Mechanism of Néel order switching in antiferromagnetic thin films revealed by magnetotransport and direct imaging

Abstract

We probe the current-induced magnetic switching of insulating antiferromagnet/heavy metals systems, by electrical spin Hall magnetoresistance measurements and direct imaging, identifying a reversal occurring by domain wall (DW) motion. We observe switching of more than one third of the antiferromagnetic domains by the application of current pulses. Our data reveal two different magnetic switching mechanisms leading together to an efficient switching, namely the spin-current induced effective magnetic anisotropy variation and the action of the spin torque on the DWs.

arXiv comment26 pages, including supplementary material

References in corpus (24)

• Antiferromagnetic spintronics
• Current-induced spin-orbit torques in ferromagnetic and antiferromagnetic systems
• Electrical switching of an antiferromagnet
• Spin Hall Magnetoresistance Induced by a Non-Equilibrium Proximity Effect
• Electrically controlled long-distance spin transport through an antiferromagnetic insulator
• Relativistic Neel-order fields induced by electrical current in antiferromagnets
• Writing and Reading antiferromagnetic Mn${}_2$Au: Néel spin-orbit torques and large anisotropic magnetoresistance
• Field-free magnetization reversal by spin-Hall effect and exchange bias
• Antidamping torque-induced switching in biaxial antiferromagnetic insulators
• Spin transfer and current-induced switching in antiferromagnets
• Staggering antiferromagnetic domain wall velocity in a staggered spin-orbit field
• Antiferromagnetic domain wall motion driven by spin-orbit torques
• Imaging current-induced switching of antiferromagnetic domains in CuMnAs
• Spin Hall magnetoresistance in antiferromagnet/heavy-metal heterostructures
• Superfluid spin transport through antiferromagnetic insulators
• Negative spin Hall magnetoresistance of Pt on the bulk easy-plane antiferromagnet NiO
• Electrical switching of antiferromagnetic Mn${}_2$Au and the role of thermal activation
• Current-polarity dependent manipulation of antiferromagnetic domains
• Tunable sign change of spin Hall magnetoresistance in Pt/NiO/YIG structures
• Full angular dependence of the spin Hall and ordinary magnetoresistance in epitaxial antiferromagnetic NiO(001)/Pt thin films
• Role of dimensional crossover on spin-orbit torque efficiency in magnetic insulator thin films
• Spin Seebeck imaging of spin-torque switching in antiferromagnetic Pt/NiO heterostructures
• Symmetry and the macroscopic dynamics of antiferromagnetic materials in the presence of spin-polarized current
• Spin transport in multilayer systems with fully epitaxial NiO thin films

Cited by in corpus (66)

• Current-induced spin-orbit torques in ferromagnetic and antiferromagnetic systems
• Observation of spin-splitter torque in collinear antiferromagnetic RuO${}_2$
• Electrical Switching of Tristate Antiferromagnetic Néel Order in $\alpha$-Fe${}_2$O${}_3$ Epitaxial Films
• Quantitative Study on Current-Induced Effect in an Antiferromagnet Insulator/Pt Bilayer Film
• Perspective on Metallic Antiferromagnets
• Coexistence of Anomalous Hall Effect and Weak Net Magnetization in Collinear Antiferromagnet MnTe
• Direct imaging of current-induced antiferromagnetic switching revealing a pure thermomagnetoelastic switching mechanism
• Antiferromagnetic Tunnel Junctions for Spintronics
• Propagation length of antiferromagnetic magnons governed by domain configurations
• Coherent transfer of spin angular momentum by evanescent spin waves within antiferromagnetic NiO
• Co-existence of Bloch and Neel walls in a collinear antiferromagnet
• Imaging Antiferromagnetic Domains in Nickel-oxide Thin Films by Magneto-optical Voigt Effect
• Efficient spin torques in antiferromagnetic CoO/Pt quantified by comparing field- and current- induced switching
• Nonvolatile Electric Field Control of Thermal Magnons in the Absence of an Applied Magnetic Field
• Efficient Spin-Orbit Torques in an Antiferromagnetic Insulator with Tilted Easy Plane
• Observation of current-induced switching in non-collinear antiferromagnetic IrMn${}_3$ by differential voltage measurements
• Readout of a antiferromagnetic spintronics systems by strong exchange coupling of Mn2Au and Permalloy
• Spin Hall magnetoresistance in antiferromagnetic insulators
• Strong variation of spin-orbit torques with relative spin relaxation rates in ferrimagnets
• Magnetoresistance effects in the metallic antiferromagnet Mn${}_2$Au
• Giant effective damping of octupole oscillation in an antiferromagnetic Weyl semimetal
• Identification of Néel vector orientation in antiferromagnetic domains switched by currents in NiO/Pt thin films
• Ultrafast antiferromagnetic switching in NiO induced by spin transfer torques
• Magneto-Seebeck microscopy of domain switching in collinear antiferromagnet CuMnAs
• Concurrent magneto-optical imaging and magneto-transport readout of electrical switching of insulating antiferromagnetic thin films
• Direct Imaging of Electrical Switching of Antiferromagnetic Néel Order in $\alpha$-Fe${}_2$O${}_3$ Epitaxial Films
• Enhancement of spin Hall conductivity in W-Ta alloy
• Spin-orbit torque induced electrical switching of antiferromagnetic MnN
• Resistive contribution in electrical switching experiments with antiferromagnets
• Emerging spintronics phenomena and applications
• Defect-driven antiferromagnetic domain walls in CuMnAs films
• Antiferromagnetic insulatronics: spintronics in insulating 3d metal oxides with antiferromagnetic coupling
• Optical imaging of antiferromagnetic domains in ultrathin CoO(001) films
• Third Harmonic Characterization of Antiferromagnetic Heterostructures
• Role of substrate clamping on anisotropy and domain structure in the canted antiferromagnet $\alpha$-Fe${}_2$O${}_3$
• Domain Walls in a Row-Wise Antiferromagnetic Mn Monolayer
• Strain-induced Shape Anisotropy in Antiferromagnetic Structures
• Spin-Orbit Torque Switching of Noncollinear Antiferromagnetic Antiperovskite Manganese Nitride Mn${}_3$GaN
• All-electrical Magnon Transport Experiments in Magnetically Ordered Insulators
• Terahertz cavity magnon polaritons
• An insulating doped antiferromagnet with low magnetic symmetry as a room temperature spin conduit
• Direct Observation of Antiferromagnetic Parity Violation in the Electronic Structure of Mn${}_2$Au
• Thermal effects in spintronic materials and devices: an experimentalist's guide
• Effective strain manipulation of the antiferromagnetic state of polycrystalline NiO
• Electrical detection of the spin reorientation transition in antiferromagnetic TmFeO${}_3$ thin films by spin Hall magnetoresistance
• Laser-induced Creation of antiferromagnetic 180-degree domains in NiO/Pt bilayers
• Hysteretic effects and magnetotransport of electrically switched CuMnAs
• Systematic study of nonmagnetic resistance changes due to electrical pulsing in single metal layers and metal/antiferromagnet bilayers
• Low-Energy Switching of Antiferromagnetic CuMnAs/ GaP Using sub-10 Nanosecond Current Pulses
• Thermal Contribution in the Electrical Switching Experiments with Heavy Metal / Antiferromagnet Structures
• Magnetically switchable spin wave retarder with $90^{\circ }$ antiferromagnetic domain wall
• Identifiying the domain wall spin structure in current-induced switching of antiferromagnetic NiO/Pt
• Spin orbit torque switching of antiferromagnet through the Neel reorientation in rare-earth ferrite
• Magnetic sensitivity distribution of Hall devices in antiferromagnetic switching experiments
• Scaling the electrical current switching of exchange bias in fully-epitaxial antiferromagnet/ferromagnet bilayers
• Ferroelectric control of Néel vector in L10 type of antiferromagnetic films
• Large spin-orbit torque in a-plane $\alpha$-Fe${}_2$O${}_3$/Pt bilayers
• Majorana modes in helical altermagnet without net magnetism and spin-orbit coupling
• Gating effects in antiferromagnetic CuMnAs
• Geometric phase and a nonreciprocal spin wave circular polarizer
• Current-induced in-plane magnetization switching in biaxial ferrimagnetic insulator
• Disentangling electrical switching of antiferromagnetic NiO using high magnetic fields
• Vortex propagation and phase transitions in a chiral antiferromagnetic nanostripe
• Collective spin dynamics under dissipative spin Hall torque
• First-principles calculations of spin-orbit torques in Mn${}_2$Au/heavy-metal bilayers
• Electrical switching of antiferromagnetic CoO | Pt across the Néel temperature