High-speed domain wall racetracks in a magnetic insulator

Abstract

Recent reports of current-induced switching of ferrimagnetic oxides coupled to a heavy metal layer have opened realistic prospects for implementing magnetic insulators into electrically addressable spintronic devices. However, key aspects such as the configuration and dynamics of magnetic domain walls driven by electrical currents in insulating oxides remain unexplored. Here, we investigate the internal structure of the domain walls in Tm3Fe5O12 (TmIG) and TmIG/Pt bilayers and demonstrate their efficient manipulation by spin-orbit torques with velocities of up to 400 m s${}^{-1}$ and minimal current threshold for domain wall flow of 5 x 10${}^6$ A cm${}^{-2}$. Domain wall racetracks embedded in TmIG are defined by the deposition of Pt current lines, which allow us to control the domain propagation and magnetization switching in selected regions of an extended magnetic layer. Scanning nitrogen-vacancy magnetometry reveals that the domain walls of thin TmIG films are Néel walls with left-handed chirality, with the domain wall magnetization rotating towards an intermediate Néel-Bloch configuration upon deposition of Pt. These results indicate the presence of a sizable interfacial Dzyaloshinskii-Moriya interaction in TmIG, which leads to novel possibilities to control the formation of chiral spin textures in magnetic insulators. Ultimately, domain wall racetracks provide an efficient scheme to pattern the magnetic landscape of TmIG in a fast and reversible way

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Cited by in corpus (53)

• Roadmap of spin-orbit torques
• Harnessing non-local orbital-to-spin conversion of interfacial orbital currents for efficient spin-orbit torques
• Magnetic texture based magnonics
• Topological Hall effect at above room temperature in heterostructures composed of a magnetic insulator and a heavy metal
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• Spin Insulatronics
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• Chirality as Generalized Spin-Orbit Interaction in Spintronics
• Current-driven dynamics and ratchet effect of skyrmion bubbles in a ferrimagnetic insulator
• Chiral Coupling between Magnetic Layers with Orthogonal Magnetization
• Defeating depolarizing fields with artificial flux closure in ultrathin ferroelectrics
• Co-existence of Bloch and Neel walls in a collinear antiferromagnet
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• Identifying the origin of the non-monotonic thickness dependence of spin-orbit torques and interfacial Dzyaloshinskii-Moriya interaction in a ferrimagnetic insulator heterostructure
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• Scanning nitrogen-vacancy center magnetometry in large in-plane magnetic fields
• Current-Induced Magnetization Control in Insulating Ferrimagnetic Garnets
• Anomalous Nernst effect in compensated ferrimagnetic CoxGd1-x films
• Mapping of Spin-Wave Transport in Thulium Iron Garnet Thin Films Using Diamond Quantum Microscopy
• Emergence of insulating ferrimagnetism and perpendicular magnetic anisotropy in 3d-5d perovskite oxide composite films for insulator spintronic
• Spin-wave driven bidirectional domain wall motion in kagome antiferromagnets
• Chirality-Induced Noncollinear Magnetization and Asymmetric Domain-Wall Propagation in Hydrogenated CoPd Thin Films
• Quantum magnetometry of transient signals with a time resolution of 1.1 nanoseconds
• Local control of a single nitrogen-vacancy center by nanoscale engineered magnetic domain wall motions
• Quantum Sensing of Spin Fluctuations of Magnetic Insulator Films with Perpendicular Anisotropy
• Stability of superconducting gap symmetries arising from antiferromagnetic magnons
• Magnetoresistive detection of perpendicular switching in a magnetic insulator
• Green's function formalism for nonlocal elliptical magnon transport
• Room Temperature Strong Orbital Moments in Perpendicularly Magnetized Magnetic Insulator
• Spin orbit torque-driven motion of quasi-Bloch domain wall in perpendicularly magnetized W/CoFeB/MgO structure
• Dzyaloshinskii-Moriya spin density by skew scattering
• Observation and Control of Chiral Spin Frustration in BiYIG Thin Films
• Magnetic domain wall dynamics under external electric field in bilayer CrI${}_3$
• Single-spin scanning magnetic microscopy with radial basis function reconstruction algorithm
• Harnessing Interlayer Magnetic Coupling for Efficient, Field-Free Current-Induced Magnetization Switching in a Magnetic Insulator
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• Leveraging symmetry for an accurate spin-orbit torques characterization in ferrimagnetic insulators
• Nonreciprocal superfluidlike topological spin transport
• Electrical detection of interfacial exchange field at the (ferromagnetic insulator)|(normal metal) interface using spin-dependent scattering
• Angular dependence of hump-shape Hall Effects for distinguishing between Karplus-Luttinger and Geometrical Origins
• Cryogenic Magnetization Dynamics in Chemically Stabilized, Tensile-Strained Ultrathin Yttrium Iron Garnets with Tunable Magnetic Anisotropy
• High-mobility inertial domain walls driven by spin-transfer torque in a ferrimagnetic spinel oxide
• High-pressure magnetic transition in iron observed via diamond quantum sensing
• Efficient domain wall motion in asymmetric magnetic tunnel junctions with vertical current flow
• Coherent Microwave Driving of Domain Wall Depinning in a Ferrimagnetic Garnet
• Magneto-Optical Analysis of Magnetic Anisotropy in Ultrathin Tm${}_3$Fe${}_5$O${}_{12}$/Pt Bilayers
• Giant Topological Hall Effect Across Wide Temperature in Pt/NiCo2O4 Heterostructure
• Nanodiamond Sensing of Stray Fields during Domain Reversal