Skyrmion Generation through the Chirality Interplay of Light and Magnetism
arXiv:2502.16197 · doi:10.1038/s42005-026-02488-9
Abstract
Light beams, with their rich degrees of freedom, including polarization and phase, along with their flexible tunability, have emerged as an ideal tool for generating magnetic topological textures.However, how to precisely control the light beams to generate a specific number of magnetic topological textures on demand remains a critical scientific issue that needs to be resolved. Based on the numerical simulation of the Landau-Lifshitz-Gilbert equation, we propose that circularly polarized Laguerre-Gaussian beams can induce chiral magnetic fields through the interaction of the chirality of these beams'angular momenta. By utilizing these chiral magnetic fields, skyrmions or skyrmionium can be induced in chiral magnets. Moreover, the vectorial magnetic fields can be manipulated by adjusting the angular momenta and light intensity, thereby generating target chiral patterns and strengths, which allows for precise control over the type and number of these topological magnetic textures. This finding not only reveals the underlying physical mechanisms of the interaction between light and magnetic systems but also provides a feasible solution for the on-demand generation and encoding of skyrmions.
References in corpus (14)
- Spontaneous Skyrmion Ground States in Magnetic Metals
- A mechanism to pin skyrmions in chiral magnets
- Deterministic Generation and Guided Motion of Magnetic Skyrmions by Focused He-Ion Irradiation
- Inertial effects in ultrafast spin dynamics
- Design of an optomagnonic crystal: towards optimal magnon-photon mode matching at the microscale
- Optical-controlled ultrafast dynamics of skyrmion in antiferromagnets
- Laser control of magnonic topological phases in antiferromagnets
- Observation of a new light-induced skyrmion phase in the Mott insulator Cu2OSeO3
- Tailoring Optical Excitation to Control Magnetic Skyrmion Nucleation
- Transformations from stripy states to skyrmion crystals
- Particle-continuum-medium duality of skyrmions
- Ultrafast optical generation of antiferromagnetic meron-antimeron pairs with conservation of topological charge
- All-optical non-linear chiral ultrafast magnetization dynamics driven by circularly polarized magnetic fields
- Helicity-dependent optical control of the magnetization state emerging from the Landau-Lifshitz-Gilbert equation