Two-dimensional higher-order topological insulator tight-binding

Download scientific diagram | Two-dimensional higher-order topological insulator tight-binding model. a Bulk band-structure and spin Hall conductivity (σ z xy ) as a function of the Fermi energy. b Eigenvalues for a square flake geometry (open boundary conditions) with 32 × 32 sites. The red circles represent the degenerate corner states, with the inset showing a narrow energy window to emphasize their degeneracy. c Corner states realspace projection. The model parameters of equation (1) are M = 2t = 2ξ = 1 and Δ = 0.25. d Spin Hall conductivity as a function of the model parameters (0 ≤ t ≤ 2), (0 ≤ Δ ≤ 1) and (0 < M ≤ 10). e, f, g Spin Hall conductivity for fixed values of Δ = 0, 0.25, and 0.75, respectively. from publication: Discovery of higher-order topological insulators using the spin Hall conductivity as a topology signature | The discovery and realization of topological insulators, a phase of matter which hosts metallic boundary states when the d-dimension insulating bulk is confined to (d − 1)-dimensions, led to several potential applications. Recently, it was shown that protected topological | Topology, Conductivity and Discovery | ResearchGate, the professional network for scientists.

FIG. S1. 2D tight binding model: TI × HOTI. Comparison between the TI

PDF) Discovery of Higher-Order Topological Insulators using the Spin Hall Conductivity as a Topology Signature

PPT - Phase structure of topological insulators by lattice strong-coupling expansion PowerPoint Presentation - ID:2377847

σ tot xy and σ tot yx are plotted in the first and the second column

Quantum superposition demonstrated higher-order topological bound states in the continuum

Topological Insulators - ppt video online download

Adalberto FAZZIO, DIRECTOR, Professor, Centro Nacional de Pesquisa em Energia e Materiais, Campinas, CNPEM, Brazilian Nanotechnology National Laboratory

Frank CERASOLI, Doctor of Philosophy, University of North Texas, Texas, UNT, Department of Physics

Symmetry, Free Full-Text

Ideal two-dimensional quantum spin Hall insulators MgA 2 Te 4 (A = Ga, In) with Rashba spin splitting and tunable properties - Physical Chemistry Chemical Physics (RSC Publishing) DOI:10.1039/D3CP04898E

Marco BUONGIORNO NARDELLI, Professor, PhD, University of North Texas, Texas, UNT, Department of Physics and Division of Composition Studies

Experimental results for Case I. The number of points sampled on the

Discovery of higher-order topological insulators using the spin Hall conductivity as a topology signature - UNT Digital Library

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