Spin-textures, Berry's phase and Quasiparticle Interference in Bi2Te3: A Topological Insulator with Warped Surface States

Abstract

The energy-momentum relationship of electrons on the surface of an ideal "Hydrogen-Atom" Topological Insulator forms a cone - a Dirac cone, which, when warped and distorted (no longer described by the Dirac equation), can lead to unusual phenomena such as enhanced electronic interference around defects (observed in STM) and a magnetically ordered broken symmetry surface with lost topological protection. A detailed spin-texture and hexagonal warping maps on Bi2Te3 are presented in this context as a Viewpoint on L.Fu, Phys. Rev. Lett. \textbf{103}, 266801 (2009).

Invited perspective article, Viewpoint on Topological Insulators in Phys. Rev. Lett. (2009)

References in corpus (8)

• 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
• A topological Dirac insulator in a quantum spin Hall phase : Experimental observation of first strong topological insulator
• Classification of topological insulators and superconductors in three spatial dimensions
• Topological Field Theory of Time-Reversal Invariant Insulators
• 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
• Topological Surface States Protected From Backscattering by Chiral Spin Texture

Cited by in corpus (21)

• Topological Insulators
• Colloquium: Topological Band Theory
• Three-Dimensional Topological Insulators
• A topological insulator surface under strong Coulomb, magnetic and disorder perturbations
• Topological Phase Transition and Texture Inversion in a Tunable Topological Insulator
• Observation of topological order in a Superconducting doped topological insulator (based on the Bi2Se3 class)
• Optical properties of Bi2Te2Se at ambient and high pressure
• Ternary Tetradymite Compounds as Topological Insulators
• Dirac Cones, Topological Edge States, and Nontrivial Flat Bands in Two-Dimensional Semiconductors with a Honeycomb Nanogeometry
• Anisotropic effect of warping on the lifetime broadening of topological surface states in angle-resolved photoemission from Bi${}_2$Te${}_3$
• Density Functional Study of Ternary Topological Insulator Thin Films
• Spin-orbital groundstates of Superconducting doped topological insulators (A Majorana Platform)
• Twisted Fermi surface of a thin-film Weyl semimetal
• Bi2Te_xSe_y series studied by resistivity and thermopower
• Discovery of several large families of Topological Insulator classes with backscattering-suppressed spin-polarized single-Dirac-cone on the surface
• Flat-lens focusing of electrons on the surface of a topological insulator
• Two-dimensional Josephson vortex lattice and anomalously slow decay of the Fraunhofer oscillations in a ballistic SNS junction with a warped Fermi surface
• Origin of Rashba-splitting in the quantized subbands at Bi2Se3 surface
• Aharonov-Bohm oscillations in the local density of topological surface states
• Unusual spin dynamics in topological insulators
• Bulk and surface electron scattering in disordered Bi${}_2$Te${}_3$ probed by quasiparticle interference