Experimental prototype of a spin-wave majority gate

TL;DR

This paper reports the experimental development of a spin-wave majority gate using Yttrium-Iron-Garnet, demonstrating phase-based logic with fast switching times suitable for future low-power information processing.

Contribution

It presents the first experimental prototype of a spin-wave majority gate utilizing interference in a Yttrium-Iron-Garnet waveguide structure, with phase-encoded logic and sub-nanosecond switching.

Findings

Successful demonstration of a phase-based spin-wave majority gate

Switching time of approximately 10 nanoseconds

Potential for sub-nanosecond data processing in scaled devices

Abstract

Featuring low heat dissipation, devices based on spin-wave logic gates promise to comply with increasing future requirements in information processing. In this work, we present the experimental realization of a majority gate based on the interference of spin waves in an Yttrium-Iron-Garnet-based waveguiding structure. This logic device features a three-input combiner with the logic information encoded in the phase of the spin waves. We show that the phase of the output signal represents the majority of the phase of the input signals. A switching time of about 10 ns in the prototype device provides evidence for the ability of sub-nanosecond data processing in future down-scaled devices.