has exactly two vortices at approximately $\font\open= msbm10 at …

Breathing skyrmions in chiral antiferromagnets

S Komineas, PE Roy - Physical Review Research, 2022 - APS
Breathing oscillations of skyrmions in chiral antiferromagnets can be excited by a brief
modification of the Dzyaloshinskii-Moriya interaction or magnetocrystalline anisotropy …

Static theory for planar ferromagnets and antiferromagnets

FB Hang*, FH Lin** - Acta Mathematica Sinica, 2001 - Springer
Here we generalize the" BBH"-asymptotic analysis to a simplified mathematical model for
the planar ferromagnets and antiferromagnets. To develop such a static theory is a …

Statics and dynamics of magnetic vortices and of Nielsen–Olesen (Nambu) strings

S Gustafson, IM Sigal, T Tzaneteas - Journal of mathematical physics, 2010 - pubs.aip.org
Statics and dynamics of magnetic vortices and of Nielsen–Olesen (Nambu) strings | Journal of
Mathematical Physics | AIP Publishing Skip to Main Content Umbrella Alt Text Umbrella Alt …

Intermediate phase in the spiral antiferromagnet

J Chovan, N Papanicolaou, S Komineas - Physical Review B, 2002 - APS
Abstract The magnetic compound Ba 2 CuGe 2 O 7 has recently been shown to be an
essentially two-dimensional spiral antiferromagnet that exhibits an incommensurate-to …