SKM 2023 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 29: Neuromorphic Magnetism / Magnetic Logic
MA 29.4: Vortrag
Mittwoch, 29. März 2023, 12:15–12:30, HSZ 02
Light-controlled nanomagnetic logic circuits — •Naëmi Leo1,2, Matteo Menniti2, Pieter Gypens3, Jonathan Leliaert3, and Paolo Vavassori2 — 1CSIC - INMA, Zaragoza, Spain — 2CIC nanoGUNE BRTA, Spain — 3Ghent University, Belgium
Magnetic metamaterials with magnetostatically-coupled elements offer an interesting platform to implement low-power and neuromorphic-inspired data processing, in particular when combined with thermally-driven switching processes. By combining nanomagnetic elements with light-controlled plasmonic heaters, here we demonstrate how to design nanomagnetic Boolean OR or AND gates with nanosecond operation. The reconfigurability logic is achieved either by modifying the field protocol setting the initial state or optically, by changing the polarisation and order of the laser pulses exciting the system. Thermoplasmonic-nanomagnetic metamaterials thus lend themselves for the implementation of future fast (up to GHz), energy-efficient (picojoule), and optically-reconfigurable platform for in-memory computation schemes.