Tight-binding theory of surface spin states on bismuth thin films

Abstract

The surface spin states for bismuth thin films were investigated using an $s{p}^3$ tight-binding model. The model explains the experimental observations using angle-resolved photoemission spectroscopy, including the Fermi surface, the band structure with Rashba spin splitting, and the quantum confinement in the energy band gap of the surface states. A large out-of-plane spin component also appears. The surface states penetrate inside the film to within approximately a few bilayers near the Brillouin-zone center, whereas they reach the center of the film near the Brillouin-zone boundary.

7 pages, 5 figures

References in corpus (5)

• Surface States of the Topological Insulator Bi_{1-x}Sb_x
• Strong spin-orbit splitting on Bi surfaces
• Quantum Spin Hall Effect and Enhanced Magnetic Response by Spin-Orbit Coupling
• Electronic Structures and Surface States of Topological Insulator Bi${}_{1-x}$Sb${}_x$
• One-Dimensional Edge States with Giant Spin Splitting in a Bismuth Thin Film

Cited by in corpus (14)

• Observation of a Nematic Quantum Hall Liquid on the Surface of Bismuth
• Topological edge and corner states in Bi fractals on InSb
• Topological surface states on Bi(111) based on empirical tight-binding calculations
• Light and microwave driven spin pumping across FeGaB-BiSb interface
• Superconductivity in the Bi/Ni bilayer
• Ferroelectric quantum Hall phase revealed by visualizing Landau level wavefunction interference
• Electronic properties of bismuth nanostructures
• Visualization of spin-polarized electronic states by imaging-type spin-resolved photoemission microscopy
• Localized Wannier function based tight-binding models for two-dimensional allotropes of bismuth
• Theory of spin and orbital charge conversion at the surface states of Bi_{1-x}Sb_x topological insulator
• Quantum Confinement and Heavy Surface States of Dirac Fermions in Bismuth (111) Films: an Analytical Approach
• Moiré superlattices of antimonene on a Bi(111) substrate with van Hove singularity and Rashba-type spin polarization
• Topological blocking at the Bi(111) surface due to surface relaxation
• Long-range permeation of wave function and superficial surface state due to strong quantum size effects in topological Bi/BiSb heterojunctions