Anomalous Hall effect and spin orbit torques in MnGa/IrMn films: Modification from strong spin Hall effect of antiferromagnet

Abstract

We report systematic measurements of anomalous Hall effect(AHE) and spin orbit torques(SOT) in MnGa/IrMn films,, in which a single MnGa epitaxial layer reveals obvious orbital two-channel Kondo (2CK) effect. As increasing the thickness of the antiferromagnet IrMn, the strong spin Hall effect(SHE)has gradually suppressed the orbital 2CK effect and modified the AHE of MnGa.A scaling involving multiple competing scattering mechanisms has been used to distinguish different contributions to the modified AHE. Finally, the sizeable SOT in the MnGa/IrMn films induced by the strong SHE of IrMn have been investigated.The IrMn layer also supplies an in-plane exchange bias field and enables nearly field-free magnetization reversal.

References in corpus (29)

• Berry Phase Effects on Electronic Properties
• Spin torque switching with the giant spin Hall effect of tantalum
• Spin Hall effect
• Universal Intrinsic Spin-Hall Effect
• Magnetic switching by spin torque from the spin Hall effect
• Current-driven dynamics of chiral ferromagnetic domain walls
• Symmetry and magnitude of spin-orbit torques in ferromagnetic heterostructures
• Spin Hall Magnetoresistance Induced by a Non-Equilibrium Proximity Effect
• Switching of perpendicular magnetization by spin-orbit torques in the absence of external magnetic fields
• Wave-packet dynamics in slowly perturbed crystals: Gradient corrections and Berry-phase effects
• Magnetization switching by spin-orbit torque in an antiferromagnet/ferromagnet bilayer system
• Anomalous Hall effect in ferromagnetic semiconductors
• Layer thickness dependence of the current induced effective field vector in Ta|CoFeB|MgO
• Universal Scaling Behavior of Anomalous Hall Effect and Anomalous Nernst Effect in Itinerant Ferromagnets
• Proper Scaling of the Anomalous Hall Effect
• Intrinsic vs. extrinsic anomalous Hall effect in ferromagnets
• Interplay of spin-orbit torque and thermoelectric effects in ferromagnet/normal metal bilayers
• Field-free magnetization reversal by spin-Hall effect and exchange bias
• Topological Nature of Anomalous Hall Effect in Ferromagnet
• Theory of the anomalous Hall effect from the Kubo formula and the Dirac equation
• Spin-orbit torque engineering via oxygen manipulation
• Linear magnetization dependence of the intrinsic anomalous Hall effect
• Angular and temperature dependence of current induced spin-orbit effective fields in Ta/CoFeB/MgO nanowires
• Fieldlike and antidamping spin-orbit torques in as-grown and annealed Ta/CoFeB/MgO layers
• Multivariable Scaling for the Anomalous Hall Effect
• Scaling of the anomalous Hall effect in Sr${}_{1-x}$Ca${}_x$RuO${}_3$
• All electrical manipulation of magnetization dynamics in a ferromagnet by antiferromagnets with anisotropic spin Hall effects
• Tailoring Magnetism of Perpendicularly Magnetized MnxGa Epitaxial Films on GaAs for Practical Applications
• Orbital two-channel Kondo effect in epitaxial ferromagnetic L10-MnAl films

Cited by in corpus (9)

• A conductive topological insulator with colossal spin Hall effect for ultra-low power spin-orbit-torque switching
• Electrical current switching of the noncollinear antiferromagnet Mn${}_3$GaN
• Robust formation of topological Hall effect in MnGa/heavy metal bilayers
• Disorder dependent spin-orbit torques in L10 FePt single layer
• Enhanced spin-orbit torques in MnAl/Ta films with improving chemical ordering
• Spin-Orbit-Torque Field-Effect Transistor (SOTFET): Proposal for a New Magnetoelectric Memory
• Interface-driven unusual anomalous Hall effect in MnxGa/Pt bilayers: No correlation with chiral spin structures
• Perpendicularly magnetized YIG films with small Gilbert damping constant and anomalous spin transport properties
• Controlling spin-orbit torque by polarization field in multiferroic BiFeO3 based heterostructures