Signal detection based on the chaotic motion of an antiferromagnetic domain wall
arXiv:2011.01481 · doi:10.1063/5.0034997
Abstract
The antiferromagnetic domain wall dynamics is currently a hot topic in mesoscopic magnetic systems. In this work, it is found that, based on the Thiele approach, the motion of an antiferromagnetic domain wall is described by the Duffing equation. Numerical simulations demonstrate that the antiferromagnetic domain wall can be used as a Duffing oscillator, and the transition between the periodic and chaotic motion can be used to detect the periodic signal in the presence of the white noise. Furthermore, we calculate the bifurcation diagram and Lyapunov exponents to study the chaotic behavior of an antiferromagnetic domain wall. The numerical simulations are in good agreement with the analytical solutions. Our results may be useful for building spintronic detection devices based on antiferromagnetic domain walls.
6 pages, 4 figures
References in corpus (14)
- Advances in the Physics of Magnetic Skyrmions and Perspective for Technology
- Skyrmion Hall Effect Revealed by Direct Time-Resolved X-Ray Microscopy
- Magnetic skyrmion logic gates: conversion, duplication and merging of skyrmions
- Dynamics of domain walls in magnetic nanostrips
- Phenomenology of Current-Induced Dynamics in Antiferromagnets
- Staggered Dynamics in Antiferromagnets by Collective Coordinates
- Compact Skyrmions, Merons and Bimerons in Thin Chiral Magnetic Films
- Dynamics of a vortex domain wall in a magnetic nanostrip: an application of the collective coordinate approach
- Chaotic Dynamics of Spin-Valve Oscillators
- Topological spin Hall effects and tunable skyrmion Hall effects in uniaxial antiferromagnetic insulators
- The dynamics of bimeron skyrmions in easy-plane magnets induced by a spin supercurrent
- Skyrmion relaxation dynamics in the presence of quenched disorder
- Manipulating antiferromagnets with magnetic fields: ratchet motion of multiple domain walls induced by asymmetric field pulses
- Magnetoelectric antiferromagnets as platforms for the manipulation of solitons