Bridging magnonics and spin-orbitronics

Abstract

The emerging field of nano-magnonics utilizes high-frequency waves of magnetization - the spin waves - for the transmission and processing of information on the nanoscale. The advent of spin-transfer torque has spurred significant advances in nano-magnonics, by enabling highly efficient local spin-wave generation in magnonic nanodevices. Furthermore, the recent emergence of spin-orbitronics, which utilizes spin-orbit interaction as the source of spin torque, has provided a unique ability to exert spin torque over spatially extended areas of magnonic structures, enabling enhanced spin-wave transmission. Here, we experimentally demonstrate that these advances can be efficiently combined. We utilize the same spin-orbit torque mechanism for the generation of propagating spin waves, and for the long-range enhancement of their propagation, in a single integrated nano-magnonic device. The demonstrated system exhibits a controllable directional asymmetry of spin wave emission, which is highly beneficial for applications in non-reciprocal magnonic logic and neuromorphic computing.

References in corpus (11)

• The design and verification of Mumax3
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• The building blocks of magnonics
• Interface-Induced Phenomena in Magnetism
• Magnetic oscillations driven by the spin Hall effect in 3-terminal magnetic tunnel junction devices
• Generation of coherent spin-wave modes in Yttrium Iron Garnet microdiscs by spin-orbit torque
• Nanowire Spin Torque Oscillator Driven by Spin Orbit Torques
• Magnetization oscillations and waves driven by pure spin currents
• Direct observation and imaging of a spin-wave soliton with $p-$like symmetry
• Control of Propagating Spin Waves via Spin Transfer Torque in a Metallic Bilayer Waveguide
• Spin wave amplification using the spin Hall effect in permalloy/platinum bilayers

Cited by in corpus (28)

• Roadmap of spin-orbit torques
• An Introduction to Spin Wave Computing
• Magnetization Dynamics of Nanoscale Magnetic Materials: A Perspective
• Spin-Orbit-Torque Driven Propagating Spin Waves
• Spin-orbit-torque magnonics
• Controlled nonlinear magnetic damping in spin-Hall nano-devices
• Domain wall-based spin-Hall nano-oscillators
• True amplification of spin waves in magnonic nano-waveguides
• Evidence of standing spin-waves in a van der Waals magnetic material
• Fabrication of voltage gated spin Hall nano-oscillators
• Energy-efficient W${}_{\text{100-x}}$Ta${}_{\text{x}}$/CoFeB/MgO spin Hall nano-oscillators
• Width dependent auto-oscillating properties of constriction based spin Hall nano-oscillators
• Spin wave-driven variable-phase mutual synchronization in spin Hall nano-oscillators
• Applications of Nanomagnets as Dynamical Systems
• Spin-orbit torque control of spin waves in a ferromagnetic waveguide
• Bipolar spin Hall nano-oscillators
• Excitation and propagation of spin waves in non-uniformly magnetized waveguides
• Sustained coherent spin wave emission using frequency combs
• Effects of spin-orbit torque on the ferromagnetic and exchange spin wave modes in ferrimagnetic CoGd alloy
• Non-local magnon transconductance in extended magnetic insulating films.\\ Part I: spin diode effect
• Controllable excitation of quasi-linear and bullet modes in a spin-Hall nano-oscillator
• Unidirectional tilt of domain walls in equilibrium in biaxial stripes with Dzyaloshinskii-Moriya interaction
• Wideband Brillouin light scattering analysis of spin waves excited by a white-noise RF generator
• Spin orbit torque nano-oscillators by dipole field-localized spin wave modes
• Spin-current amplification by stimulated spin pumping
• Leveraging symmetry for an accurate spin-orbit torques characterization in ferrimagnetic insulators
• Spin-wave Goos-Hänchen effect induced by 360 degree domain walls in magnetic heterostructures
• Spin-wave emission with current-controlled frequency by a PMA-based spin-Hall oscillator