Fractional antiferromagnetic skyrmion lattice induced by anisotropic couplings

Abstract

Magnetic skyrmions are topological solitons with a nanoscale winding spin texture that hold promise for spintronics applications. Until now, skyrmions have been observed in a variety of magnets that exhibit nearly parallel alignment for the neighbouring spins, but theoretically, skyrmions with anti-parallel neighbouring spins are also possible. The latter, antiferromagnetic skyrmions, may allow more flexible control compared to the conventional ferromagnetic skyrmions. Here, by combining neutron scattering and Monte Carlo simulations, we show that a fractional antiferromagnetic skyrmion lattice with an incipient meron character is stabilized in MnSc${}_2$S${}_4$ through anisotropic couplings. Our work demonstrates that the theoretically proposed antiferromagnetic skyrmions can be stabilized in real materials and represents an important step towards implementing the antiferromagnetic-skyrmion based spintronic devices.

14 pages, 11 figures, submitted version with necessary edits

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Cited by in corpus (100)

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• Noncoplanar multiple-$Q$ 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
• Effective spin model in momentum space: Toward a systematic understanding of multiple-$Q$ instability by momentum-resolved anisotropic exchange interactions
• Magnetic Interactions of the Centrosymmetric Skyrmion Material Gd2PdSi3
• Thermal Hall effects in quantum magnets
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• Generic Spiral Spin Liquids
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• Low-Energy Excitations of Skyrmion Crystals in a Centrosymmetric Kondo-Lattice Magnet: Decoupled Spin-Charge Excitations and Nonreciprocity
• Magnon driven skyrmion dynamics in antiferromagnets: The effect of magnon polarization
• Anisotropy driven response of skyrmion lattice in MnSc${}_2$S${}_4$ to applied magnetic fields
• Emergent SU(3) magnons and thermal Hall effect in the antiferromagnetic skyrmion lattice
• Emergence of zero-field non-synthetic single and interchanged antiferromagnetic skyrmions in thin films
• Spirals and skyrmions in antiferromagnetic triangular lattices
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• Topological phase transition driven by magnetic field and topological Hall effect in an antiferromagnetic skyrmion lattice
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• Triple-meron crystal in high-spin Kitaev magnets
• Machine learning techniques to construct detailed phase diagrams for skyrmion systems
• Temperature-driven transition from skyrmion to bubble crystals in centrosymmetric itinerant magnets
• A Frustrated Bimeronium: Static Structure and Dynamics
• Stability of skyrmion crystal phase in antiferromagnetic triangular lattice with DMI and single-ion anisotropy
• Designer Meron Lattice on the Surface of a Topological Insulator
• Square skyrmion crystal in centrosymmetric systems with locally inversion-asymmetric layers
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• Recent progress in antiferromagnetic dynamics
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• Fermi Surface Nesting Driving the RKKY Interaction in the Centrosymmetric Skyrmion Magnet Gd2PdSi3
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• Spin-Current Instability at a Magnetic Domain Wall in a Ferromagnetic Superfluid: a Generation Mechanism of Eccentric Fractional Skyrmions
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• Stability of Skyrmion Crystal Phase in Centrosymmetric Distorted Triangular-Lattice Antiferromagnets
• Suppression of the skyrmion Hall effect in synthetic ferrimagnets with gradient magnetization
• Magnetic order and exchange couplings in the frustrated diamond lattice antiferromagnet MnSc${}_2$Se${}_4$
• Anisotropic spin model and multiple-$Q$ states in cubic systems
• Hierarchical excitations from correlated spin tetrahedra on the breathing pyrochlore lattice
• From chiral spin liquids to skyrmion fluids and crystals, and their interplay with itinerant electrons
• A spin model for intrinsic antiferromagnetic skyrmions on a triangular lattice
• Helical superfluid in a frustrated honeycomb Bose-Hubbard model
• Spiral spin liquid in a frustrated honeycomb antiferromagnet: A single-crystal study of GdZnPO
• Line-Graph Approach to Spiral Spin Liquids
• Magnon-driven dynamics of frustrated skyrmion in synthetic antiferromagnets: Effect of skyrmion precession
• Complex magnetic phase diagram with a small phase pocket in a three-dimensional frustrated magnet CuInCr${}_4$S${}_8$
• Antiferro skyrmion crystal phases in a synthetic bilayer antiferromagnet under an in-plane magnetic field
• Observation of the spiral spin liquid in a triangular-lattice material
• Robustness of topological magnons in disordered arrays of skyrmions
• Revival of antibiskyrmionic magnetic phases in bilayer NiI${}_2$
• Magnetic particles and strings in iron langasite
• Monte Carlo studies of skyrmion stabilization under geometric confinement and uniaxial strain
• Emergence of Exotic Spin Texture in Supramolecular Metal Complexes on a 2D Superconductor
• Disorder effects in spiral spin liquids: Long-range spin textures, Friedel-like oscillations, and spiral spin glasses
• Frustration-driven topological textures on the honeycomb lattice: antiferromagnetic meron-antimeron and skyrmion crystals emerging from spiral spin liquids
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• Robust dynamics of antiferromagnetic skyrmion driven by spin-polarized current in small thin disks
• Giant Magnetocaloric Effect in a Honeycomb Spiral Spin-Liquid Candidate
• A proposal for skyrmion-based diode-like device in antiferromagnetic nanostripe
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• On the complexity of spinels: Magnetic, electronic, and polar ground states
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• Pulling order back from the brink of disorder: Observation of a nodal line spin liquid and fluctuation stabilized order in K${}_2$IrCl${}_6$
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• Magnon-phonon interactions in the spinel compound MnSc${}_2$Se${}_4$
• Thermal Hall effect and gauge-field picture of magnons in antiferromagnetic skyrmion crystals
• Observation of a non-reciprocal skyrmion Hall effect of hybrid chiral skyrmion tubes in synthetic antiferromagnetic multilayers
• Four-Spin Interactions as a Route to Multiple-Q Topological Magnetic Order
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• Probing Random-Bond Disorder Effects on Ferromagnetic Skyrmion Arrays
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• Quantized Topological Charges of Ferroelectric Skyrmions in Two-Dimensional Multiferroic Materials
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• Collinear Magnetic Structure in the Diamond Network Magnet EuTi${}_2$Al${}_{20}$
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• Skyrmion-deriven topological spin and charge Hall effects in diffusive antiferromagnetic thin films
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• Classification of magnon thermal Hall systems based on U(1) to non-Abelian gauge fields
• Antiferromagnetic Skyrmion Scattering Revealed by Direct Time-Resolved Imaging of Collective Dynamics
• ${\mathbb{Z}}_2$ Vortex Crystals in Tetrahedral Antiferromagnets: Fractional Charges and Topological Magnons
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• Frustrated $J_1-J_2$ Diamond Lattice Antiferromagnet Co${}_2$Ti${}_3$O${}_8$ with a Vacancy-ordered Spinel Structure Synthesized via a Topochemical Reaction
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• Field-tunable quadruple-$Q$ states driven by momentum-space frustration