Spin-dependent (inverse) spin Hall effect in Co${}_{60}$Fe${}_{20}$B${}_{20}$

Abstract

In ferromagnetic metals, the interconversion of spin and charge currents via the spin Hall effect and its inverse can depend on the angle between the ferromagnets magnetization and the spin current polarization direction. Here, such a spin-dependent (inverse) spin Hall effect is found in the ferromagnetic alloy Co${}_{60}$Fe${}_{20}$B${}_{20}$. In a nonlocal magnon transport experiment, Co${}_{60}$Fe${}_{20}$B${}_{20}$ is used to both excite and detect magnonic spin currents flowing in the ferrimagnetic insulator Y${}_3$Fe${}_5$O${}_{12}$. We find that the signal amplitude is significantly modulated by tuning the direction of the Co${}_{60}$Fe${}_{20}$B${}_{20}$ magnetization. We design a sample structure that completely prevents direct magnonic coupling between the ferromagnets. Thus, we can identify unambiguously an intrinsic electronic origin of the observed effect.

arXiv comment13 pages, 5 figures

References in corpus (15)

• Anomalous Hall effect
• Antiferromagnetic spintronics
• Spin Hall Magnetoresistance Induced by a Non-Equilibrium Proximity Effect
• Long distance transport of magnon spin information in a magnetic insulator at room temperature
• Electrically controlled long-distance spin transport through an antiferromagnetic insulator
• Finite-element theory of transport in ferromagnet-normal metal systems
• Thermoelectric generation based on spin Seebeck effects
• Self-induced inverse spin Hall effect in permalloy at room temperature
• Spin Injection and Detection via the Anomalous Spin Hall Effect in a Ferromagnetic Metal
• Ferroic collinear multilayer magnon spin valve
• Theory of spin loss at metallic interfaces
• Unambiguous separation of the inverse spin Hall and anomalous Nernst Effects within a ferromagnetic metal using the spin Seebeck effect
• Complex THz and DC inverse spin Hall effect in YIG/Cu${}_{1-x}$Ir${}_x$ bilayers across a wide concentration range
• Spin conductance of YIG thin films driven from thermal to subthermal magnons regime by large spin-orbit torque
• Spin transport across antiferromagnets induced by the spin Seebeck effect

Cited by in corpus (9)

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• Disorder dependent spin-orbit torques in L10 FePt single layer
• Differences in the magnon diffusion length for electrically and thermally driven magnon currents in Y${}_3$Fe${}_5$O${}_{12}$
• Magnon confinement in an all-on-chip YIG cavity resonator using hybrid YIG/Py magnon barriers
• Controllable Spin Current in van der Waals Ferromagnet Fe3GeTe2
• Enhancement of Spin-Charge Conversion Efficiency for Co${}_3$Sn${}_2$S${}_2$ across Transition from Paramagnetic to Ferromagnetic Phase
• Resonant Measurement of Non-Reorientable Spin-Orbit Torque from a Ferromagnetic Source Layer Accounting for Dynamic Spin Pumping
• Measuring the magnetic anisotropy of the spin Hall effect and spin relaxation length in nickel and permalloy via electrical spin injection