By examining the complex interactions between light and magnetism, this work uncovers the dominant role played by light's spin angular momentum in magnetic all-optical switching (AOS) using Co/Pt ferromagnetic thin films. The authors use femtosecond vortex beams to demonstrate that the topological charge and orbital angular momentum's handedness are inconsequential. As a result, this research enhances our comprehension and underscores the pivotal correlation between the angular momentum of light and magnetization dynamics.
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Khalid et al. (2024) studied this question.
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