Direct Evidence for the Dirac-Cone Topological Surface States in Ternary Chalcogenide TlBiSe2

Abstract

We have performed high-resolution angle-resolved photoemission spectroscopy on TlBiSe2, which is a member of the ternary chalcogenides theoretically proposed as candidates for a new class of three-dimensional topological insulators. By measuring the energy band dispersions over the entire surface Brillouin zone, we found a direct evidence for a non-trivial surface metallic state showing a X-shaped energy dispersion within the bulk band gap. The present result unambiguously establishes that TlBiSe2 is a strong topological insulator with a single Dirac cone at the Brillouin-zone center. The observed bulk band gap of 0.4 eV is the largest among known topological insulators, making TlBiSe2 the most promising material for studying room-temperature topological phenomena.

4 pages, 4 figures

References in corpus (20)

• Two-Dimensional Gas of Massless Dirac Fermions in Graphene
• Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
• $Z_2$ Topological Order and the Quantum Spin Hall Effect
• Quantum Spin Hall Insulator State in HgTe Quantum Wells
• Superconducting proximity effect and Majorana fermions at the surface of a topological insulator
• Topological Insulators with Inversion Symmetry
• Discovery (theoretical prediction and experimental observation) of a large-gap topological-insulator class with spin-polarized single-Dirac-cone on the surface
• A topological Dirac insulator in a quantum spin Hall phase : Experimental observation of first strong topological insulator
• First observation of Spin-Momentum Helical Locking in Bi2Se3 and Bi2Te3, demonstration of Topological-Order at 300K and a realization of topological-transport-regime
• First direct observation of Spin-textures in Topological Insulators : Spin-resolved ARPES as a probe of topological quantum spin Hall effect and Berry's phase
• Surface States of the Topological Insulator Bi_{1-x}Sb_x
• Strong spin-orbit splitting on Bi surfaces
• p-type Bi2Se3 for topological insulator and low temperature thermoelectric applications
• Quantum interference in macroscopic crystals of non-metallic Bi${}_2$Se${}_3$
• Single-Dirac-Cone topological surface states in TlBiSe2 class of Topological Insulators
• Quantum oscillations in a topological insulator Bi_{1-x}Sb_{x}
• Direct mapping of the spin-filtered surface bands of a three-dimensional quantum spin Hall insulator
• Fermi Surface and Anisotropic Spin-Orbit Coupling of Sb(111) studied by Angle-Resolved Photoemission Spectroscopy
• Theoretical Prediction of Topological Insulators in Thallium-based III-V-VI${}_2$ Ternary Chalcogenides
• Quasi-particle scattering and protected nature of topological states in a parent topological insulator Bi${}_2$Se${}_3$

Cited by in corpus (113)

• Topological insulators and superconductors
• Topological Insulator Materials
• Colloquium: Topological Band Theory
• Topological Superconductivity in CuxBi2Se3
• Topological Phase Transition and Texture Inversion in a Tunable Topological Insulator
• Optimizing the Bi_(2-x)Sb_(x)Te_(3-y)Se_(y) solid solutions to approach the intrinsic topological insulator regime
• Optical characterization of topological insulator surface states: Berry curvature-dependent response
• Topological quantization in units of the fine structure constant
• Superconductivity in the topological semimetal YPtBi
• Crystal Structure and Chemistry of Topological Insulators
• Unexpected mass acquisition of Dirac fermions at the quantum phase transition of a topological insulator
• Topological Aspect and Quantum Magnetoresistance of $\beta$-Ag${}_2$Te
• Half-Heusler Topological Insulators: A First-Principle Study with the Tran-Blaha Modified Becke-Johnson Density Functional
• Direct Measurement of the Out-of-Plane Spin Texture in the Dirac Cone Surface State of a Topological Insulator
• Topological insulators and thermoelectric materials
• Tunable Casimir repulsion with three dimensional topological insulators
• Persistence of Topological Order and Formation of Quantum Well States in Topological Insulators Bi2(Se,Te)3 under Ambient Conditions
• Large linear magnetoresistance in the Dirac semimetal TlBiSSe
• Quantum anomalous Hall effect with tunable Chern number in magnetic topological insulator film
• Three-Dimensional Topological Insulators in I-III-VI${}_2$ and II-IV-V${}_2$ Chalcopyrite Semiconductors
• Disordered Topological Insulators: A Non-Commutative Geometry Perspective
• Topological electronic structure and Weyl semimetal in the TlBiSe${}_2$ class of semiconductors
• Edge Channel Transport in InAs/GaSb Topological Insulating Phase
• Quasiparticle Effects in the Bulk and Surface-State Bands of Bi2Se3 and Bi2Te3 Topological Insulators
• Electrochemical synthesis and superconducting phase diagram of Cu_xBi2Se3
• A Novel Quasi-One-Dimensional Topological Insulator in Bismuth Iodide $\beta$-Bi${}_4$I${}_4$
• Topological insulators and fractional quantum Hall effect on the ruby lattice
• Fermi level tuning and a large activation gap achieved in the topological insulator Bi_{2}Te_{2}Se by Sn doping
• Widespread spin polarization effects in photoemission from topological insulators
• Experimental verification of PbBi${}_2$Te${}_4$ as a 3D topological insulator
• Gigantic negative magnetoresistance in a disordered topological insulator
• Prediction of weak topological insulators in layered semiconductors
• Topological Surface States with Persistent High Spin Polarization across Dirac Point in Bi${}_2$Te${}_2$Se and Bi${}_2$Se${}_2$Te
• Manipulation of Topological States and Bulk Band Gap Using Natural Heterostructures of a Topological Insulator
• Functionalized Bismuth Films: Giant Gap Quantum Spin Hall and Valley-Polarized Quantum Anomalous Hall States
• Spin-helical transport in normal and superconducting topological insulators
• Effect of finite temperature and uniaxial anisotropy on the Casimir effect with three-dimensional topological insulators
• Superconductivity in Tl_{0.6}Bi_{2}Te_{3} Derived from a Topological Insulator
• Direct Observation of the Topological Surface States in Lead-Based Ternary Telluride Pb(Bi1-xSbx)2Te4
• Topological insulators from the Perspective of first-principles calculations
• Conversion of a conventional superconductor into a topological superconductor by topological proximity effect
• Relationship between Fermi-Surface Warping and Out-of-Plane Spin Polarization in Topological Insulators: a View from Spin-Resolved ARPES
• Topological insulator in a Bi-Bi${}_2$Se${}_3$ infinitely adaptive superlattice phase
• Experimental determination of the topological phase diagram in Cerium monopnictides
• Observation of a Highly Spin Polarized Topological Surface State in GeBi${}_2$Te${}_4$
• Termination dependent topological surface states of the natural superlattice phase Bi${}_4$Se${}_3$
• Band Structure Engineering of Multinary Chalcogenide Topological Insulators
• First-principles calculation of topological invariants Z2 within the FP-LAPW formalism
• Magnetotransport and induced superconductivity in Bi based three-dimensional topological insulators
• Weak Topological Insulators in PbTe/SnTe Superlattices
• Half quantum spin Hall effect on the surface of weak topological insulators
• Strain tuning of topological band order in cubic semiconductors
• Spin-texture and magnetic anisotropy of Co adsorbed Bi${}_2$Se${}_3$ topological insulator surfaces
• Finite-size energy gap in weak and strong topological insulators
• Topological insulators in the quaternary chalcogenide compounds and ternary famatinite compounds
• Excitons and Optical Absorption on the Surface of a Strong Topological Insulator with a Magnetic Energy Gap
• Spin Polarization of Gapped Dirac Surface States Near the Topological Phase Transition in TlBi(S1-xSex)2
• Influence of tetragonal distortion on the topological electronic structure of the half-Heusler compound LaPtBi from first principles
• Phonon-induced renormalization of electron wave functions
• Density Functional Study of Ternary Topological Insulator Thin Films
• Unusual magnetic phases in the strong interaction limit of two-dimensional topological band insulators in transition metal oxides
• Rotational Isotropy Breaking as Proof for Spin-polarized Cooper Pairs in the Topological Superconductor CuxBi2Se3
• Ambipolar transport in bulk crystals of a topological insulator by gating with ionic liquid
• Strain driven onset of non-trivial topological insulating states in Zintl Sr${}_{2}X$ compounds ($X$=Pb, Sn)
• Topological Insulators and Quantum Spin Liquids
• Single Dirac-cone on the Cs-covered topological insulator surface Sb2Te3(0001)
• Non-fragile superconductivity with nodes in the superconducting topological insulator CuxBi2Se3: Zeeman orbital field and non-magnetic impurities
• Three-dimensional topological insulators: A review on host materials
• Spin-directed network model for the surface states of weak three-dimensional ${\mathbb{Z}}_2^{}$ topological insulators
• Electromagnetic spin polarization on the surface of topological insulator
• Doubled Quantum Spin Hall Effect with High-Spin Chern Number in $\alpha$-Antimonene and $\alpha$-Bismuthene
• Optical response of a topological-insulator--quantum-dot hybrid interacting with a probe electric field
• Spin-polarized Majorana Bound States inside a Vortex Core in Topological Superconductors
• Surface Shubnikov-de Hass oscillations and non-zero Berry phases of the topological hole conduction in Tl${}_{1-x}$Bi${}_{1+x}$Se${}_2$
• Electronic properties of SnTe-class topological crystalline insulator materials
• Dirac states with knobs on: interplay of external parameters and the surface electronic properties of 3D topological insulators
• Experimental verification of the surface termination in the topological insulator TlBiSe${}_2$ using core-level photoelectron spectroscopy and scanning tunneling microscopy
• Critical surface band gap of repulsive Casimir interaction between three dimensional topological insulators at finite temperature
• Converting normal insulators into topological insulators via tuning orbital levels
• Tunneling magnetoresistance devices based on topological insulators: Ferromagnet/insulator/topological-insulator junctions employing Bi${}_2$Se${}_3$
• Magnetoelectric effect in cylindrical topological insulators
• Realization of bulk insulating property and carrier manipulation in reversible spin current regime of the ideal topological insulator TlBiSe2
• Finite Size Effects of the Surface States in a Lattice Model of Topological Insulator
• Gapless Topological Superconductors - Model Hamiltonian and Realization
• Interaction of a hydrogenlike ion with a planar topological insulator
• Quasiclassical Treatment and Odd-parity/Triplet Correspondence in Topological Superconductors
• Spin- and angle-resolved photoemission on the topological Kondo Insulator candidate: SmB6
• Topologically Invariant Double Dirac States in Bismuth based Perovskites: Consequence of Ambivalent Charge States and Covalent Bonding
• Self-consistent study of Abelian and non-Abelian order in a two-dimensional topological superconductor
• Fabrication and characterization of the gapless half-Heusler YPtSb thin films
• Kondo screening by the surface modes of a strong topological insulator
• Metal-insulator transition and tunable Dirac-cone surface state in the topological insulator TlBi1-xSbxTe2 studied by angle-resolved photoemission
• Robust scheme for magnetotransport analysis in topological insulators
• Field-angle-dependent low-energy excitations around a vortex in the superconducting topological insulator CuxBi2Se3
• Spin-orbit coupling and weak antilocalization in thermoelectric material $\beta$-K${}_2$Bi${}_8$Se${}_{13}$
• Ab initio study of nontrivial topological phases in corundum structured $($M${}_2$O${}_3)/($Al${}_2$O${}_3{)}_5$ multilayers
• Topological Nontrivial Phase in Hexagonal Antiperovskites A3BiB (A=Ba,Sr; B=P,N)
• New polarization rotation and exact TEM wave solutions in topological insulators
• Interplay between spin-orbit coupling and crystal-field effect in topological insulators
• Nuclear magnetic relaxation rates of unconventional superconductivity in doped topological insulators
• Transmission in graphene-topological insulator heterostructures
• Modulation of Dirac electrons in epitaxial Bi2Se3 ultrathin films on van-der-Waals ferromagnet Cr2Si2Te6
• A first-principles investigation of band inversion in topologically nontrivial Na2AgX (X= As, Sb and Bi) full Heusler compounds
• Superconductivity in Bi based Bi2PdPt
• Exact solution of the Schrödinger equation for an hydrogen atom at the interface between the vacuum and a topologically insulating surface
• Quantum Anomalous Hall Effect in Three-dimensional Topological Insulator/Thin-film Ferromagnetic Metal Bilayer Structure
• Ultrafast electron dynamics at the Dirac node of the topological insulator Sb${}_2$Te${}_3$
• Anomalous Linear and Quadratic Nodeless Surface Dirac Cones in Three-Dimensional Dirac Semimetals
• Switching on surface conduction in a topological insulator
• Introduction to Topological Insulators
• Exact modes, hybridization and polarization rotation of electromagnetic fields propagating in topological insulating slab
• Surface states around a vortex in topological superconductors: Intersection of a surface and a vortex
• Super-resonant transport of topological surface states subjected to in-plane magnetic fields