Intrinsic and extrinsic contributions to spin scattering in Pt

Abstract

We utilize nanoscale spin valves with Pt spacer layers to characterize spin scattering in Pt. Analysis of the spin lifetime determined from our measurements indicates that the extrinsic Elliot-Yafet spin scattering is dominant at room temperature, while the intrinsic Dyakonov-Perel mechanism dominates at cryogenic temperatures. The significance of the latter is supported by the suppression of spin relaxation in Pt layers interfaced with a ferromagnet, likely caused by the competition between the effective exchange and spin-orbit fields.

arXiv comment6 pages, 4 figures

References in corpus (35)

• Spintronics: Fundamentals and applications
• Spin torque switching with the giant spin Hall effect of tantalum
• New Perspectives for Rashba Spin-Orbit Coupling
• Magnetic switching by spin torque from the spin Hall effect
• Spin Transfer Torques
• Spin Caloritronics
• Spin Torque Ferromagnetic Resonance Induced by the Spin Hall Effect
• Spin transfer torque devices utilizing the giant spin Hall effect of tungsten
• Interface-Induced Phenomena in Magnetism
• Spin Pumping and Inverse Spin Hall Effect in Platinum: The Essential Role of Spin-Memory Loss at Metallic Interfaces
• Spin-Diffusion Lengths in Metals and Alloys, and Spin-Flipping at Metal/Metal Interfaces: an Experimentalist's Critical Review
• Role of transparency of platinum-ferromagnet interface in determining intrinsic magnitude of spin Hall effect
• Comparative Measurements of Inverse Spin Hall and Magnetoresistance in YIG|Pt and YIG|Ta
• Current induced torques and interfacial spin-orbit coupling: Semiclassical Modeling
• Dependence of the Efficiency of Spin Hall Torque on the Transparency of Pt-Ferromagnetic Layer Interfaces
• Spin torque study of the spin Hall conductivity and spin diffusion length in platinum thin films with varying resistivity
• Intrinsic spin Hall effect in platinum metal
• Giant Orbital Hall Effect in Transition Metals: Origin of Large Spin and Anomalous Hall Effects
• Giant Spin Hall Effect Induced by Skew Scattering from Bismuth Impurities inside Thin Film CuBi Alloys
• Temperature dependence of spin diffusion length and spin Hall angle in Au and Pt
• Scaling behavior of the spin pumping effect in ferromagnet/platinum bilayers
• Magneto-Optical Detection of the Spin Hall Effect in Pt and W Thin Films
• A unified theory of spin-relaxation due to spin-orbit coupling in metals and semiconductors
• Review and Analysis of Measurements of the Spin Hall Effect in Platinum
• Effect of Antiferromagnetic Interlayer Coupling on Current-Assisted Magnetization Switching
• Temperature dependence of spin polarization in ferromagnetic metals using lateral spin valves
• Surface spin flip probability of mesoscopic Ag wires
• Theory of spin loss at metallic interfaces
• Temperature-dependent proximity magnetism in Pt
• Spin relaxation mechanism in Silver nanowires covered with MgO protection layer
• Estimating spin diffusion length and spin Hall angle from spin pumping-induced inverse spin Hall voltages
• Emerging Magnetism in Platinum Nanowires
• Suppression of Dyakonov-Perel Spin Relaxation in high mobility n-GaAs
• Theory of Kondo suppression of spin polarization in nonlocal spin valves
• Determination of spin relaxation times in heavy metals via 2nd harmonic spin injection magnetoresistance

Cited by in corpus (20)

• Femtosecond formation dynamics of the spin Seebeck effect revealed by terahertz spectroscopy
• Disorder Dependence of Interface Spin Memory Loss
• Ultrafast spin-currents and charge conversion at 3d-5d interfaces probed by time-domain terahertz spectroscopy
• Generation of pure superconducting spin current in magnetic heterostructures via non-locally induced magnetism due to Landau Fermi-liquid effects
• Threshold Interface Magnetization Required to Induce Magnetic Proximity Effect
• Modeling ultrafast demagnetization and spin transport: the interplay of spin-polarized electrons and thermal magnons
• Dyakonov-Perel-like Orbital and Spin Relaxations in Centrosymmetric Systems
• Spin-Hall magnetoresistance in a low-dimensional magnetic insulator
• The importance of the interface for picosecond spin pumping in antiferromagnet-heavy metal heterostructures
• Charge-Spin Interconversion in Epitaxial Pt Probed by Spin-Orbit Torques in a Magnetic Insulator
• Calculating the spin memory loss at Cu$|$metal interfaces from first principles
• Spin-orbit-torque and magnetic damping in tailored ferromagnetic bilayers
• Spin-current-related magnetoresistance in epitaxial Pt/Co bilayers in the presence of spin Hall effect and Rashba-Edelstein effect
• 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
• Absorption of Transverse Spin Current in Ferromagnetic NiCu: Dominance of Bulk Dephasing over Spin-Flip Scattering
• Spin diffusion length associated to out-of-plane resistivity of Pt thin films in spin pumping experiments
• Variational approach to the stationary spin-Hall effect
• Terahertz time-domain signatures of the inverse Edelstein effect in topological-insulator|ferromagnet heterostructures
• Temperature dependence of charge-to-spin conversion in rhombohedral (110) bismuth thin film