A great obstacle for the practical applications of the quantum anomalous Hall (QAH) effect is
the lack of suitable two-dimensional (2D) materials with a sizable nontrivial band gap, high …

The search for topological semimetals is mainly focused on heavy-element compounds by
following the footsteps of previous research on topological insulators, with less attention on …

For the few years, two-dimensional (2D) materials have aroused general focus. In order to
expand the properties and application range of 2D materials, two different layered materials …

The enchanting Dirac fermions in graphene stimulated us to seek other 2D Dirac materials,
and boron monolayers may be a good candidate. So far, a number of monolayer boron …

Two-dimensional (2D) semi-Dirac systems, such as 2D black phosphorus and arsenene,
can exhibit a rich topological phase transition between insulating, semi-Dirac, and band …

We study the topological properties of a Haldane model on a band deformed dice lattice,
which has three atoms per unit cell (call them A, B, and C) and the spectrum comprises of …

Topological nodal rings can be classified into three types according to the slopes in their
energy dispersion. Type-I nodal rings consist of type-I points, type-II rings consist of type-II …

Emergent fermions arising from the excess electrons of electrides provide a new perspective
for exploring semimetal states with unique Fermi surface geometries. In this study, a class of …

We study the topological properties and the topological phase transitions therein of a semi-
Dirac Haldane model on a honeycomb lattice in the presence of an extended range (third …

We show that a class of compounds with I 4/mcm crystalline symmetry hosts three-
dimensional semi-Dirac fermions. Unlike the known two-dimensional semi-Dirac points, the …