Tootfinder

Optically Controlled Skyrmion Number Current
Emir Syahreza Fadhilla, M Shoufie Ukhtary, Ardian Nata Atmaja, Bobby Eka Gunara
https://arxiv.org/abs/2508.11209 https://

Optically Controlled Skyrmion Number Current
We propose a mechanism to control the motion of magnetic Skyrmions through the generation of a Skyrmion number current. This current is induced and tuned by an explicitly time-dependent Hamiltonian that includes a Zeeman term arising from the interaction between the spin system and circularly polarized light. To capture the effect, we apply a first-order perturbation method to the Landau-Lifshitz-Gilbert equation, using a breathing Skyrmion ansatz based on the Belavin-Polyakov profile. This app…