Orbital-driven Rashba effect in a binary honeycomb monolayer AgTe

Abstract

The Rashba effect is fundamental to the physics of two-dimensional electron systems and underlies a variety of spintronic phenomena. It has been proposed that the formation of Rashba-type spin splittings originates microscopically from the existence of orbital angular momentum (OAM) in the Bloch wave functions. Here, we present detailed experimental evidence for this OAM-based origin of the Rashba effect by angle-resolved photoemission (ARPES) and two-photon photoemission (2PPE) experiments for a monolayer AgTe on Ag(111). Using quantitative low-energy electron diffraction (LEED) analysis we determine the structural parameters and the stacking of the honeycomb overlayer with picometer precision. Based on an orbital-symmetry analysis in ARPES and supported by first-principles calculations, we unequivocally relate the presence and absence of Rashba-type spin splittings in different bands of AgTe to the existence of OAM.

References in corpus (35)

• Topological Insulators
• Quantum Spin Hall Insulator State in HgTe Quantum Wells
• Weyl and Dirac Semimetals in Three Dimensional Solids
• Wannier90: A Tool for Obtaining Maximally-Localised Wannier Functions
• Universal Intrinsic Spin-Hall Effect
• New Perspectives for Rashba Spin-Orbit Coupling
• Tunable Rashba spin-orbit interaction at oxide interfaces
• Giant Spin-splitting in the Bi/Ag(111) Surface Alloy
• Strong spin-orbit splitting on Bi surfaces
• Highly efficient and tuneable spin-to-charge conversion through Rashba coupling at oxide interfaces
• Large tuneable Rashba spin splitting of a two-dimensional electron gas in Bi2Se3
• Graphene for spintronics: giant Rashba splitting due to hybridization with Au
• Giant Rashba Splitting in CH3NH3PbBr3 Organic-Inorganic Perovskite
• Orbital-Angular-Momentum Based Origin of Rashba-Type Surface Band Splitting
• Ideal two-dimensional electron systems with a giant Rashba-type spin splitting in real materials: surfaces of bismuth tellurohalides
• Giant ambipolar Rashba effect in a semiconductor: BiTeI
• Maximal Rashba-like spin splitting via kinetic energy-driven inversion symmetry breaking
• Chiral orbital-angular-momentum in the surface states of Bi2Se3
• Higher-order contributions to the Rashba-Bychkov effect with application to Bi/Ag(111) surface alloy
• Surface orbitronics: new twists from orbital Rashba physics
• In-Plane Orbital Texture Switch at the Dirac Point in the Topological Insulator Bi2Se3
• Spin polarization of the L-gap surface states on Au(111)
• Rashba type spin-orbit splitting of quantum well states in ultrathin Pb films
• Detecting Chiral Orbital Angular Momentum by Circular Dichroism ARPES
• Local Berry curvature signatures in dichroic angle-resolved photoelectron spectroscopy
• Spin and Orbital Angular Momentum Structures of Cu(111) and Au(111) Surface States
• Prediction of ferroelectricity-driven Berry curvature enabling charge- and spin-controllable photocurrent in tin telluride monolayers
• Hierarchical spin-orbital polarisation of a giant Rashba system
• Flat AgTe Honeycomb Monolayer with Topologically Nontrivial States
• Microscopic mechanism for asymmetric charge distribution in Rashba-type surface states and the origin of the the energy splitting scale
• Strong Linear Dichroism in Spin-Polarized Photoemission from Spin-Orbit-Coupled Surface States
• Spin structure of K valleys in single-layer WS${}_2$ on Au(111)
• Orbital Fingerprint of Topological Fermi Arcs in a Weyl Semimetal
• Microscopic origin of the relativistic splitting of surface states
• Giant Rashba-type spin splitting through spin-dependent interatomic-hopping

Cited by in corpus (21)

• Orbitronics: Orbital Currents in Solids
• Observation of the Orbital Rashba-Edelstein Magnetoresistance
• Orbital Rashba effect in surface oxidized Cu film
• Orbital Hall effect in bilayer transition metal dichalcogenides: From the intra-atomic approximation to the Bloch states orbital magnetic moment approach
• In-situ exfoliation method of large-area 2D materials
• Momentum-space signatures of Berry flux monopoles in a Weyl semimetal
• Design and realization of topological Dirac fermions on a triangular lattice
• Colossal orbital-Edelstein effect in non-centrosymmetric superconductors
• Orbital magnetoelectric effect in zigzag nanoribbons of p-band systems
• Role of Disorder in the Intrinsic Orbital Hall Effect
• Spectroscopic Signatures of Gate-Controlled Superconducting Phases
• CuTe chains on Cu(111) by deposition of 1/3 ML Te: atomic and electronic structure
• The Huygens Principle of Angle-Resolved Photoemission
• Quantum correction to the orbital Hall effect
• Real-space Obstruction in Quantum Spin Hall Insulators
• Evidence for large Rashba splitting in PtPb4 from Angle-Resolved Photoemission Spectroscopy
• Giant orbital Hall effect due to the bulk states of 3D topological insulators
• Tellurization of Pd(111): absence of PdTe${}_2$ but formation of a TePd${}_2$ surface alloy
• Nonlinear spin and orbital Rashba-Edelstein effects induced by a femtosecond laser pulse: Simulations for Au(001)
• Growth and crystallographic structure of TiTe${}_2$ on Au(111): From sub-monolayer structures to single- and multi-layer films
• Epitaxial fabrication of AgTe monolayer on Ag(111) and the sequential growth of Te film