Attenuation characteristics of spin pumping signal due to travelling spin waves

Abstract

The authors have investigated the contribution of the surface spin waves to spin pumping. A Pt/NiFe bilayer has been used for measuring spin waves and spin pumping signals simultaneously. The theoretical framework of spin pumping resulting from ferromagnetic resonance has been extended to incorporate spin pumping due to spin waves. Equations for the effective area of spin pumping due to spin waves have been derived. The amplitude of the spin pumping signal resulting from travelling waves is shown to decrease more rapidly with precession frequency than that resulting from standing waves and show good agreement with the experimental data.

References in corpus (5)

• Electrical detection of spin pumping due to the precessing magnetization of a single ferromagnet
• Evolution of the spin Hall effect in Pt nanowires: Size and temperature effects
• Enhancement of the Gilbert damping constant due to spin pumping in noncollinear ferromagnet/nonmagnet/ferromagnet trilayer systems
• Electrical detection of spin pumping: dc voltage generated by ferromagnetic resonance at ferromagnet/nonmagnet contact
• Charge pumping and the colored thermal voltage noise in spin valves

Cited by in corpus (10)

• Determination of intrinsic spin Hall angle in Pt
• Spin wave nonreciprocity for logic device applications
• Observation of inverse spin Hall effect in bismuth selenide
• Role of spin mixing conductance in spin pumping: enhancement of spin pumping efficiency in Ta/Cu/Py structures
• Giant nonreciprocal emission of spin waves in Ta/Py bilayers
• Important role of magnetization precession angle measurement in inverse spin Hall effect induced by spin pumping
• Characterization of magnetostatic surface spin waves in magnetic thin films: evaluation for microelectronic applications
• Nonreciprocity engineering in magnetostatic spin waves
• Electrical detection of microwave assisted magnetization reversal by spin pumping
• Spin wave non-reciprocity and beating in permalloy by time-resolved magneto-optical Kerr effect