Topological insulators and topological semimetals are both new classes of quantum
materials, which are characterized by surface states induced by the topology of the bulk …

Topology, a mathematical concept, has recently become a popular and truly
transdisciplinary topic encompassing condensed matter physics, solid state chemistry, and …

Over the past decade, topological materials—in which the topology of electron bands in the
bulk material leads to robust, unconventional surface states and electromagnetism—have …

The search for large-gap quantum spin Hall (QSH) insulators and effective approaches to
tune QSH states is important for both fundamental and practical interests. Based on first …

Spatial symmetries in crystals may be distinguished by whether they preserve the spatial
origin. Here we study spatial symmetries that translate the origin by a fraction of the lattice …

The family of two-dimensional transition metal carbides, so called MXenes, has recently
found new members with ordered double transition metals M 2′ M ″C 2, where M′ and M …

Quantum spin Hall (QSH) insulators, a new class of quantum matter, can support
topologically protected helical edge modes inside a bulk insulating gap, which can lead to …

MXenes are a large family of two-dimensional (2D) early transition metal carbides that have
shown great potential for a host of applications ranging from electrodes in supercapacitors …

Realization of high thermoelectric performance in n-type semiconductors is of imperative
need on account of the dearth of efficient n-type thermoelectric materials compared to the p …

A quantum spin Hall (QSH) insulator hosts topological states at the one-dimensional (1D)
edge, along which backscattering by nonmagnetic impurities is strictly prohibited. Its 3D …