Spin Hall Angle Quantification from Spin Pumping and Microwave Photoresistance

Abstract

We present a method to quantify the spin Hall angle (SHA) with spin pumping and microwave photoresistance measurements. With this method, we separate the inverse spin Hall effect (ISHE) from other unwanted effects for permalloy/Pt bilayers using out-of-plane microwave excitation. Through microwave photoresistance measurements, the in- and out-of-plane precessing angles of the magnetization are determined and enabled for the exact determination of the injected pure spin current. This method is demonstrated with an almost perfect Lorentz line-shape for the obtained ISHE signal and the frequency independent SHA value as predicted by theory. By varying the Pt thickness, the SHA and spin-diffusion length of Pt is quantified as 0.012 (0.001) and 8.3 (0.9) nm, respectively.

20 pages, 4 figures

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• Spin Hall effect
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• Direct electronic measurement of the spin Hall effect
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• On the line shape of the electrically detected ferromagnetic resonance
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• Electrical detection of spin pumping: dc voltage generated by ferromagnetic resonance at ferromagnet/nonmagnet contact

Cited by in corpus (50)

• Spin Pumping and Inverse Spin Hall Effect in Platinum: The Essential Role of Spin-Memory Loss at Metallic Interfaces
• Comparative Measurements of Inverse Spin Hall and Magnetoresistance in YIG|Pt and YIG|Ta
• Spin torque study of the spin Hall conductivity and spin diffusion length in platinum thin films with varying resistivity
• Control and Local Measurement of the Spin Chemical Potential in a Magnetic Insulator
• Determination of intrinsic spin Hall angle in Pt
• Electrical Detection of Magnetization Dynamics via Spin Rectification Effects
• Spin Transport at Interfaces with Spin-Orbit Coupling: Formalism
• Broadband terahertz generation via the interface inverse Rashba-Edelstein effect
• Magnon Mediated Electric Current Drag Across a Ferromagnetic Insulator Layer
• Observation of inverse spin Hall effect in bismuth selenide
• Spin convertance at magnetic interfaces
• Spin pumping damping and magnetic proximity effect in Pd and Pt spin-sink layers
• Platinum thickness dependence of the inverse spin-Hall voltage from spin pumping in a hybrid YIG/Pt system
• Inverse Spin Hall Effect in NiFe / Normal Metal Bilayers
• A Universal Method for Separating Spin Pumping from Spin Rectification Voltage of Ferromagnetic Resonance
• Dependence of spin pumping spin Hall effect measurements on layer thicknesses and stacking order
• FMR-related phenomena in spintronic devices
• Determination of spin Hall effect and spin diffusion length of Pt from self-consistent fitting of damping enhancement and inverse spin-orbit torque measurements
• Experimental evidences of a large extrinsic spin Hall effect in AuW alloy
• Anisotropic magnetoresistance: materials, models and applications
• Anomalous Nernst and Hall effects in magnetized platinum and palladium
• Switching magnon chirality in artificial antiferromagnet
• Anisotropic magnetoresistance driven by surface spin orbit scattering
• Determination of the spin Hall angle, spin mixing conductance and spin diffusion length in Ir/CoFeB for spin-orbitronic devices
• Important role of magnetization precession angle measurement in inverse spin Hall effect induced by spin pumping
• Determination of the spin Hall angle in single-crystalline Pt films from spin pumping experiments
• Large spin-to-charge conversion at room temperature in extended epitaxial Sb2Te3 topological insulator chemically grown on Silicon
• Calculating spin transport properties from first principles: spin currents
• Temperature Dependence of Angular Momentum Transport Across Interfaces
• High temperature superconductivity in the two-dimensional $t$-$J$ model: Gutzwiller wave function solution
• Ferromagnetic resonance spin pumping in CoFeB with highly resistive non-magnetic electrodes
• Estimating spin diffusion length and spin Hall angle from spin pumping-induced inverse spin Hall voltages
• Spin transparency for an interface of an ultrathin magnet within the spin dephasing length
• Anatomy of electrical signals and dc-voltage lineshape in spin torque ferromagnetic resonance
• Planar Hall effect induced spin rectification effect and its strong impact on spin pumping measurements
• Low offset frequency $1/f$ flicker noise in spin torque vortex oscillators
• Enhanced Inverse Spin-Hall Effect in Ultrathin Ferromagnetic/Normal Metal Bilayers
• Negligible thermal contributions to the spin pumping signal in ferromagnetic metal-Platinum bilayers
• Manipulation of Inverse Spin Hall Effect in Palladium by Absorption of Hydrogen Gas
• Determining complex spin mixing conductance and spin diffusion length from spin pumping experiments in magnetic insulator/heavy metal bilayers
• Spin circuit representation of spin pumping
• Spin rectification for collinear and non-collinear magnetization and external magnetic field configurations
• Giant spin-charge conversion in ultrathin films of the MnPtSb half-Heusler compound
• Determination of the spin Hall angle by the inverse spin Hall effect, device level ferromagnetic resonance, and spin torque ferromagnetic resonance: a comparison of methods
• Nearly isotropic spin-pumping related Gilbert damping in Pt/Ni${}_{81}$Fe${}_{19}$/Pt
• Spin diffusion length associated to out-of-plane resistivity of Pt thin films in spin pumping experiments
• Gate-Tunable Spin-to-Charge Conversion in Topological Insulator-Magnetic Insulator Heterostructures at Room Temperature
• Spin Hall effects in mesoscopic Pt films with high resistivity
• RF field characterization and rectification effects in spin pumping and spin-torque FMR for spin-orbitronics
• Quantifying power flow processes mediated by spin currents