Skyrmion Lattice Manipulation with Electric Currents and Thermal Gradients in MnSi
arXiv:2412.07162 · doi:10.1103/PhysRevB.111.064410
Abstract
The skyrmion lattice (SkL) in MnSi was studied using small-angle neutron scattering and under the influence of a radial electric current in a Corbino geometry. In response to the applied current, the SkL undergoes an angular reorientation with respect to the MnSi crystal lattice. The reorientation is non-monotonic with increasing current, with the SkL rotating first in one direction and then the other. The SkL reorientation was studied at different sample locations and found to depend on the local current density as inferred from a finite element analysis. The non-monotonic response indicates the presence of two competing effects on the SkL, most likely due to the presence of both radial electric and thermal currents. Such a scenario is supported by micromagnetic simulations, which show how these effects can act constructively or destructively to drive the SkL rotation, depending on the direction of the electric current. In addition, the simulations also suggest how the direction of the skyrmion flow may affect the SkL orientation.
arXiv commentMinor revisions
References in corpus (26)
- Skyrmion Lattice in a Chiral Magnet
- The design and verification of Mumax3
- Advances in the Physics of Magnetic Skyrmions and Perspective for Technology
- Magnetic 2D materials and heterostructures
- Topological Hall effect in the A-phase of MnSi
- Roles of non-equilibrium conduction electrons on magnetization dynamics of ferromagnets
- Spin Transfer Torques in MnSi at Ultra-low Current Densities
- Skyrmion lattice with a giant topological Hall effect in a frustrated triangular-lattice magnet
- A new class of chiral materials hosting magnetic skyrmions beyond room temperature
- The 2020 Skyrmionics Roadmap
- Nanometric square skyrmion lattice in a centrosymmetric tetragonal magnet
- Thermally Driven Ratchet Motion of Skyrmion Microcrystal and Topological Magnon Hall Effect
- A magnetic skyrmion as a non-linear resistive element - a potential building block for reservoir computing
- Rotating skyrmion lattices by spin torques and field or temperature gradients
- Electric field-induced Skyrmion distortion and giant lattice rotation in the magnetoelectric insulator Cu2OSeO3
- Magnetic Skyrmions for Unconventional Computing
- Current induced rotational torques in the skyrmion lattice phase of chiral magnets
- Engineering skyrmions in transition-metal multilayers for spintronics
- Pattern recognition with neuromorphic computing using magnetic-field induced dynamics of skyrmions
- High-field depinned phase and planar Hall effect in skyrmion-host GdPdSi
- Dynamical defects in rotating magnetic skyrmion lattices
- Coexistence of Merons with Skyrmions in the Centrosymmetric van der Waals Ferromagnet Fe5GeTe2
- Deformation of the Magnetic Skyrmion Lattice in MnSi under Electric Current Flow
- Imaging the ultrafast coherent control of a skyrmion crystal
- Conformal Vortex Crystals
- Topological energy barrier for skyrmion lattice formation in MnSi