Efficient All-Optical Helicity Dependent Switching of Spins in a Pt/Co/Pt Film by a Dual-Pulse Excitation
نویسندگان
چکیده
All-optical helicity dependent switching (AO-HDS), deterministic control of magnetization by circularly polarized laser pulses, allows to efficiently manipulate spins without the need a magnetic field. However, AO-HDS in ferromagnetic metals so far requires many pulses for fully their states. Using combination short, 90-fs linearly pulse and subsequent longer, 3-ps pulse, we demonstrate that number full reversal can be reduced 4 pairs single stack Pt/Co/Pt. The obtained results suggest dual-pulse approach is potential route towards realizing efficient metals.
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ژورنال
عنوان ژورنال: Frontiers in nanotechnology
سال: 2022
ISSN: ['2673-3013']
DOI: https://doi.org/10.3389/fnano.2022.765848