Bimerons create bimerons: proliferation and aggregation induced by currents and magnetic fields
arXiv:2407.07303 · doi:10.1002/agt2.590
Abstract
The aggregation of topological spin textures at nano and micro scales has practical applications in spintronic technologies. Here, the authors report the in-plane current-induced proliferation and aggregation of bimerons in a bulk chiral magnet. It is found that the spin-transfer torques can induce the proliferation and aggregation of bimerons only in the presence of an appropriate out-of-plane magnetic field. It is also found that a relatively small damping and a relatively large non-adiabatic spin-transfer torque could lead to more pronounced bimeron proliferation and aggregation. Particularly, the current density should be larger than a certain threshold in order to trigger the proliferation; namely, the bimerons may only be driven into translational motion under weak current injection. Besides, the authors find that the aggregate bimerons could relax into a deformed honeycomb bimeron lattice with a few lattice structure defects after the current injection. The results are promising for the development of bio-inspired spintronic devices that use a large number of aggregate bimerons. The findings also provide a platform for studying aggregation-induced effects in spintronic systems, such as the aggregation-induced lattice phase transitions.
13 pages, 8 figures
References in corpus (45)
- Advances in the Physics of Magnetic Skyrmions and Perspective for Technology
- Spontaneous Skyrmion Ground States in Magnetic Metals
- Skyrmion Hall Effect Revealed by Direct Time-Resolved X-Ray Microscopy
- Beyond skyrmions: Review and perspectives of alternative magnetic quasiparticles
- Skyrmions in Magnetic Multilayers
- Progress and prospects in magnetic topological materials
- Optical skyrmions and other topological quasiparticles of light
- The 2020 Skyrmionics Roadmap
- Topological active matter
- Magnetic skyrmion-based synaptic devices
- Skyrmion fractionalization and merons in chiral magnets with easy-plane anisotropy
- Physical foundations and basic properties of magnetic skyrmions
- Statics and Dynamics of Skyrmions Interacting with Pinning: A Review
- Antiferromagnetic Half-skyrmions and Bimerons at room temperature
- Skyrmion Qubits: A New Class of Quantum Logic Elements Based on Nanoscale Magnetization
- Topological Materials Discovery from Crystal Symmetry
- Compact Skyrmions, Merons and Bimerons in Thin Chiral Magnetic Films
- Magnetic Skyrmions for Unconventional Computing
- Meron-Like Topological Spin Defects in Monolayer CrCl3
- Computing and Memory Technologies based on Magnetic Skyrmions
- Quantized Transport for a Skyrmion Moving on a Two-Dimensional Periodic Substrate
- Universal quantum computation based on nanoscale skyrmion helicity qubits in frustrated magnets
- Static and dynamic properties of bimerons in a frustrated ferromagnetic monolayer
- Observation of domain wall bimerons in chiral magnets
- Bimeron Clusters in Chiral Antiferromagnets
- Reversible Transformation between Isolated Skyrmions and Bimerons
- Skyrmion Qubits: Challenges For Future Quantum Computing Applications
- Reservoir Computing with Spin Waves in Skyrmion Crystal
- Dynamics of ferromagnetic bimerons driven by spin currents and magnetic fields
- The dynamics of bimeron skyrmions in easy-plane magnets induced by a spin supercurrent
- Qubits based on merons in magnetic nanodisks
- Stability and dynamics of in-plane skyrmions in collinear ferromagnets
- Homochiral antiferromagnetic merons, antimerons and bimerons realized in synthetic antiferromagnets
- Typical skyrmions versus bimerons: a long-distance competition in ferromagnetic racetracks
- Skyrmion Ratchet in Funnel Geometries
- Handwritten Digit Recognition by Spin Waves in a Skyrmion Reservoir
- Laminar and transiently disordered dynamics of a magnetic skyrmion pipe flow
- A Frustrated Bimeronium: Static Structure and Dynamics
- Clogging, Diode and Collective Effects of Skyrmions in Funnel Geometries
- Chiral Skyrmions Interacting with Chiral Flowers
- Dynamic transformation between a skyrmion string and a bimeron string in a layered frustrated system
- Shear Banding, Intermittency, Jamming and Dynamic Phases for Skyrmions in Inhomogeneous Pinning Arrays
- Particle-like skyrmions interacting with a funnel obstacle
- Nonreciprocal dynamics of ferrimagnetic bimerons
- Structural transition of skyrmion quasiparticles under compression