Designer spin-orbit superlattices: symmetry-protected Dirac cones and spin Berry curvature in two-dimensional van der Waals metamaterials
arXiv:2404.13590 · doi:10.1038/s42005-024-01801-8
Abstract
The emergence of strong relativistic spin-orbit effects in low-dimensional systems provides a rich opportunity for exploring unconventional states of matter. Here, we present a route to realise tunable relativistic band structures based on the lateral patterning of proximity-induced spin-orbit coupling. The concept is illustrated on a patterned graphene-transition metal dichalcogenide heterostructure, where the spatially periodic spin-orbit coupling induces a rich mini-band structure featuring massless and massive Dirac bands carrying large spin Berry curvature. The envisaged systems support robust and gate-tunable spin Hall responses driven by the quantum geometry of mini-bands, which can be tailored through metasurface fabrication methods and twisting effects. These findings open pathways to two-dimensional quantum material design and low-power spintronic applications.
15 pages, 9 figures (includes supplementary information). This version of the article has been accepted for publication, after peer review but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is freely available online at the publisher's website (see DOI below)
References in corpus (59)
- Topological insulators and superconductors
- Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
- Topological Order and the Quantum Spin Hall Effect
- Berry Phase Effects on Electronic Properties
- Skyrmion Lattice in a Chiral Magnet
- Anomalous Hall effect
- Spin Transfer Torque Generated by the Topological Insulator Bi_2Se_3
- Local strain engineering in atomically thin MoS2
- Hall Effect of Light
- Emergent Phenomena Induced by Spin-Orbit Coupling at Surfaces and Interfaces
- Colloquium: The transport properties of graphene: An introduction
- Realization of Quantum Spin Hall State in Monolayer 1T'-WTe2
- Observation of the Quantum Spin Hall Effect up to 100 Kelvin in a Monolayer Crystal
- Control of spin-orbit torques through crystal symmetry in WTe2/ferromagnet bilayers
- Anisotropic behaviors of massless Dirac fermions in graphene under periodic potential
- Quantum Anomalous Hall Effect in Graphene from Rashba and Exchange Effects
- Geometrodynamics of Spinning Light
- Van der Waals heterostructures for spintronics and opto-spintronics
- An Exact SU(2) Symmetry and Persistent Spin Helix in a Spin-Orbit Coupled System
- Emergence of the persistent spin helix in semiconductor quantum wells
- Highly efficient and tuneable spin-to-charge conversion through Rashba coupling at oxide interfaces
- Colloquium: Quantum anomalous Hall effect
- Fermi level dependent charge-to-spin current conversion by Dirac surface state of topological insulators
- Spin-pumping into surface states of topological insulator α-Sn, spin to charge conversion at room temperature
- Angular Momenta and Spin-Orbit Interaction of Nonparaxial Light in Free Space
- The Insulating State of Matter: A Geometrical Theory
- Band Structure Engineering of 2D Materials using Patterned Dielectric Superlattices
- Magnetic texture based magnonics
- Model spin-orbit coupling Hamiltonians for graphene systems
- Persistent Spin Textures in Semiconductor Nanostructures
- Intrinsic spin-orbit coupling gap and the evidence of a topological state in graphene
- Twist-angle dependence of the proximity spin-orbit coupling in graphene on transition-metal dichalcogenides
- Spin Hall effect and Berry phase of spinning particles
- Optimal charge-to-spin conversion in graphene on transition metal dichalcogenides
- Induced spin-orbit coupling in twisted graphene-TMDC heterobilayers: twistronics meets spintronics
- Anisotropic band flattening in graphene with 1D superlattices
- Chirality-Induced Electrical Generation of Magnetism in Nonmagnetic Elemental Tellurium
- The different shapes of spin textures as a journey through Brillouin zone chiral and polar symmetries
- Canted Spin Texture and Quantum Spin Hall Effect in WTe2
- Rashba-like spin splitting along three momentum directions in trigonal layered PtBi2
- Covariant conservation laws and the spin Hall effect in Dirac-Rashba systems
- Spin-orbit coupling and semiclassical electron dynamics in noncentrosymmetric metals
- Scattering theory of spin-orbit active adatoms on graphene
- Charge-to-spin conversion in twisted graphene/WSe heterostructures
- Anomalous Hall effect in 2D Dirac materials
- Determining spin-orbit coupling in graphene by quasiparticle interference imaging
- Ballistic transport spectroscopy of spin-orbit-coupled bands in monolayer graphene on WSe
- Tuning electrical and optical anisotropy of a monolayer black phosphorus magnetic superlattice
- Skew-scattering-induced giant antidamping spin-orbit torques: Collinear and out-of-plane Edelstein effects at two-dimensional material/ferromagnet interfaces
- Origami-based spintronics in graphene
- Experimental observation of spin-split energy dispersion in high-mobility single-layer graphene/WSe2 heterostructures
- Dirac-Weyl electrons in a periodic spin-orbit potential
- Spin-dependent transmission in waveguides with periodically modulated strength of the spin-orbit interaction
- Spin Hall Effect: Symmetry Breaking, Twisting, and Giant Disorder Renormalization
- Spintronics in 2D graphene-based van der Waals heterostructures
- Two-dimensional Dirac fermions in a mass superlattice
- Rashba-splitting of the Dirac points and the symmetry breaking in the strained artificial graphene
- Half-metal phases in a quantum wire with modulated spin-orbit interaction
- Band Structure and Topological Properties of Graphene in a Superlattice Spin Exchange Field