Spin Injection and Detection via the Anomalous Spin Hall Effect in a Ferromagnetic Metal

Abstract

We report a novel spin injection and detection mechanism via the anomalous Hall effect in a ferromagnetic metal. The anomalous spin Hall effect (ASHE) refers to the transverse spin current generated within the ferromagnet. We utilize the ASHE and its reciprocal effect to electrically inject and detect magnons in a magnetic insulator in a non-local geometry. Our experiments reveal that permalloy can have a higher spin injection and detection efficiency to that of platinum, owing to the ASHE. We also demonstrate the tunability of the ASHE via the orientation of the permalloy magnetization, thus creating new possibilities for spintronic applications.

References in corpus (11)

• Anomalous Hall effect
• Spin torque switching with the giant spin Hall effect of tantalum
• Spin Torque Ferromagnetic Resonance Induced by the Spin Hall Effect
• Spin Seebeck insulator
• Room Temperature Reversible Spin Hall Effect
• Long distance transport of magnon spin information in a magnetic insulator at room temperature
• Magnon spin transport driven by the magnon chemical potential in a magnetic insulator
• Self-induced inverse spin Hall effect in permalloy at room temperature
• Direct detection of magnon spin transport by the inverse spin Hall effect
• Control of spin current by a magnetic YIG substrate in NiFe/Al nonlocal spin valves
• Anisotropic Hanle lineshape via anisotropic magnetothermoelectric phenomena

Cited by in corpus (41)

• Roadmap of spin-orbit torques
• Interface-generated spin currents
• Anomalous Spin-Orbit Torques in Magnetic Single-Layer Films
• Electrical control of magnetism by electric field and current-induced torques
• Intrinsic spin currents in ferromagnets
• Perspectives of Electrically generated spin currents in ferromagnetic materials
• An Intrinsic Spin Orbit Torque Nano-Oscillator
• Reorientable Spin Direction for Spin Current Produced by the Anomalous Hall Effect
• Perspective on Metallic Antiferromagnets
• Current-induced spin torques on single GdFeCo magnetic layers
• Relation between spin Hall effect and anomalous Hall effect in 3$d$ ferromagnetic metals
• Anomalous Hall magnetoresistance in a ferromagnet
• Origin of the Magnetic Spin Hall Effect: Spin Current Vorticity in the Fermi Sea
• Interfacial spin-orbit torques
• Large Spin Anomalous Hall Effect in L1${}_0$-FePt: Symmetry and Magnetization Switching
• Anomalous Hall effect in 2D Dirac materials
• Efficient injection and detection of out-of-plane spins via the anomalous spin Hall effect in permalloy nanowires
• Manipulation of coupling and magnon transport in magnetic metal-insulator hybrid structures
• Enhanced magnon spin transport in NiFe${}_2$O${}_4$ thin films on a lattice-matched substrate
• Magnetization direction dependent spin Hall effect in 3d ferromagnets
• Modulation of magnon spin transport in a magnetic gate transistor
• Spin-dependent (inverse) spin Hall effect in Co${}_{60}$Fe${}_{20}$B${}_{20}$
• All-electrical Magnon Transport Experiments in Magnetically Ordered Insulators
• The spin-flop transition in the quasi two dimensional antiferromagnet MnPS3 detected via thermally generated magnon transport
• Nonlocal magnon spin transport in yttrium iron garnet with tantalum and platinum spin injection/detection electrodes
• Fundamentals and applications of Van der Waals magnets in magnon spintronics
• Anomalous spin Hall angle of a metallic ferromagnet determined by a multiterminal spin injection/detection device
• Temperature dependence of the effective spin-mixing conductance probed with lateral non-local spin valves
• Exchange-driven spin Hall effect in anisotropic ferromagnets
• Zero-frequency chiral magnonic edge states protected by non-equilibrium topology
• Enhancement of Spin-Charge Conversion Efficiency for Co${}_3$Sn${}_2$S${}_2$ across Transition from Paramagnetic to Ferromagnetic Phase
• Ferrimagnet GdFeCo characterization for spin-orbitronics: large field-like and damping-like torques
• Electrically induced angular momentum flow between separated ferromagnets
• Theory for electrical detection of the magnon Hall effect induced by dipolar interactions
• Resonant Measurement of Non-Reorientable Spin-Orbit Torque from a Ferromagnetic Source Layer Accounting for Dynamic Spin Pumping
• Theoretical Study of Extrinsic Spin-current Generation in Ferromagnets Induced by Anisotropic Spin-flip Scattering
• Anisotropy-Driven Anomalous Inverse Orbital Hall Effect in Fe Films
• Perpendicularly Polarized Spin Hall Effects Induced by Spin-Dependent Scattering in Ferromagnetic Metals
• Intrinsic spin accumulation in the magnetic spin Hall effect
• Measuring the magnetic anisotropy of the spin Hall effect and spin relaxation length in nickel and permalloy via electrical spin injection
• Theory of magnetic spin and orbital Hall and Nernst effects in bulk ferromagnets