Magnetic Skyrmion Interacting with Optical Skyrmion
Abstract
Magnetic skyrmions (MSks) and optical skyrmions (OSks) embody topology in matter and in light, respectively. Here we investigate the interaction between a single MSk and an OSk beam. Three distinct nonlinear dynamical modes are identified: rotation, skipping, and trochoidal motion. By decomposing the optical driving force into gradient, orbital-angular-momentum, and spin-angular-momentum contributions, we clarify their respective roles of radial confinement, azimuthal drift, and precessional modulation. The skipping motion arises from the azimuthal asymmetry of the OSk beam and exhibits spatial selectivity originating from the magnetization-polarization coupling between the MSk and OSk. In three dimensions, the coupling acquires a propagation-dependent phase dominated by the differential Gouy phase, which yields z-asymmetric skipping trajectories. These results bridge topological particles and topological fields within a unified framework, offering helicity-selective and phase-programmable routes to optomagnonic control.
Versions
Related
- Suppression of the skyrmion Hall effect in planar nanomagnets by the magnetic properties engineering: Skyrmion transport on nanotracks with magnetic strips
- Dynamically Reentrant Skyrmion Phase in Oscillating Magnetic Fields
- Redefining topological robustness in optical polarization fields through a generalized skyrmion number
- Complex Magnetic Phases and Unconventional Skyrmion Thermodynamics in Magnetically Intercalated Cr1+xTe2Compounds
- Robustness of Skyrmion-Mediated Magnetization Switching in Perpendicular Magnetic Tunnel Junctions (p-MTJs) to Material Disorder and Elevated Temperature
BibTeX
@misc{bo2026magnetic,
title = {{Magnetic Skyrmion Interacting with Optical Skyrmion}},
author = {Lan Bo and Jian Chen and Xichao Zhang and Yan Zhou and Chengwei Qiu and Masahito Mochizuki},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2608.02552},
eprint = {2608.02552},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2608.02552},
}
RIS
TY - UNPB
TI - Magnetic Skyrmion Interacting with Optical Skyrmion
AU - Lan Bo
AU - Jian Chen
AU - Xichao Zhang
AU - Yan Zhou
AU - Chengwei Qiu
AU - Masahito Mochizuki
PY - 2026
DA - 2026/09/16
PB - arXiv
DO - 10.48550/arxiv.2608.02552
UR - https://arxiv.org/abs/2608.02552
AB - Magnetic skyrmions (MSks) and optical skyrmions (OSks) embody topology in matter and in light, respectively. Here we investigate the interaction between a single MSk and an OSk beam. Three distinct nonlinear dynamical modes are identified: rotation, skipping, and trochoidal motion. By decomposing the optical driving force into gradient, orbital-angular-momentum, and spin-angular-momentum contributions, we clarify their respective roles of radial confinement, azimuthal drift, and precessional modulation. The skipping motion arises from the azimuthal asymmetry of the OSk beam and exhibits spatial selectivity originating from the magnetization-polarization coupling between the MSk and OSk. In three dimensions, the coupling acquires a propagation-dependent phase dominated by the differential Gouy phase, which yields z-asymmetric skipping trajectories. These results bridge topological particles and topological fields within a unified framework, offering helicity-selective and phase-programmable routes to optomagnonic control.
ER -