Materials with negative longitudinal piezoelectric response have been a focus of recent
research. So far, reported examples are mostly three-dimensional bulk materials, either …

Inspired by the success of graphene, two-dimensional (2D) materials have been at the
forefront of advanced (opto-) nanoelectronics and energy-related fields owing to their exotic …

Ultrathin bismuth exhibits rich physics including strong spin-orbit coupling, ferroelectricity,
nontrivial topology, and light-induced structural dynamics. We use ab initio calculations to …

Well-established knowledge about inversion-symmetric Bi2Te x Se3–x topological
insulators characterizes the promising new-generation quantum device. Noticeably, the …

Semimetallic two-dimensional (2D) Dirac materials beyond graphene, especially 2D
materials with robust Dirac points against the spin–orbit coupling (SOC), are still highly …

Quadratic nodal point (QNP) in two dimensions has so far been reported only in
nonmagnetic materials and in the absence of spin-orbit coupling. Here, by first-principles …

Two-dimensional heterostructures, characterized by a twist angle between individual
sublayers, offer unique and tunable properties distinct from standalone layers. These …

Symmetry-protected edge states serve as direct evidence of nontrivial electronic topology in
atomically thin materials. Finding these states in experimentally realizable single-phase …

Two-dimensional materials composed of elements from the 15th group of the periodic table
remain largely unexplored. The primary challenge in advancing this research is the lack of …

Using a simple sequential deposition method, we grow black-phosphorus-like antimonene
(α-antimonene) on top of α-bismuthene nanoislands. Due to the lattice mismatch between …