Quantitative Study on Current-Induced Effect in an Antiferromagnet Insulator/Pt Bilayer Film

Abstract

Quantitative investigation on the current-induced torque in antiferromagnets represents a great challenge, due to the lack of an independent method for controlling Néel vectors. Here by utilizing an antiferromagnetic insulator with Dzyaloshinskii-Moriya interaction, α-Fe2O3, we show that the Néel vector can be controlled with a moderate external field, which is further utilized to calibrate the current-induced magnetic dynamics. We find that the current-induced magnetoresistance change in antiferromagnets can be complicated by resistive switching that does not have a magnetic origin. By excluding non-magnetic switching and comparing the current-induced dynamics with the field-induced one, we determine the nature and magnitude of current-induced effects in Pt/α-Fe2O3 bilayer films.

References in corpus (24)

• Magnetic switching by spin torque from the spin Hall effect
• ELATE: An open-source online application for analysis and visualization of elastic tensors
• Electrical switching of an antiferromagnet
• Symmetry and magnitude of spin-orbit torques in ferromagnetic heterostructures
• Electrically controlled long-distance spin transport through an antiferromagnetic insulator
• Quantitative characterization of the spin orbit torque using harmonic Hall voltage measurements
• Dependence of the Efficiency of Spin Hall Torque on the Transparency of Pt-Ferromagnetic Layer Interfaces
• Spin torque study of the spin Hall conductivity and spin diffusion length in platinum thin films with varying resistivity
• Writing and Reading antiferromagnetic Mn${}_2$Au: Néel spin-orbit torques and large anisotropic magnetoresistance
• Antidamping torque-induced switching in biaxial antiferromagnetic insulators
• Tuning the spin Hall effect of Pt from the moderately dirty to the superclean regime
• Imaging current-induced switching of antiferromagnetic domains in CuMnAs
• Spin Hall magnetoresistance in antiferromagnet/heavy-metal heterostructures
• 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
• Mechanism of Néel order switching in antiferromagnetic thin films revealed by magnetotransport and direct imaging
• Electrically induced and detected Néel vector reversal in a collinear antiferromagnet
• Full angular dependence of the spin Hall and ordinary magnetoresistance in epitaxial antiferromagnetic NiO(001)/Pt thin films
• THz-Frequency Spin-Hall Auto-Oscillator Based on a Canted Antiferromagnet
• Spin Seebeck imaging of spin-torque switching in antiferromagnetic Pt/NiO heterostructures
• Imaging of current induced Néel vector switching in antiferromagnetic Mn${}_2$Au
• Negative spin Hall magnetoresistance in antiferromagnetic Cr2O3/Ta bilayer at low temperature region
• Antiferromagnetic textures and dynamics on the surface of a heavy metal
• Deficiency of the Bulk Spin Hall Effect Model for Spin-Orbit Torques in Magnetic Insulator/Heavy Metal Heterostructures

Cited by in corpus (48)

• Roadmap of spin-orbit torques
• Antiferromagnetic Half-skyrmions and Bimerons at room temperature
• Electric-Field-Controlled Antiferromagnetic Spintronic Devices
• 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
• Efficient spin torques in antiferromagnetic CoO/Pt quantified by comparing field- and current- induced switching
• 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
• Strong variation of spin-orbit torques with relative spin relaxation rates in ferrimagnets
• All-antiferromagnetic electrically controlled memory on silicon featuring large tunneling magnetoresistance
• Magneto-Seebeck microscopy of domain switching in collinear antiferromagnet CuMnAs
• Identification of Néel vector orientation in antiferromagnetic domains switched by currents in NiO/Pt thin films
• 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
• Spin-orbit torque induced electrical switching of antiferromagnetic MnN
• Observation of Vector Spin Seebeck Effect in a Noncollinear Antiferromagnet
• Antiferromagnetic insulatronics: spintronics in insulating 3d metal oxides with antiferromagnetic coupling
• Quantifying Spin-Orbit Torques in Antiferromagnet/Heavy Metal Heterostructures
• Voltage-controlled magnetic anisotropy in antiferromagnetic MgO-capped MnPt films
• 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${}_3$
• All-electrical Magnon Transport Experiments in Magnetically Ordered Insulators
• Terahertz cavity magnon polaritons
• Engineering antiferromagnetic skyrmions and antiskyrmions at metallic interfaces
• Non-classical spin transfer effects in an antiferromagnet
• Effective strain manipulation of the antiferromagnetic state of polycrystalline NiO
• Thermal effects in spintronic materials and devices: an experimentalist's guide
• Single- and Multimagnon Dynamics in Antiferromagnetic $\alpha$-Fe${}_2$O${}_3$ Thin Films
• Magnetic parity violation and parity-time-reversal-symmetric magnets
• Systematic study of nonmagnetic resistance changes due to electrical pulsing in single metal layers and metal/antiferromagnet bilayers
• Thermal Contribution in the Electrical Switching Experiments with Heavy Metal / Antiferromagnet Structures
• Low-Energy Switching of Antiferromagnetic CuMnAs/ GaP Using sub-10 Nanosecond Current Pulses
• 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
• Vector spin Seebeck effect and spin swapping effect in antiferromagnetic insulators with non-collinear spin structure
• Identifying Switching of Antiferromagnets by Spin-Orbit Torques
• Ferroelectric control of Néel vector in L10 type of antiferromagnetic films
• Anisotropic Field Suppression of Morin Transition Temperature in Epitaxially Grown Hematite Thin Films
• Large spin-orbit torque in a-plane $\alpha$-Fe${}_2$O${}_3$/Pt bilayers
• Picosecond transfer from short-term to long-term memory in analog antiferromagnetic memory device
• Current-induced in-plane magnetization switching in biaxial ferrimagnetic insulator
• First-principles calculations of spin-orbit torques in Mn${}_2$Au/heavy-metal bilayers
• Ultrafast amplification and non-linear magneto-elastic coupling of coherent magnon modes in an antiferromagnet
• Direct and inverse spin-orbit torques in antiferromagnetic and ferromagnetic FeRh/W(001)
• Electrical switching of antiferromagnetic CoO | Pt across the Néel temperature