Enhancement of the spin pumping efficiency by spin-wave mode selection

Abstract

The spin pumping efficiency of lateral standing spin wave modes in a rectangular YIG/Pt sample has been investigated by means of the inverse spin-Hall effect (ISHE). The standing spin waves drive spin pumping, the generation of spin currents from magnetization precession, into the Pt layer which is converted into a detectable voltage due to the ISHE. We discovered that the spin pumping efficiency is significantly higher for lateral standing surface spin waves rather than for volume spin wave modes. The results suggest that the use of higher-mode surface spin waves allows for the fabrication of an efficient spin-current injector.

References in corpus (3)

• Direct electronic measurement of the spin Hall effect
• Electrical detection of spin pumping due to the precessing magnetization of a single ferromagnet
• Charge and Spin Currents Generated by Dynamical Spins

Cited by in corpus (40)

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• Spin Insulatronics
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• Temporal behavior of the inverse spin Hall voltage in a magnetic insulator-nonmagnetic metal structure
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• Spin Waves in Ferromagnetic Insulators Coupled via a Normal Metal
• Rectification of radio frequency current in giant magnetoresistance spin valve
• Thermal spin current and spin accumulation at ferromagnetic insulator/nonmagnetic metal interface
• Spin-current injection and detection in strongly correlated organic conductor
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• Spin mixing conductance and spin magnetoresistance of iridate/manganite interface
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• Many-body theory of spin-current driven instabilities in magnetic insulators
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• Nonlocal optical generation of spin and charge currents on the surface of magnetic insulators using total absorption and surface plasmons
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