Intrinsic spin-orbit torque mechanism for deterministic all-electric switching of noncollinear antiferromagnets

Abstract

Using a pure electric current to control kagome noncollinear antiferromagnets is promising in information storage and processing, but a full description is still lacking, in particular, on intrinsic (i.e., no external magnetic fields or external spin currents) spin-orbit torques. In this work, we self-consistently describe the relations among the electronic structure, magnetic structure, spin accumulations, and intrinsic spin-orbit torques, in the magnetic dynamics of a noncollinear antiferromagnet driven by a pure electric current. Our calculation can yield a critical current density comparable with those in the experiments, when considering the boost from the out-of-plane magnetic dynamics induced by the current-driven spin accumulation on individual magnetic moments. We stress the parity symmetry breaking in deterministic switching among magnetic structures. This work will be helpful for future applications of noncollinear antiferromagnets.

arXiv comment5 pages, 4 figures

References in corpus (17)

• Spin Torque Ferromagnetic Resonance Induced by the Spin Hall Effect
• Large anomalous Hall effect driven by non-vanishing Berry curvature in non-collinear antiferromagnetic Mn3Ge
• Anomalous Hall effect arising from noncollinear antiferromagnetism
• Large anomalous Nernst effect at room temperature in a chiral antiferromagnet
• Large magneto-optical Kerr effect and imaging of magnetic octupole domains in an antiferromagnetic metal
• Electrical Manipulation of a Topological Antiferromagnetic State
• Giant Anomalous Hall Effect in the Chiral Antiferromagnet Mn3Ge
• Strong, anisotropic anomalous Hall effect and spin Hall effect in chiral antiferromagnetic compounds Mn${}_{3}X$ ($X$ = Ge, Sn, Ga, Ir, Rh and Pt)
• Orbital ferromagnetism and anomalous Hall effect in antiferromagnets on distorted fcc lattice
• Spin-polarized current in non-collinear antiferromagnets
• Anomalous Nernst and Righi-Leduc effects in Mn${}_3$Sn: Berry curvature and entropy flow
• Anomalous Hall effect and topological defects in antiferromagnetic Weyl semimetals: Mn${}_3$Sn/Ge
• Anomalous Hall Effect in Thin Film of the Weyl Antiferromagnet Mn${}_3$Sn
• All-electrical switching of a topological non-collinear antiferromagnet at room temperature
• Current-Induced Torques in Magnetic Metals: Beyond Spin Transfer
• Magnetization switching in polycrystalline Mn3Sn thin film induced by self-generated spin-polarized current
• Real space Berry curvature of itinerant electron systems with spin-orbit interaction

Cited by in corpus (5)

• Electrical switching of altermagnetism
• Spin Hall and Edelstein Effects in Novel Chiral Noncollinear Altermagnets
• Out-of-plane Edelstein effects: Electric-field induced magnetization in $p$-wave magnets
• Quantum Geometric Origin of Orbital Magnetization
• Approaches to tunnel magnetoresistance effect with antiferromagnets