Following the first experimental realization of graphene, other ultrathin materials with
unprecedented electronic properties have been explored, with particular attention given to …

A single atomic slice of α-tin—stanene—has been predicted to host the quantum spin Hall
effect at room temperature, offering an ideal platform to study low-dimensional and …

Two-dimensional stanene is a promising candidate material for realizing a room-
temperature quantum spin Hall (QSH) effect. Monolayer stanene has recently been …

The recently discovered topological quantum materials (TQMs) have electronic structures
that can be characterized by certain topological invariants. In these novel materials, the …

The unique correspondence between mathematical operators and photonic elements in
wave optics enables quantitative analysis of light manipulation with individual optical …

Topological crystalline insulators are topological insulators whose surface states are
protected by the crystalline symmetry, instead of the time reversal symmetry. Similar to the …

Two-dimensional (2D) topological crystalline insulators (TCIs) were recently predicted in thin
films of the SnTe class of IV–VI semiconductors, which can host metallic edge states …

The tunability of topological surface states and controllable opening of the Dirac gap are of
fundamental and practical interest in the field of topological materials. In the newly …

The topological state transition has been widely studied based on the quantized topological
band invariant such as the Chern number for the system without intense randomness that …

The exploration of intriguing topological quantum physics in stanene has attracted
enormous interest but is challenged by lacking desirable material samples. The successful …