Magnetic Skyrmion Field-Effect Transistors
arXiv:1908.04931 · doi:10.1063/1.5110752
Abstract
Magnetic skyrmions are of considerable interest for low-power memory and logic devices because of high speed at low current and high stability due to topological protection. We propose a skyrmion field-effect transistor based on a gate-controlled Dzyaloshinskii-Moriya interaction. A key working principle of the proposed skyrmion field-effect transistor is a large transverse motion of skyrmion, caused by an effective equilibrium damping-like spin-orbit torque due to spatially inhomogeneous Dzyaloshinskii-Moriya interaction. This large transverse motion can be categorized as the skyrmion Hall effect, but has been unrecognized previously. The propose device is capable of multi-bit operation and Boolean functions, and thus is expected to serve as a low-power logic device based on the magnetic solitons.
arXiv comment16 pages, 3 figures
References in corpus (18)
- Skyrmion Lattice in a Chiral Magnet
- Direct Observation of the Skyrmion Hall Effect
- Skyrmion Hall Effect Revealed by Direct Time-Resolved X-Ray Microscopy
- Magnetic skyrmion logic gates: conversion, duplication and merging of skyrmions
- Static and Dynamical Properties of Antiferromagnetic Skyrmions in the Presence of Applied Current and Temperature
- Magnetic bilayer-skyrmions without skyrmion Hall effect
- Skyrmions in Magnetic Multilayers
- Dynamics of domain walls in magnetic nanostrips
- Large voltage tuning of Dzyaloshinskii-Moriya Interaction: a route towards dynamic control of skyrmion chirality
- Staggered Dynamics in Antiferromagnets by Collective Coordinates
- Vanishing skyrmion Hall effect at the angular momentum compensation temperature of a ferrimagnet
- Capturing of a Magnetic Skyrmion with a Hole
- Current-driven skyrmion dynamics in disordered films
- Drive Dependence of the Skyrmion Hall Effect in Disordered Systems
- Self-Focusing Skyrmion Racetracks in Ferrimagnets
- Skyrmions Driven by Intrinsic Magnons
- Magnetic skyrmion bubble motion driven by surface acoustic waves
- Spin-wave propagation in the presence of inhomogeneous Dzyaloshinskii-Moriya interactions