# A majority gate with chiral magnetic solitons

## TL;DR

This paper proposes a three-input majority gate using chiral magnetic solitons, enabling logical operations with minimal electric currents by encoding signals in soliton chirality, demonstrated through atomistic simulations.

## Contribution

It introduces a novel magnetic logic device utilizing chiral magnetic solitons for efficient, low-current logical operations, expanding the potential of topological spin textures in computing.

## Key findings

- Demonstrated a three-input majority gate based on magnetic solitons
- Showed logical operations like AND and OR using soliton chirality
- Proposed low-current, topologically protected magnetic logic device

## Abstract

In magnetic materials nontrivial spin textures may emerge owing to the competition among different types of magnetic interactions. Among such spin textures, chiral magnetic solitons represent topologically protected spin configurations with particle-like properties. Based on atomistic spin dynamics simulations, we demonstrate that these chiral magnetic solitons are ideal to use for logical operations, and we demonstrate the functionality of a three-input majority gate, in which the input states can be controlled by applying an external electromagnetic field or spin-polarized currents. One of the main advantages of the proposed device is that the input and output signals are encoded in the chirality of solitons, that may be moved, allowing to perform logical operations using only minute electric currents. As an example we illustrate how the three input majority gate can be used to perform logical relations, such as Boolean AND and OR.