Published December 14, 2018 | Version v3
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The influence of lattice termination on the edge states of the quantum spin Hall insulator monolayer 1T'-WTe_2

Authors/Creators

  • 1. Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 4056, 2600 GA Delft, Netherlands
  • 2. Institute for Theoretical Solid State Physics, IFW Dresden, Helmholtzstr. 20, 01069 Dresden, Germany
  • 3. QuTech and Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 4056, 2600 GA Delft, Netherlands

Description

We study the influence of sample termination on the electronic properties of the novel quantum spin Hall insulator monolayer 1T'-WTe2. For this purpose, we construct an accurate, minimal 4-orbital tight-binding model with spin-orbit coupling by employing a combination of density-functional theory calculations, symmetry considerations, and fitting to experimental data. Based on this model, we compute energy bands and 2-terminal conductance spectra for various ribbon geometries with different terminations, with and without magnetic field.

The provided repository contains all code and data to reproduce the results of this study.

Files

QSHI_WTe2_files.zip

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Additional details

Related works

Is referenced by
arXiv:1812.05693 (arXiv)
10.1103/PhysRevMaterials.3.054206 (DOI)

Funding

European Commission
STATOPINS - Theory of statistical topological insulators 638760