Topological semimetals (TSMs) are characterized by bulk band crossings in their electronic
structures, which are expected to give rise to gapless electronic excitations and topological …

Besides chiral edge states, the hallmark of quantum Hall insulators, antichiral edge states
can exhibit unidirectional transport behavior but in topological semimetals. Although such …

Superconductivity has been observed in bilayer graphene [1, 2]. The main factor that
determines the mechanism of the formation of this superconductivity is the “magic angle” of …

The discovery of massless Dirac electrons in graphene and topological Dirac-Weyl materials
has prompted a broad search for bosonic analogues of such Dirac particles. Recent …

One-dimensional Su-Schrieffer-Heeger (SSH) chains are one of the simplest topological
models and have been studied extensively. The two-dimensional (2 D) version has been …

Based on first-principles calculations, we predict that the superconductor MgB 2 with an AlB
2-type centrosymmetric lattice hosts the so-called phononic topological Weyl nodal lines …

Flat bands and nontrivial topological physics are two important topics of condensed matter
physics. With a unique stacking configuration analogous to the Su–Schrieffer–Heeger …

In recent years, scientists have conducted extensive research on Moiré materials and have
discovered some compelling properties. The Moiré superlattice allows superconductivity …

Electrons with large kinetic energy have a superconducting instability for infinitesimal
attractive interactions. Quenching the kinetic energy and creating a flat band renders an …

Topological semimetals, extending the topological classification from insulators to metals,
have greatly enriched our understanding of topological states in condensed matter. This is …