Gate-tunable spin-charge conversion and a role of spin-orbit interaction in graphene

Abstract

The small spin-orbit interaction of carbon atoms in graphene promises a long spin diffusion length and potential to create a spin field-effect transistor. However, for this reason, graphene was largely overlooked as a possible spin-charge conversion material. We report electric gate tuning of the spin-charge conversion voltage signal in a single-layer graphene. Using spin pumping from yttrium iron garnet ferrimagnetic insulator and ionic liquid top gate we determined that the inverse spin Hall effect is the dominant spin-charge conversion mechanism in a single-layer graphene. From the gate dependence of the electromotive force we showed dominance of the intrinsic over Rashba spin-orbit interaction: a long-standing question in graphene research.

arXiv comment13 pages, 5 figures (to appear in Phys. Rev. Lett.)

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Cited by in corpus (40)

• Van der Waals heterostructures for spintronics and opto-spintronics
• Strongly anisotropic spin relaxation in graphene/transition metal dichalcogenide heterostructures at room temperature
• Giant Spin Lifetime Anisotropy in Graphene Induced by Proximity Effects
• Quantum Materials for Spin and Charge Conversion
• Tunable room-temperature spin galvanic and spin Hall effects in van der Waals heterostructures
• Observation of Inverse Edelstein Effect in Rashba-Split 2DEG between SrTiO3 and LaAlO3 at Room Temperature
• Electrical control of magnetism by electric field and current-induced torques
• Quantized photonic spin Hall effect in graphene
• Nonlinear spin current generation in noncentrosymmetric spin-orbit coupled systems
• Proximity coupling in superconductor-graphene heterostructures
• Nonlinear spin Hall effect in $\mathcal{P}\mathcal{T}$-symmetric collinear magnets
• Tunable inverse spin Hall effect in nanometer-thick platinum films by ionic gating
• Gate tunability of highly efficient spin-to-charge conversion by spin Hall effect in graphene proximitized with WSe${}_2$
• Tunable Anomalous Andreev Reflection and Triplet Pairings in Spin Orbit Coupled Graphene
• Spin Injection and Inverse Edelstein Effect in the Surface States of Topological Kondo Insulator SmB6
• Direct detection of induced magnetic moment and efficient spin-to-charge conversion in graphene/ferromagnetic structures
• Direct coupling between charge current and spin polarization by extrinsic mechanisms in graphene
• Effective Interactions in a Graphene Layer Induced by the Proximity to a Ferromagnet
• Spin supercurrent in two-dimensional superconductors with Rashba spin-orbit interaction
• Role of Berry curvature in the generation of spin currents in Rashba systems
• Superconducting monolayer deposited on substrate: effects of the spin-orbit coupling induced by proximity effects
• Controllable nonreciprocal optical response and handedness-switching in magnetized spin orbit coupled graphene
• Quantum Oscillations of Gilbert Damping in Ferromagnetic/Graphene Bilayer Systems
• Magnetic proximity effect at the interface of two-dimensional materials and magnetic oxide insulators
• Electrical control of spin mixing conductance in a Y${}_3$Fe${}_5$O${}_{12}$/Platinum bilayer
• Spin-to-Charge Conversion in 2D Electron Gas and Single-layer Graphene Devices
• Inplane spin orbit torque magnetization switching and its detection using the spin rectification effect at sub-GHz frequencies
• Effect of vertex corrections on the enhancement of Gilbert damping in spin pumping into a two-dimensional electron gas
• Spin-wave-induced lateral temperature gradient in a YIG thin film/GGG system excited in an ESR cavity
• Spin supercurrent in superconductor/ferromagnet van-der-Waals heterostructures
• Theory of inverse Rashba-Edelstein effect induced by spin pumping into a two-dimensional electron gas
• Breakdown of the Hebel-Slichter effect in superconducting graphene due to the emergence of Yu-Shiba-Rusinov states at magnetic resonant scatterers
• Theory of the inverse Rashba-Edelstein effect induced by thermal spin injection
• Spin Seebeck Effect in Graphene
• Magnetoelectric torque and edge currents caused by spin-orbit coupling
• Gate-Tunable Spin-to-Charge Conversion in Topological Insulator-Magnetic Insulator Heterostructures at Room Temperature
• Spin pumping into a spin glass material
• Spin Pumping into two-dimensional systems
• Entropy Driven Inductive Response of Topological Insulators
• Magnetoelectric torque and edge currents in spin-orbit coupled graphene nanoribbons