Electrical detection of spin pumping due to the precessing magnetization of a single ferromagnet

Abstract

We report direct electrical detection of spin pumping, using a lateral normal metal/ferromagnet/normal metal device, where a single ferromagnet in ferromagnetic resonance pumps spin polarized electrons into the normal metal, resulting in spin accumulation. The resulting backflow of spin current into the ferromagnet generates a d.c. voltage due to the spin dependent conductivities of the ferromagnet. By comparing different contact materials (Al and /or Pt), we find, in agreement with theory, that the spin related properties of the normal metal dictate the magnitude of the d.c. voltage.

References in corpus (8)

• Basic obstacle for electrical spin-injection from a ferromagnetic metal into a diffusive semiconductor
• Enhanced Gilbert Damping in Thin Ferromagnetic Films
• Finite-element theory of transport in ferromagnet-normal metal systems
• Spin battery operated by ferromagnetic resonance
• Dynamic exchange coupling in magnetic bilayers
• Voltage generation by ferromagnetic resonance
• Electrical detection of spin accumulation and spin precession at room temperature in metallic spin valves
• On-chip detection of ferromagnetic resonance of a single submicron permalloy strip

Cited by in corpus (122)

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• Experimental observation of a large ac-spin Hall effect
• Large Spin Pumping from Epitaxial Y3Fe5O12 Thin Films to Pt and W Layers
• Spin pumping by a field-driven domain wall
• Prediction of Giant Spin Motive Force due to Rashba Spin-Orbit Coupling
• Quantitative Temperature Dependence of Longitudinal Spin Seebeck Effect at High Temperatures
• Identification and selection rules of the spin-wave eigen-modes in a normally magnetized nano-pillar
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• Spin current generation from sputtered Y3Fe5O12 films
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• Diffusive versus local spin currents in dynamic spin pumping systems
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• Self-consistent calculation of spin transport and magnetization dynamics
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• Observation of nuclear-spin Seebeck effect
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• Charge and Spin Currents Generated by Dynamical Spins
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• Anisotropic magneto-thermal transport and Spin-Seebeck effect
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