Graphene is very popular because of its many fascinating properties, but its lack of an
electronic bandgap has stimulated the search for 2D materials with semiconducting …

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

A variety of monolayer crystals have been proposed to be two-dimensional topological
insulators exhibiting the quantum spin Hall effect (QSHE), possibly even at high …

Quantum spin Hall materials hold the promise of revolutionary devices with dissipationless
spin currents but have required cryogenic temperatures owing to small energy gaps. Here …

Topological insulators represent a new quantum state of matter which is characterized by
peculiar edge or surface states that show up due to a topological character of the bulk wave …

Antimonene, defined in sensu stricto as a single layer of antimony atoms, is recently the
focus of numerous theoretical works predicting a variety of interesting properties and is …

The hallmark of a topologically insulating state of matter in two dimensions protected by time-
reversal symmetry is the existence of chiral edge modes propagating along the perimeter of …

Searching for the two-dimensional (2D) topological insulators (TIs) with large bulk band
gaps is the key to achieve room-temperature quantum spin Hall effect (QSHE). Using first …

The introduction of the concept of topology into condensed matter physics has greatly
deepened our fundamental understanding of transport properties of electrons as well as all …

The layered allotropes of group 15 (P, As, Sb and Bi), also called two-dimensional (2D)
pnictogens, have emerged as one of the most promising families of post-graphene 2D …