Antitopological magnetic textures in an antiferromagnetically coupled bilayer with frustration
arXiv:2604.08845 · doi:10.1103/c93q-gcf3
Abstract
The bilayer skyrmion composed of upper and lower tightly coupled skyrmions on two layers with completely compensated topological charges (called as anti-topology here), has become one feasible improvement of conventional skyrmion to realize straight motion without skyrmion Hall effect, which has aroused great interest in practical applications. The present work investigates a general model (without external magnetic field) for the frustration-induced anti-topological bilayer magnetic textures with rich morphologies, and discusses the modulations of key parameters on the energy barrier and the current-driven dynamics. It is revealed that the interlayer coupling plays a key role in preventing distortion, and thus helps to reach a faster velocity. This model can be realized in various frustrated magnetic materials with antiferromagnetically coupled bilayer, providing a helpful guidance for the material design and application of topological magnetic textures.
References in corpus (28)
- Skyrmion Lattice in a Chiral Magnet
- Advances in the Physics of Magnetic Skyrmions and Perspective for Technology
- 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
- Multiple-q states and skyrmion lattice of the triangular-lattice Heisenberg antiferromagnet under magnetic fields
- Multiply periodic states and isolated skyrmions in an anisotropic frustrated magnet
- Magnetic bilayer-skyrmions without skyrmion Hall effect
- Antiferromagnetic Skyrmion: Stability, Creation and Manipulation
- Current-driven dynamics and inhibition of the skyrmion Hall effect of ferrimagnetic skyrmions in GdFeCo films
- Skyrmion-electronics: Writing, deleting, reading and processing magnetic skyrmions toward spintronic applications
- Method for finding mechanism and activation energy of magnetic transitions, applied to skyrmion and antivortex annihilation
- Skyrmion dynamics in a frustrated ferromagnetic film and current-induced helicity locking-unlocking transition
- Skyrmion Qubits: A New Class of Quantum Logic Elements Based on Nanoscale Magnetization
- Spirit: Multifunctional Framework for Atomistic Spin Simulations
- Stabilization and current-induced motion of antiskyrmion in the presence of anisotropic Dzyaloshinskii-Moriya interaction
- Fast current-induced skyrmion motion in synthetic antiferromagnets
- Dynamics of the antiferromagnetic skyrmion induced by a magnetic anisotropy gradient
- Universal quantum computation based on nanoscale skyrmion helicity qubits in frustrated magnets
- Experimental signatures of quantum and topological states in frustrated magnetism
- Skyrmion crystal and spiral phases in centrosymmetric bilayer magnets with staggered Dzyaloshinskii-Moriya interaction
- Controlling the helicity of magnetic skyrmions by electrical field in frustrated magnets
- Current-Driven Dynamics of Frustrated Skyrmions in a Synthetic Antiferromagnetic Bilayer
- Universality of annihilation barriers of large magnetic skyrmions in chiral and frustrated magnets
- Emergence of zero-field non-synthetic single and interchanged antiferromagnetic skyrmions in thin films
- Vector vorticity of skyrmionic texture: an internal degree of freedom tunable by magnetic field
- Dynamics of distorted skyrmions in strained chiral magnets