Spin Pumping Driven by Bistable Exchange Spin Waves

Abstract

Spin pumping driven by bistable exchange spin waves is demonstrated in a Pt/Y${}_3$Fe${}_5$O${}_{12}$ film under parametric excitation. In the Pt/Y${}_3$Fe${}_5$O${}_{12}$ film, the spin pumping driven by parametric excitation selectively enhances the relaxation of short-wavelength exchange spin waves, indicating strong coupling between the exchange spin waves and spin currents at the interface through efficient spin transfer. The parametric spin pumping, furthermore, allows direct access to nonlinear spin wave dynamics in combination with the inverse spin Hall effect, revealing unconventional bistability of the exchange spin waves.

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References in corpus (5)

• Direct electronic measurement of the spin Hall effect
• Detection and quantification of inverse spin Hall effect from spin pumping in permalloy/normal metal bilayers
• Spin pumping by parametrically excited exchange magnons
• Electrical detection of spin pumping due to the precessing magnetization of a single ferromagnet
• Scaling behavior of the spin pumping effect in ferromagnet/platinum bilayers

Cited by in corpus (13)

• Thickness and power dependence of the spin-pumping effect in Y3Fe5O12/Pt heterostructures measured by the inverse spin Hall effect
• A Universal Method for Separating Spin Pumping from Spin Rectification Voltage of Ferromagnetic Resonance
• Detection of the microwave spin pumping using the inverse spin Hall effect
• Frequency and power dependence of spin-current emission by spin pumping in a thin film YIG/Pt system
• Control of Propagating Spin Waves via Spin Transfer Torque in a Metallic Bilayer Waveguide
• Nonlocal detection of interlayer three-magnon coupling
• Insulating nanomagnets driven by spin torque
• YIG thickness and frequency dependence of the spin-charge current conversion in YIG/Pt systems
• Orbital Pumping in Ferrimagnetic Insulators
• Field-dependence of magnon decay in yttrium iron garnet thin films
• Electrical spectroscopy of the spin-wave dispersion and bistability in gallium-doped yttrium iron garnet
• Spectral shape deformation in inverse spin Hall voltage in Y3Fe5O12|Pt bilayers at high microwave power levels
• Spin Pumping, Dissipation, and Direct and Alternating Inverse Spin Hall Effects in Magnetic Insulator-Normal Metal Bilayers