Spin circuit representation of spin pumping

Abstract

Circuit theory has been tremendously successful in translating physical equations into circuit elements in organized form for further analysis and proposing creative designs for applications. With the advent of new materials and phenomena in the field of spintronics and nanomagnetics, it is imperative to construct the spin circuit representations for different materials and phenomena. Spin pumping is a phenomenon by which a pure spin current can be injected into the adjacent layers. If the adjacent layer is a material with a high spin orbit coupling, a considerable amount of charge voltage can be generated via inverse spin Hall effect, allowing spin detection. Here we develop the spin circuit representation of spin pumping. We then combine it with the spin circuit representation for the materials having spin Hall effect to show that it reproduces the standard results in literature. We further show how complex multilayers can be analyzed by simply writing a netlist.

References in corpus (9)

• Dissipationless Quantum Spin Current at Room Temperature
• Direct electronic measurement of the spin Hall effect
• Non-collinear Magnetoelectronics
• Electrical detection of spin pumping due to the precessing magnetization of a single ferromagnet
• Interface enhancement of Gilbert damping from first-principles
• Spin Hall Angle Quantification from Spin Pumping and Microwave Photoresistance
• Voltage generation by ferromagnetic resonance
• Spin-Scattering Rates in Metallic Thin Films Measured by Ferromagnetic Resonance Damping Enhanced by Spin-Pumping
• Ultra-low-energy computing paradigm using giant spin Hall devices

Cited by in corpus (4)

• Estimating spin diffusion length and spin Hall angle from spin pumping-induced inverse spin Hall voltages
• Determining complex spin mixing conductance and spin diffusion length from spin pumping experiments in magnetic insulator/heavy metal bilayers
• Connecting physics to systems with modular spin-circuits
• Spin-circuit representation of spin-torque ferromagnetic resonance