Antiferro skyrmion crystal phases in a synthetic bilayer antiferromagnet under an in-plane magnetic field
arXiv:2306.06882 · doi:10.7566/JPSJ.92.084702
Abstract
We theoretically propose a generation of an antiferro skyrmion crystal (AF-SkX) in a synthetic bilayer antiferromagnetic system under an external magnetic field. By performing the simulated annealing for a spin model on a centrosymmetric bilayer triangular lattice, we find that the interplay among the layer-dependent Dzyaloshinskii-Moriya interaction, the easy-plane single-ion anisotropy, the interlayer exchange interaction, and the in-plane magnetic field leads to instability toward the AF-SkX. The obtained AF-SkX consists of the skyrmion layer and anti-skyrmion layer with opposite skyrmion numbers, which results in no skyrmion number as well as spin scalar chirality in the whole system. We also show that a ferri-type skyrmion crystal, where one of the layers has the skyrmion number of one and the other does not, appears when the magnitude of the magnetic field is varied. Our results provide a guideline to experimentally search for the AF-SkX in bulk and layered materials.
11 pages, 8 figures, accepted for publication in JPSJ
References in corpus (49)
- Spontaneous Skyrmion Ground States in Magnetic Metals
- Long wavelength helimagnetic order and skyrmion lattice phase in Cu2OSeO3
- Scalar spin chirality and quantum Hall effect on a triangular lattice
- Skyrmions and Anomalous Hall Effect in a Dzyloshinskii-Moriya Spiral Magnet
- Nanometric square skyrmion lattice in a centrosymmetric tetragonal magnet
- Formation and rotation of skyrmion crystal in the chiral-lattice insulator Cu2OSeO3
- Fractional antiferromagnetic skyrmion lattice induced by anisotropic couplings
- Néel-type skyrmion lattice in tetragonal polar magnet VOSeO
- Antiferromagnetic skyrmion crystals: generation, topological Hall and topological spin Hall effect
- Topological Magnons and Edge States in Antiferromagnetic Skyrmion Crystals
- Meron, skyrmion, and vortex crystals in centrosymmetric tetragonal magnets
- Imaging the coupling between itinerant electrons and localised moments in the centrosymmetric skyrmion magnet GdRu2Si2
- Square skyrmion crystal in centrosymmetric itinerant magnets
- Nanometric skyrmion lattice from anisotropic exchange interactions in a centrosymmetric host
- Thermodynamically stable skyrmion lattice in tetragonal frustrated antiferromagnet with dipolar interaction
- Noncoplanar multiple- spin textures by itinerant frustration: Effects of single-ion anisotropy and bond-dependent anisotropy
- Zoology of multiple-Q spin textures in a centrosymmetric tetragonal magnet with itinerant electrons
- Multiple skyrmion crystal phases by itinerant frustration in centrosymmetric tetragonal magnets
- Vortices, skyrmions, and chirality waves in frustrated Mott insulators with a quenched periodic array of impurities
- Field-Direction Sensitive Skyrmion Crystals in Cubic Chiral Systems: Implication to -Electron Compound EuPtSi
- Emergent spin-valley-orbital physics by spontaneous parity breaking
- Effective spin model in momentum space: Toward a systematic understanding of multiple- instability by momentum-resolved anisotropic exchange interactions
- Skyrmion crystal and spiral phases in centrosymmetric bilayer magnets with staggered Dzyaloshinskii-Moriya interaction
- Mean-field approach for skyrmion lattice in hexagonal frustrated antiferromagnets
- Helicity locking of square skyrmion crystal in a centrosymmetric lattice system without vertical mirror symmetry
- Nonlinear nonreciprocal transport in antiferromagnets free from spin-orbit coupling
- Rectangular and square skyrmion crystals on a centrosymmetric square lattice with easy-axis anisotropy
- Spin eigen-excitations of an antiferromagnetic skyrmion
- Skyrmion crystal in the RKKY system on the two-dimensional triangular lattice
- Low-Energy Excitations of Skyrmion Crystals in a Centrosymmetric Kondo-Lattice Magnet: Decoupled Spin-Charge Excitations and Nonreciprocity
- Multifarious skyrmion phases on a trilayer triangular lattice
- Dynamics of antiferromagnetic skyrmion in absence and presence of pinning defect
- The dynamics of local magnetic moments induced by itinerant Weyl electrons
- Anisotropy driven response of skyrmion lattice in MnScS to applied magnetic fields
- Widely-sweeping magnetic field-temperature phase diagrams for skyrmion-hosting centrosymmetric tetragonal magnets
- Magnetic field-temperature phase diagrams for multiple- magnetic orderings: Exact steepest descent approach to long-range interacting spin systems
- Skyrmion crystals in centrosymmetric triangular magnets under hexagonal and trigonal single-ion anisotropy
- Dynamical Switching of Magnetic Topology in Microwave-Driven Itinerant Magnet
- Rashba-Zener mechanism for nanoscale skyrmions and topological metals
- Temperature-driven transition from skyrmion to bubble crystals in centrosymmetric itinerant magnets
- Topological phase transition driven by magnetic field and topological Hall effect in an antiferromagnetic skyrmion lattice
- Nonreciprocal Transport in Noncoplanar Magnetic Systems without Spin-Orbit Coupling, Net Scalar Chirality, or Magnetization
- Antiferromagnetic Skyrmions and Skyrmion Density Wave in Rashba Hund's Insulator
- Square skyrmion crystal in centrosymmetric systems with locally inversion-asymmetric layers
- Skyrmion and vortex crystals in the Hubbard model
- Ferrochiral, antiferrochiral, and ferrichiral skyrmion crystals in an itinerant honeycomb magnet
- Skyrmion crystal under point group: Role of out-of-plane Dzyaloshinskii-Moriya interaction
- Skyrmion crystal with integer and fractional skyrmion numbers in a nonsymmorphic lattice structure with the screw axis
- Engineering a skyrmion crystal in ferromagnetic/antiferromagnetic bilayers free from the DM interaction
Cited by in corpus (4)
- Stabilization mechanisms of magnetic skyrmion crystal and multiple- states based on momentum-resolved spin interactions
- Thermal Hall effect and gauge-field picture of magnons in antiferromagnetic skyrmion crystals
- Three-sublattice antiferro-type and ferri-type skyrmion crystals in centrosymmetric magnets
- Charge ordering and spontaneous topological Hall effect in bilayer skyrmion crystals