# Steering of the Skyrmion Hall Angle By Gate Voltage

## TL;DR

This paper demonstrates how gate voltage-controlled spin-orbit interactions can steer magnetic skyrmions by suppressing the skyrmion Hall effect, enabling precise, high-speed, all-electronic control of skyrmion motion for advanced racetrack applications.

## Contribution

It introduces a method to control the skyrmion Hall angle using gate voltage-induced spin-orbit torques, allowing all-electronic steering of skyrmions.

## Key findings

- Complete suppression of the skyrmion Hall effect achieved.
- Gate voltage effectively controls spin-orbit torques.
- High-speed, all-electronic skyrmion steering demonstrated.

## Abstract

Magnetic skyrmions can be driven by an applied spin-polarized electron current which exerts a spin-transfer torque on the localized spins constituting the skyrmion. However, the longitudinal dynamics is plagued by the skyrmion Hall effect which causes the skyrmions to acquire a transverse velocity component. We show how to use spin-orbit interaction to control the skyrmion Hall angle and how the interplay of spin-transfer and spin-orbit torques can lead to a complete suppression of the transverse motion. Since the spin-orbit torques can be controlled all-electronically by a gate voltage, the skyrmion motion can be steered all-electronically on a broad racetrack at high speed and conceptually new writing and gating operations can be realized.