Skyrmionics in correlated oxides

Abstract

While chiral magnets, metal-based magnetic multilayers, or Heusler compounds have been considered as the material workhorses in the field of skyrmionics, oxides are now emerging as promising alternatives, as they host special correlations between the spin-orbital-charge-lattice degrees of freedom and/or coupled ferroic order parameters. These interactions open new possibilities for practically exploiting skyrmionics. In this article, we review the recent advances in the observation and control of topological spin textures in various oxide systems. We start with the discovery of skyrmions and related quasiparticles in bulk and heterostructure ferromagnetic oxides. Next, we emphasize the shortcomings of implementing ferromagnetic textures, which have led to the recent explorations of ferrimagnetic and antiferromagnetic oxide counterparts, with higher Curie temperatures, stray-field immunity, low Gilbert damping, ultrafast magnetic dynamics, and/or absence of skyrmion deflection. Then, we highlight the development of novel pathways to control the stability, motion, and detection of topological textures using electric fields and currents. Finally, we present the outstanding challenges that need to be overcome to achieve all-electrical, nonvolatile, low-power oxide skyrmionic devices.

Authors Zhi Shiuh Lim and Hariom Jani have contributed equally; 22 Pages, 4 Figures; Keywords: Spintronics, Topology, Oxides, Ferrimagnets, Antiferromagnets, Skyrmions, Beyond-Moore Computing

References in corpus (47)

• Skyrmion Lattice in a Chiral Magnet
• Advances in the Physics of Magnetic Skyrmions and Perspective for Technology
• Spin Transfer Torques in MnSi at Ultra-low Current Densities
• Direct Observation of the Skyrmion Hall Effect
• Emergent electrodynamics of skyrmions in a chiral magnet
• Skyrmion Hall Effect Revealed by Direct Time-Resolved X-Ray Microscopy
• Tunable Room Temperature Magnetic Skyrmions in Ir/Fe/Co/Pt Multilayers
• Skyrmion lattice with a giant topological Hall effect in a frustrated triangular-lattice magnet
• Discovery of Magnetic Antiskyrmions Beyond Room Temperature in Tetragonal Heusler Materials
• Theory of current-driven motion of Skyrmions and spirals in helical magnets
• Static and Dynamical Properties of Antiferromagnetic Skyrmions in the Presence of Applied Current and Temperature
• Robust isothermal electric switching of interface magnetization: A route to voltage-controlled spintronics
• Electrically controlled long-distance spin transport through an antiferromagnetic insulator
• Multiply periodic states and isolated skyrmions in an anisotropic frustrated magnet
• Topological Hall effect and Berry phase in magnetic nanostructures
• Interface-driven topological Hall effect in SrRuO${}_3$-SrIrO${}_3$ bilayer
• Structural and doping effects in the half-metallic double perovskite $A_2$CrWO${}_6$
• Topological Nature of Anomalous Hall Effect in Ferromagnet
• The 2020 Skyrmionics Roadmap
• Full phase diagram of isolated skyrmions in a ferromagnet
• Thermally Driven Ratchet Motion of Skyrmion Microcrystal and Topological Magnon Hall Effect
• Interplay of Spin-Orbit Interactions, Dimensionality, and Octahedral Rotations in Semimetallic SrIrO${}_3$
• Electrical detection of magnetic skyrmions by non-collinear magnetoresistance
• Antiferromagnetic Half-skyrmions and Bimerons at room temperature
• Ultra-low damping insulating magnetic thin films get perpendicular
• Magnetoelectric nature of skyrmions in a chiral magnetic insulator Cu2OSeO3
• Néel-type skyrmion lattice in tetragonal polar magnet VOSe${}_2$O${}_5$
• Giant topological Hall effect in correlated oxide thin films
• Topological Hall effect at above room temperature in heterostructures composed of a magnetic insulator and a heavy metal
• Emerging magnetism and anomalous Hall effect in iridate-manganite heterostructures
• Real-Space Berry Phases - Skyrmion Soccer
• Current-Induced Dynamics and Chaos of Antiferromagnetic Bimerons
• An alternative to the topological interpretation of the transverse resistivity anomalies in SrRuO3
• Experimental creation and annihilation of nonvolatile magnetic skyrmions using voltage control of magnetic anisotropy without an external magnetic field
• Band alignment and charge transfer in complex oxide interfaces
• Observation of magnetic vortex pairs at room temperature in a planar α-Fe2O3/Co heterostructure
• Controllable thickness inhomogeneity and Berry-curvature-engineering of anomalous Hall effect in SrRuO3 ultrathin films
• Interfacial Dzyaloshinskii-Moriya interaction and chiral magnetic textures in a ferrimagnetic insulator
• Berry phase engineering at oxide interfaces
• Magnetoelectric Resonances and Predicted Microwave Diode Effect of Skyrmion Crystal in Multiferroic Chiral-Lattice Magnet
• Spin-Hall Topological Hall Effect in Highly Tunable Pt/Ferrimagnetic-Insulator Bilayers
• Deterministic field-free skyrmion nucleation at a nano-engineered injector device
• Exploring interfacial exchange coupling and sublattice effect in heavy metal/ferrimagnetic insulator heterostructures using Hall measurements, x-ray magnetic circular dichroism, and neutron reflectometry
• Lorentz microscopy and small-angle electron diffraction study of magnetic textures in La${}_{1-x}$Sr${}_x$MnO${}_3$ (0.15 $<x<$ 0.30): the role of magnetic anisotropy
• Coherent magneto-elastic domains in multiferroic BiFeO3 films
• Topological Hall Effect and Skyrmion-like Bubbles at a Charge-transfer Interface
• Micromagnetic modelling and imaging of vortex|merons structures in an oxide|metal heterostructure