Omnidirectional spin-to-charge conversion in graphene/NbSe${}_2$ van der Waals heterostructures

Abstract

The conversion of spin currents polarized in different directions into charge currents is a keystone for novel spintronic devices. Van der Waals heterostructures with tailored symmetry are a very appealing platform for such a goal. Here, by performing nonlocal spin precession experiments, we demonstrate the spin-to-charge conversion (SCC) of spins oriented in all three directions (x, y, and z). By analyzing the magnitude and temperature dependence of the signal in different configurations, we argue that the different SCC components measured are likely due to spin-orbit proximity and broken symmetry at the twisted graphene/NbSe${}_2$ interface. Such efficient omnidirectional SCC opens the door to the use of new architectures in spintronic devices, from spin-orbit torques that can switch any magnetization to the magnetic state readout of magnetic elements pointing in any direction.

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Cited by in corpus (23)

• Charge-to-spin conversion in twisted graphene/WSe${}_2$ heterostructures
• Twist- and gate-tunable proximity spin-orbit coupling, spin relaxation anisotropy, and charge-to-spin conversion in heterostructures of graphene and transition-metal dichalcogenides
• Twist-angle tunable spin texture in WSe${}_2$/graphene van der Waals heterostructures
• Unconventional charge-to-spin conversions in graphene/MoTe2 van der Waals heterostructures
• Analogs of Rashba-Edelstein effect from density functional theory
• A group-theoretic approach to the origin of chirality-induced spin selectivity in non-magnetic molecular junctions
• Resolving spin currents and spin densities generated by charge-spin interconversion in systems with reduced crystal symmetry
• A seamless graphene spin valve based on proximity to van der Waals magnet Cr${}_2$Ge${}_2$Te${}_6$
• Twist-angle dependent proximity induced spin-orbit coupling in graphene/topological insulator heterostructures
• Spin and orbital Edelstein effect in a bilayer system with Rashba interaction
• Spin-orbit and exchange proximity couplings in graphene/1T-TaS${}_2$ heterostructure triggered by a charge density wave
• Control of charge-spin interconversion in van der Waals heterostructures with chiral charge density waves
• Gate-tunable spin Hall effect in an all-light-element heterostructure: graphene with copper oxide
• Charge to Spin Conversion in van der Waals Metal NbSe2
• Room temperature nonlocal detection of charge-spin interconversion in a topological insulator
• Gate-tunable spin Hall effect in trilayer graphene/group-IV monochalcogenide van der Waals heterostructures
• Out-of-plane spin-to-charge conversion at low temperatures in graphene/MoTe${}_2$ heterostructures
• Current-induced spin and orbital polarization in the ferroelectric Rashba semiconductor GeTe
• Ferroelectric switching control of spin current in graphene proximitized by In${}_2$Se${}_3$
• Topological phases, van Hove singularities, and spin texture in magic-angle twisted bilayer graphene in the presence of proximity-induced spin-orbit couplings
• Gate tunable spin-charge interconversion in a graphene/ReS${}_2$ heterostructure up to room temperature
• Gate-tunable charge-spin interconversion in graphene/heavy-metal heterostructures
• Radial Rashba spin-orbit fields in commensurate twisted transition-metal dichalcogenide bilayers