Hopfions are an intriguing class of string-like solitons, named according to a classical
topological concept classifying three-dimensional direction fields. The search for hopfions in …

We theoretically investigate the interaction between magnons and a skyrmion-textured
domain wall in a two-dimensional antiferromagnet and elucidate the resultant properties of …

The crystalline structure of nuclear matter is investigated in the standard Skyrme model with
massive pions. A semi-analytic method is developed to determine local minima of the static …

This paper describes a model for baby Skyrme crystal chunks with arbitrary potential by
considering energy contributions from the bulk and surface of a crystal chunk. We focus on …

Topological excitations are subjects of intensive studies in physics and mathematics. In solid-
state and soft matter physics, topological excitations can largely determine the …

We investigate the magnetic response of nematic superconductors, presenting a new
approach to find vortex and skyrmion structures beyond symmetry-constraining Ansätze …

The standard Ginzburg-Landau model of competing-order superconductors, applicable to
various high T c cuprates, is studied. It is observed that this model possesses two distinct …

We theoretically investigate the ground states of a chiral magnet with a square anisotropy
and show that it supports domain wall networks as stable ground states. A domain wall …

Here, by combining a symmetry-based analysis with numerical computations, we predict a
different kind of magnetic ordering—antichiral ferromagnetism. This term aims to reflect that …

We give a succinct summary of the recently discovered solvable models of magnetic
skyrmions in two dimensions, and of their general solutions. The models contain the …