Experimental demonstration reports improved magnetization switching in ferromagnetic films using circularly polarized beams, suggesting enhanced efficiency.
We report the first demonstration of tightly focused femtosecond (fs) circularly polarized Bessel-Gauss beams for wavelength-scale magnetization switching in Pt/Co films. When compared to traditional Gaussian beams, these beams show better focusing and energy efficiency.
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Khalid et al. (2025) studied this question.
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