Light-Induced Torque in Ferromagnetic Metals via Orbital Angular Momentum Generated by Photon Helicity

K Nukui, S Iihama, K Ishibashi, S Yamashita… - Physical Review Letters, 2025 - APS
We investigated photon-helicity–induced magnetization precession in Co 1-x Pt x alloy thin
films. In addition to field-like torque, attributable to magnetic field generation owing to the …

Giant magneto-optical Kerr effects governed by the quasi-bound states in the continuum

X Zhang, Y Jiang, Q Li, Y Xu, Q Zhan, W Zhao - Optics Express, 2024 - opg.optica.org
The magneto-optical Kerr effect (MOKE), as one of the magneto-optical effects, exhibits
polarization change upon reflection that can be used to explore the internal information of …