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   Articles with "hopfion" as a keyword



Topological transitions, pinning and ratchets for driven magnetic hopfions in nanostructures

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recommendations! Published in 2025 at "Scientific Reports"

DOI: 10.1038/s41598-025-01349-9

Abstract: Using atomistic simulations, we examine the dynamics of three-dimensional magnetic hopfions interacting with an array of line defects or posts as a function of defect spacing, defect strength, and current. We find a pinned phase,… read more here.

Keywords: topological transitions; magnetic hopfions; transitions pinning; pinning ratchets ... See more keywords

Space-Time Optical Hopfion Crystals.

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recommendations! Published in 2024 at "Physical review letters"

DOI: 10.1103/hh5s-cprt

Abstract: Hopfions-higher-dimensional topological quasiparticles with sophisticated 3D knotted spin textures discovered in condensed matter and photonic systems-show promise in high-density data storage and transfer. Here, we present crystalline structures of hopfions lying in space-time constructed by… read more here.

Keywords: optical hopfion; hopfion; space time; hopfion crystals ... See more keywords

Emergent Magnetomultipoles and Nonlinear Responses of a Magnetic Hopfion.

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recommendations! Published in 2022 at "Physical review letters"

DOI: 10.1103/physrevlett.129.267201

Abstract: The three-dimensional emergent magnetic field B^{e} of a magnetic hopfion gives rise to emergent magnetomultipoles in a similar manner to the multipoles of classical electromagnetic field. Here, we show that the nonlinear responses of a… read more here.

Keywords: nonlinear responses; emergent magnetomultipoles; magnetomultipoles nonlinear; hopfion ... See more keywords

Magnon scattering modulated by omnidirectional hopfion motion in antiferromagnets for meta-learning

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recommendations! Published in 2023 at "Science Advances"

DOI: 10.1126/sciadv.ade7439

Abstract: Neuromorphic computing is expected to achieve human-brain performance by reproducing the structure of biological neural systems. However, previous neuromorphic designs based on synapse devices are all unsatisfying for their hardwired network structure and limited connection… read more here.

Keywords: meta learning; modulated omnidirectional; magnon scattering; hopfion ... See more keywords

3D Magnetization Textures: Toroidal Magnetic Hopfion Stability in Cylindrical Samples

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recommendations! Published in 2024 at "Nanomaterials"

DOI: 10.3390/nano14010125

Abstract: Topologically non-trivial magnetization configurations in ferromagnetic materials on the nanoscale, such as hopfions, skyrmions, and vortices, have attracted considerable attention of researchers during the last few years. In this article, by applying the theory of… read more here.

Keywords: toroidal magnetic; textures toroidal; magnetization; magnetization textures ... See more keywords