Measurement of spin pumping voltage separated from extrinsic microwave effects

Abstract

Conversions between spin and charge currents are core technologies in recent spintronics. In this article, we provide methods for estimating inverse spin Hall effects (ISHEs) induced by using microwave-driven spin pumping (SP) as a spin-current generator. ISHE and SP induce an electromotive force at the ferromagnetic or spin-wave resonance, which offers a valuable electric way to study spin physics in materials. At the resonance, a microwave for exciting the magnetization dynamics induces an additional electromotive force via rf-current rectification and thermoelectric effects. We discuss methods to separate the signals generated from such extrinsic microwave effects by controlling sample structures and configurations. These methods are helpful in performing accurate measurements on ISHE induced by SP, enabling quantitative studies on the conversion between spin and charge currents on various kinds of materials.

References in corpus (14)

• Dissipationless Quantum Spin Current at Room Temperature
• Spin Transfer Torques
• Direct electronic measurement of the spin Hall effect
• Spin Seebeck insulator
• Observation of the Spin-Seebeck Effect in a Ferromagnetic Semiconductor
• Scaling behavior of the spin pumping effect in ferromagnet/platinum bilayers
• Microwave photovoltage and photoresistance effects in ferromagnetic microstrips
• Phase reciprocity of spin-wave excitation by a microstrip antenna
• Electrical detection of the spin polarization due to charge flow in the surface state of the topological insulator Bi_1.5 Sb_0.5 Te_1.7 Se_1.3
• An experimental demonstration of room-temperature spin transport in n-type Germanium epilayers
• Magnonic Charge Pumping via Spin-Orbit Coupling
• Current-induced spin torque resonance of magnetic insulators
• Rectification of radio frequency current in ferromagnetic nanowire
• Broadband ferromagnetic resonance of Ni81Fe19 wires using a rectifying effect

Cited by in corpus (17)

• Maximizing Spin-Orbit Torque Generated by the Spin Hall Effect of Pt
• Ultrafast spin-currents and charge conversion at 3d-5d interfaces probed by time-domain terahertz spectroscopy
• Transverse and Longitudinal Spin-Torque Ferromagnetic Resonance for Improved Measurements of Spin-Orbit Torques
• Orbital Pumping in Ferrimagnetic Insulators
• Spin pumping and inverse spin Hall effect in CoFeB/IrMn heterostructures
• Evidence of Pure Spin-Current Generated by Spin Pumping in Interface Localized States in Hybrid Metal-Silicon-Metal Vertical Structures
• Coherent detection of the oscillating acoustoelectric effect in graphene
• Spin-to-charge conversion by spin pumping in sputtered polycrystalline Bi${}_x$Se${}_{1-x}$
• Dynamical Majorana Ising spin response in a topological superconductor-magnet hybrid by microwave irradiation
• Modulation of Spin Seebeck Effect by Hydrogenation
• Self-induced spin pumping and inverse spin Hall effect in single FePt thin films
• Coherent Spin Pumping Originated from Sub-Terahertz Néel Vector Dynamics in Easy Plane α-Fe2O3/Pt
• RF field characterization and rectification effects in spin pumping and spin-torque FMR for spin-orbitronics
• Spin pumping and inverse spin Hall effect in CoFeB/C${}_{60}$ bilayers
• Emergence of giant spin-orbit torque in a two-dimensional hole gas on the hydrogen-terminated diamond surface
• Distinguishing spin pumping from spin rectification in organic semiconductor-based lateral spin pumping device architectures
• Quantifying power flow processes mediated by spin currents