Determination of Penetration Depth of Transverse Spin Current in Ferromagnetic Metals by Spin Pumping

Abstract

Spin pumping in nonmagnetic/ferromagnetic metal multilayers is studied both theoretically and experimentally. We show that the line widths of the ferromagnetic resonance (FMR) spectrum depend on the thickness of the ferromagnetic metal layers, which must not be in resonance with the oscillating magnetic field. We also show that the penetration depths of the transverse spin current in ferromagnetic metals can be determined by analyzing the line widths of their FMR spectra. The obtained penetration depths in NiFe, CoFe and CoFeB were 3.7 [nm], 2.5 [nm] and 12.0 [nm], respectively.

4 pages, 2 figures,

References in corpus (4)

• Spin-Diffusion Lengths in Metals and Alloys, and Spin-Flipping at Metal/Metal Interfaces: an Experimentalist's Critical Review
• Non-collinear Magnetoelectronics
• Enhancement of the Gilbert damping constant due to spin pumping in noncollinear ferromagnet/nonmagnet/ferromagnet trilayer systems
• Spin-transfer in bilayer magnetic nanopillars at high fields as a function of free layer thickness

Cited by in corpus (24)

• Extrinsic spin Hall effects measured with lateral spin valve structures
• Critical current destabilizing perpendicular magnetization by the spin Hall effect
• Anomalous spin Hall magnetoresistance in Pt/Co bilayers
• Dephasing of Transverse Spin Current in Ferrimagnetic Alloys
• Spin and charge pumping in magnetic tunnel junctions with precessing magnetization: A nonequilibrium Green function approach
• Critical current of spin transfer torque-driven magnetization dynamics in magnetic multilayers
• Penetration Depth of Transverse Spin Current in Ferromagnetic Metals
• Magnetoresistance generated from charge-spin conversion by anomalous Hall effect in metallic ferromagnetic/nonmagnetic bilayers
• Multiscale approach to spin transport in magnetic multilayers
• Dissipation due to pure spin-current generated by spin pumping
• Spin-transfer torque in ferromagnetic bilayers generated by anomalous Hall effect and anisotropic magnetoresistance
• Spin decoherence independent of antiferromagnetic order in IrMn
• Measurement of the Spin Absorption Anisotropy in Lateral Spin Valves
• Characterization of spin relaxation anisotropy in Co using spin pumping
• Phase dynamics of oscillating magnetizations coupled via spin pumping
• Angle resolved relaxation of spin currents by antiferromagnets in spin valves
• Magnetoresistance originated from charge-spin conversion in ferromagnet
• Spin Pumping from Permalloy into Uncompensated Antiferromagnetic Co doped Zinc Oxide
• Out-of-plane auto-oscillation in spin Hall oscillator with additional polarizer
• Suppression of Spin Pumping at Metal Interfaces
• Phenomenological spin transport theory driven by anomalous Nernst effect
• Current-Induced Instability of a Perpendicular Ferromagnet in Spin Hall Geometry
• Proposal of an experimental scheme for determination of penetration depth of transverse spin current by a nonlocal spin valve
• Dependence of critical current of spin transfer torque-driven magnetization dynamics on free layer thickness