Spin waves are excitations in ferromagnetic media that have been proposed as information carriers in hybrid spintronic devices with much lower operation power than conventional charge-based electronics. Their wave nature can be exploited in majority gates by using interference for computation. However, a scalable spin-wave majority gate that can be co-integrated alongside conventional electronics is still lacking. Here, we demonstrate a sub-micron inline spin-wave majority gate with fan-out. Time-resolved imaging of the magnetization dynamics by scanning transmission x-ray microscopy illustrates the device operation. All-electrical spin-wave spectroscopy further demonstrates majority gates with sub-micron dimensions, reconfigurable input and output ports, and frequency-division multiplexing. Challenges for hybrid spintronic computing systems based on spin-wave majority gates are discussed.
@article{arxiv.1908.02546,
title = {Reconfigurable sub-micron spin-wave majority gate with electrical transducers},
author = {Giacomo Talmelli and Thibaut Devolder and Nick Träger and Johannes Förster and Sebastian Wintz and Markus Weigand and Hermann Stoll and Marc Heyns and Gisela Schütz and Iuliana Radu and Joachim Gräfe and Florin Ciubotaru and Christoph Adelmann},
journal= {arXiv preprint arXiv:1908.02546},
year = {2021}
}
Comments
This project has received funding from the European Union's Horizon 2020 research and innovation program under grant agreement No. 801055 "Spin Wave Computing for Ultimately-Scaled Hybrid Low-Power Electronics" - CHIRON