The quantum Hall (QH) effect, quantized Hall resistance combined with zero longitudinal
resistance, is the characteristic experimental fingerprint of Chern insulators—topologically …

Topological materials have become the focus of intense research in recent years, since they
exhibit fundamentally new physical phenomena with potential applications for novel devices …

A quantum spin Hall (QSH) insulator is a novel two-dimensional quantum state of matter that
features quantized Hall conductance in the absence of a magnetic field, resulting from …

The first-principles band theory paradigm has been a key player not only in the process of
discovering new classes of topologically interesting materials, but also for identifying salient …

These lecture notes provide an introduction to some of the main concepts of topological
insulators, a branch of solid state physics that is developing at a fast pace. They are based …

Abstract Two-dimensional (2D) topological materials, including quantum spin/anomalous
Hall insulators, have attracted intense research efforts owing to their promise for applications …

Quantum spin Hall (QSH) effect materials feature edge states that are topologically protected
from backscattering. However, the small band gap in materials that have been identified as …

The quantum anomalous Hall effect is defined as a quantized Hall effect realized in a system
without an external magnetic field. The quantum anomalous Hall effect is a novel …

Topological phases with insulating bulk and gapless surface or edge modes have attracted
intensive attention because of their fundamental physics implications and potential …

Based on the first-principles calculations, we recover the silent topological nature of Cd 3 As
2, a well known semiconductor with high carrier mobility. We find that it is a symmetry …