The physics of quantum materials is dictated by many-body interactions and mathematical
concepts such as symmetry and topology that have transformed our understanding of matter …

Phosphorene, an emerging two-dimensional material, has received considerable attention
due to its layer-controlled direct bandgap, high carrier mobility, negative Poisson's ratio and …

Quantum spin Hall materials hold the promise of revolutionary devices with dissipationless
spin currents but have required cryogenic temperatures owing to small energy gaps. Here …

We model the newly synthesized magic-angle-twisted bilayer graphene superconductor with
two px, y-like Wannier orbitals on the superstructure honeycomb lattice, where the hopping …

From the group-IIIA (borophene), to the group-IVA (silicene, germanene and stanine), as
well as the group-VA (phosphorene, arsenene, antimonene and bismuthene) and even the …

Topological phases with insulating bulk and gapless surface or edge modes have attracted
intensive attention because of their fundamental physics implications and potential …

We propose a universal practical approach to realize magnetic second-order topological
insulator (SOTI) materials, based on properly breaking the time reversal symmetry in …

Multiferroic materials have the potential to be applied in novel magnetoelectric devices, for
example, high-density non-volatile storage devices. During the last decades, research on …

Quantum spin Hall (QSH) effect is promising for achieving dissipationless transport devices
which can be achieved only at extremely low temperature presently. The research for new …

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 …