[HTML][HTML] Beyond skyrmions: Review and perspectives of alternative magnetic quasiparticles

B Göbel, I Mertig, OA Tretiakov - Physics Reports, 2021 - Elsevier
Magnetic skyrmions have attracted enormous research interest since their discovery a
decade ago. The non-trivial real-space topology of these nano-whirls leads to fundamentally …

Topological spin crystals by itinerant frustration

S Hayami, Y Motome - Journal of Physics: Condensed Matter, 2021 - iopscience.iop.org
Spin textures with nontrivial topology, such as vortices and skyrmions, have attracted
attention as a source of unconventional magnetic, transport, and optical phenomena …

Square and rhombic lattices of magnetic skyrmions in a centrosymmetric binary compound

R Takagi, N Matsuyama, V Ukleev, L Yu… - Nature …, 2022 - nature.com
Magnetic skyrmions are topologically stable swirling spin textures with particle-like
character, and have been intensively studied as a candidate of high-density information bit …

The 2020 skyrmionics roadmap

C Back, V Cros, H Ebert… - Journal of Physics D …, 2020 - iopscience.iop.org
The notion of non-trivial topological winding in condensed matter systems represents a
major area of present-day theoretical and experimental research. Magnetic materials offer a …

Skyrmion lattice with a giant topological Hall effect in a frustrated triangular-lattice magnet

T Kurumaji, T Nakajima, M Hirschberger, A Kikkawa… - Science, 2019 - science.org
Geometrically frustrated magnets can host complex spin textures, leading to unconventional
electromagnetic responses. Magnetic frustration may also promote topologically nontrivial …

Nanometric square skyrmion lattice in a centrosymmetric tetragonal magnet

ND Khanh, T Nakajima, X Yu, S Gao, K Shibata… - Nature …, 2020 - nature.com
Magnetic skyrmions are topologically stable spin swirls with a particle-like character and are
potentially suitable for the design of high-density information bits. Although most known …

Skyrmion phase and competing magnetic orders on a breathing kagomé lattice

M Hirschberger, T Nakajima, S Gao, L Peng… - Nature …, 2019 - nature.com
Magnetic skyrmion textures are realized mainly in non-centrosymmetric, eg chiral or polar,
magnets. Extending the field to centrosymmetric bulk materials is a rewarding challenge …

Square skyrmion crystal in centrosymmetric itinerant magnets

S Hayami, Y Motome - Physical Review B, 2021 - APS
We theoretically investigate the origin of the square-type skyrmion crystal in centrosymmetric
itinerant magnets, motivated by the recent experimental findings in GdRu 2 Si 2 [ND Khanh …

Topological exceptional surfaces in non-Hermitian systems with parity-time and parity-particle-hole symmetries

R Okugawa, T Yokoyama - Physical Review B, 2019 - APS
We study a topological band degeneracy in non-Hermitian systems with parity-time (PT) and
parity-particle-hole (CP) symmetries. In d-dimensional non-Hermitian systems, it is shown …

Spontaneous skyrmionic lattice from anisotropic symmetric exchange in a Ni-halide monolayer

D Amoroso, P Barone, S Picozzi - Nature communications, 2020 - nature.com
Topological spin structures, such as magnetic skyrmions, hold great promises for data
storage applications, thanks to their inherent stability. In most cases, skyrmions are …