Rashba spin-splitting control at the surface of the topological insulator Bi2Se3

Abstract

The electronic structure of Bi2Se3 is studied by angle-resolved photoemission and density functional theory. We show that the instability of the surface electronic properties, observed even in ultra-high-vacuum conditions, can be overcome via in-situ potassium deposition. In addition to accurately setting the carrier concentration, new Rashba-like spin-polarized states are induced, with a tunable, reversible, and highly stable spin splitting. Ab-initio slab calculations reveal that these Rashba state are derived from the 5QL quantum-well states. While the K-induced potential gradient enhances the spin splitting, this might be already present for pristine surfaces due to the symmetry breaking of the vacuum-solid interface.

A high-resolution version can be found at http://www.physics.ubc.ca/~quantmat/ARPES/PUBLICATIONS/Articles/BiSe_K.pdf

References in corpus (9)

• Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
• Superconducting proximity effect and Majorana fermions at the surface of a topological insulator
• Discovery (theoretical prediction and experimental observation) of a large-gap topological-insulator class with spin-polarized single-Dirac-cone on the surface
• Topological Field Theory of Time-Reversal Invariant Insulators
• Topological Surface States Protected From Backscattering by Chiral Spin Texture
• Coexistence of the topological state and a two-dimensional electron gas on the surface of Bi2Se3
• Large tuneable Rashba spin splitting of a two-dimensional electron gas in Bi2Se3
• Strong surface scattering in ultrahigh mobility Bi2Se3 topological insulator crystals
• Loss of nodal quasiparticle integrity in underdoped YBa2Cu3O6+x

Cited by in corpus (83)

• Surface conduction of topological Dirac electrons in bulk insulating Bi2Se3
• Emergent quantum confinement at topological insulator surfaces
• Measurement of intrinsic Dirac fermion cooling on the surface of a topological insulator Bi${}_2$Se${}_3$ using time- and angle-resolved photoemission spectroscopy
• Persistence of Topological Order and Formation of Quantum Well States in Topological Insulators Bi2(Se,Te)3 under Ambient Conditions
• Spin-Orbit induced phase-shift in Bi${}_2$Se${}_3$ Josephson junctions
• Coherent Topological Transport on the Surface of Bi2Se3
• Layer-by-layer entangled spin-orbital texture of the topological surface state in Bi2Se3
• Intrinsic conduction through topological surface states of insulating Bi${}_2$Te${}_3$ epitaxial thin films
• Photoelectron spin-polarization-control in the topological insulator Bi2Se3
• Creation of Helical Dirac Fermions by Interfacing Two Gapped Systems of Ordinary Fermions
• Intrinsic Electron-Phonon Resistivity in Bi2Se3 in the Topological Regime
• New interpretation of the origin of 2DEG states at the surface of layered topological insulators
• Magneto-optics of massive Dirac fermions in bulk Bi2Se3
• Ambipolar Surface State Thermoelectric Power of Topological Insulator Bi2Se3
• Anomalous dressing of Dirac fermions in the topological surface state of Bi2Se3, Bi2Te3, and CuxBi2Se3
• Switching of Charge-Current-Induced Spin Polarization in the Topological Insulator BiSbTeSe2
• Crossover of Ising- to Rashba-Type Superconductivity in Epitaxial Bi2Se3/Monolayer NbSe2 Heterostructures
• Efficient Charge-Spin Conversion and Magnetization Switching though Rashba Effect at Topological Insulator/Ag Interface
• Covariant conservation laws and the spin Hall effect in Dirac-Rashba systems
• Circular dichroism in angle-resolved photoemission spectroscopy of topological insulators
• Topological insulator quantum dot with tunable barriers
• Electronic properties of type-II Weyl semimetal WTe${}_2$. A review perspective
• Formation of Ideal Rashba States on Layered Semiconductor Surfaces Steered by Strain Engineering
• Hybridization-Induced Gapped and Gapless States on the Surfaces of Magnetic Topological Insulators
• Persistent Optical Gating of a Topological Insulator
• Observation of Distinct Bulk and Surface Chemical Environments in a Topological Insulator under Magnetic doping
• Intrinsic spin Hall effect in topological insulators: A first-principles study
• Engineering Topological Surface States and Giant Rashba Spin Splitting in BiTeI/Bi${}_2$Te${}_3$ Heterostructures
• Aging and reduced bulk conductance in thin films of the topological insulator Bi${}_2$Se${}_3$
• Unconventional spin texture in a non-centrosymmetric quantum spin Hall insulator
• Influence of Rashba spin-orbit coupling on the Kondo effect
• Helicity dependent photovoltaic effect in Bi2Se3 under normal incident light
• Tunable Giant Rashba-type Spin Splitting in PtSe${}_2$/MoSe${}_2$ Heterostructure
• Optical manipulation of Rashba-split 2-Dimensional Electron Gas
• Magnetic quantum phase transition in Cr-doped Bi2(SexTe1-x)3 driven by the Stark effect
• Band Structure of Topological Insulator BiSbTe1.25Se1.75
• Approaching a Minimal Topological Electronic Structure in Antiferromagnetic Topological Insulator MnBi2Te4 via Surface Modification
• Dirac states with knobs on: interplay of external parameters and the surface electronic properties of 3D topological insulators
• Dirac cone shift of a passivated topological Bi2Se3 interface state
• Trigger of the ubiquitous surface band bending in 3D topological insulators
• Evolution of the electronic structure of ultrathin MnBi2Te4 Films
• A theoretical perspective on the modification of the magnetocrystalline anisotropy at molecule-cobalt interfaces
• Enhanced quasiparticle dynamics of quantum well states: the giant Rashba system BiTeI and topological insulators
• Band bending at the surface of Bi${}_2$Se${}_3$ studied from first principles
• Large Bilinear Magnetoresistance from Rashba Spin-Splitting on the Surface of a Topological Insulator
• Giant plateau in the THz Faraday angle in gated Bi2Se3
• Reversible tuning of the surface state in a psuedo-binary Bi2(Te-Se)3 topological insulator
• New topological surface state in layered topological insulators: unoccupied Dirac cone
• Spatially varying electronic dephasing in three dimensional topological insulators
• Spin-Polarized Quantum Well States on Bi${}_{2-x}$Fe${}_x$Se${}_3$
• Topological insulator spin transistor
• Instability of the topological surface state in Bi${}_2$Se${}_3$ upon deposition of gold
• Simultaneous Magnetic and Charge Doping of Topological Insulators with Carbon
• Observation of Weyl and Dirac fermions at smooth topological Volkov-Pankratov heterojunctions
• Angle-resolved and core-level photoemission study of interfacing the topological insulator Bi1.5Sb0.5Te1.7Se1.3 with Ag, Nb and Fe
• Controlling and distinguishing electronic transport of topological and trivial surface states in a topological insulator
• Ambipolar surface state transport in non-metallic stoichiometric Bi${}_2$Se${}_3$ crystals
• Low coverage surface diffusion in complex energy landscapes: Analytical solution and application to intercalation in topological insulators
• Quantum oscillations of the topological surface states in low carrier concentration crystals of Bi${}_{2-x}$Sb${}_x$Te${}_{3-y}$Se${}_y$
• Ultrafast Evolution of Bulk, Surface and Surface Resonance States in Photoexcited Bi${}_2$Te${}_3$
• A robust weak topological insulator in a bismuth halide Bi4Br2I2
• Rashba Effect and Raman Spectra of Tl${}_2$O/PtS${}_2$ Heterostructure
• Effects of self-consistent extended Hubbard interactions and spin-orbit couplings on energy bands of semiconductors and topological insulators
• Observability of superconductivity in Sr-doped Bi2Se3 at the surface using scanning tunneling microscope
• Alkali-metal induced band structure deformation investigated by angle-resolved photoemission spectroscopy and first-principles calculations
• Insulating Half-Heusler TmPdSb with Unusual Band Order and Metallic Surface States
• Micro-metric electronic patterning of a topological band structure using a photon beam
• Discovery of topological metamaterials by symmetry relaxation and smooth topological indicators
• Resonant Tunneling Anisotropic Magnetoresistance Induced by Magnetic Proximity
• 2D compressibility of surface states on 3D topological insulators
• Magnetoelectric torque and edge currents caused by spin-orbit coupling
• Surface valence transition in SmS by alkali metal adsorption
• Interplay between Topological States and Rashba States as Manifested on Surface Steps at Room Temperature
• Enhanced Surface Superconductivity in Ba(Fe${}_{0.95}$Co${}_{0.05}$)${}_2$As${}_2$
• Topologically protected states in $\delta$-doped junctions with band inversion
• Scaling law for the Rashba-type spin splitting in quantum well films
• High and Magnetic-field-dependent Surface Carriers Mobility in 3D Topological Insulators without Bulk States
• Coexistence of Rashba and Dirac dispersions on the surface of centrosymmetric topological insulator decorated with transition metals
• Bulk Rashba spin splitting and Dirac surface state in $p$-type (Bi${}_{0.9}$Sb${}_{0.1}{)}_2$Se${}_3$ single crystal
• Non-local Chemical Potential Modulation in Topological Insulators Via Electric Field Driven Trapped Charge Migration
• Reversible Modification of Rashba States in Topological Insulators at Room Temperature by Edge Functionalization
• Terahertz electro-optic effect in Bi${}_2$Se${}_3$ crystals
• High repetition rate Time-Resolved VUV ARPES at 10.8 eV photon energy