Anomalous quasielastic scattering contribution in the centrosymmetric multi-$\mathbf{q}$ helimagnet SrFeO${}_3$

Abstract

Centrosymmetric compounds which host three-dimensional topological spin structures comprise a distinct subclass of materials in which multiple-$\mathbf{q}$ magnetic order is stabilized by anisotropy and bond frustration in contrast to the more common path of antisymmetric exchange interactions. Here we investigate static and dynamic magnetic properties of the cubic perovskite SrFeO${}_3$ $\unicode{x2013}$ a rare example of a centrosymmetric material hosting two types of topological spin textures: skyrmion- and hedgehog-lattice phases. Our detailed magnetization and dilatometry measurements describe the domain selection processes and phase transitions in SrFeO${}_3$. Spin excitations are investigated using inelastic neutron scattering for all three zero-field phases. In the higher-temperature ordered phases, high-energy magnons increasingly lose coherence, so that spin fluctuations are dominated by a distinct quasielastic component at low energies. We anticipate that this could be generic to symmetric helimagnets in which the chiral symmetry is spontaneously broken by the magnetic order.

References in corpus (39)

• Skyrmion Lattice in a Chiral Magnet
• Spontaneous Skyrmion Ground States in Magnetic Metals
• Topological Hall effect in the A-phase of MnSi
• Skyrmion lattice with a giant topological Hall effect in a frustrated triangular-lattice magnet
• Unusual Hall Effect Anomaly in MnSi Under Pressure
• Skyrmion phase and competing magnetic orders on a breathing kagome lattice
• Nanometric square skyrmion lattice in a centrosymmetric tetragonal magnet
• Magnetoresistance Effects in SrFeO(3-x): Dependence on Phase Composition and Relation to Magnetic and Charge Order
• Versatile helimagnetic phases under magnetic fields in cubic perovskite SrFeO3
• Magnetism, Charge Order and Giant Magnetoresistance in SrFeO${}_{3-\delta }$ Single Crystals
• Meron-Like Topological Spin Defects in Monolayer CrCl3
• Meron, skyrmion, and vortex crystals in centrosymmetric tetragonal magnets
• Square skyrmion crystal in centrosymmetric itinerant magnets
• Emergent topological spin structures in a centrosymmetric cubic perovskite
• Properties and dynamics of meron topological spin textures in the two-dimensional magnet CrCl3
• Helicoidal ordering in iron perovskites
• Spinon Fermi surface spin liquid in a triangular lattice antiferromagnet NaYbSe${}_2$
• Nanometric skyrmion lattice from anisotropic exchange interactions in a centrosymmetric host
• Neutron diffraction study of spin and charge ordering in SrFeO(3-delta)
• Anomalous Hall resistivity and possible topological Hall effect in the EuAl${}_4$ antiferromagnet
• Zoology of multiple-Q spin textures in a centrosymmetric tetragonal magnet with itinerant electrons
• High resolution magnetostriction measurements in pulsed magnetic fields using Fibre Bragg Gratings
• Fractionalized excitations in the partially magnetized spin liquid candidate YbMgGaO4
• The Double-$Q$ Ground State with Topological Charge Stripes in the Skyrmion Candidate ${\text{GdRu}}_{\text{2}}{\text{Si}}_{\text{2}}$
• Band structure of helimagnons in MnSi resolved by inelastic neutron scattering
• Competing exchange interactions on the verge of a metal-insulator transition in the two-dimensional spiral magnet Sr${}_3$Fe${}_2$O${}_7$
• Spin order and fluctuations in the EuAl${}_4$ and EuGa${}_4$ topological antiferromagnets: A $\mu$SR study
• Incommensurate magnetic orders and topological Hall effect in the square-net centrosymmetric EuGa${}_2$Al${}_2$ system
• Magnetic phase diagram of $S{r}_{3}F{e}_2{O}_{7-x}$
• Magnetic phase diagram of the helimagnetic spinel compound ZnCr2Se4 revisited by small-angle neutron scattering
• Unconventional Hund Metal in a Weak Itinerant Ferromagnet
• Anomalous Magnetoresistance in Centrosymmetric Skyrmion-Lattice Magnet Gd2PdSi3
• Square skyrmion crystal in centrosymmetric systems with locally inversion-asymmetric layers
• Competing charge and magnetic order in the candidate centrosymmetric skyrmion host EuGa${}_2$Al${}_2$
• Hidden Charge Order in an Iron Oxide Square-Lattice Compound
• Reentrant multiple-$\mathbf{q}$ magnetic order and a "spin-cholesteric" phase in Sr${}_3$Fe${}_2$O${}_7$
• Neutron Scattering Study of Fluctuating and Static Spin Correlations in the Anisotropic Spin Glass Fe${}_2$TiO${}_5$
• Rich Magnetic Phase Diagram of Putative Helimagnet Sr${}_3$Fe${}_2$O${}_7$
• Floating Zone Growth of Large Single Crystals of SrFeO_3-x

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