This paper presents our findings on the recursive band gap engineering of chiral fermions in
bilayer graphene doubly aligned with hBN. Using two interfering moiré potentials, we …

Fractional quantum anomalous hall effect (FQAHE), a transport effect with fractionally
quantized Hall plateau emerging under zero magnetic field, provides a radically new …

Theoretical and experimental studies have verified the existence of “magic angles” in twisted
bilayer graphene, where the rotation angle between layers gives rise to flat bands and …

Floquet engineering of topological phase transitions driven by a high-frequency time-
periodic field is a promising approach to realizing new topological phases of matter distinct …

By virtue of being atomically thin, the electronic properties of heterostructures built from two-
dimensional materials are strongly influenced by atomic relaxation. The atomic layers …

Topologically protected corner states serve as a key indicator for two-dimensional higher-
order topological insulators, yet they have not been experimentally identified in realistic …

We report the exact closed-form solutions for higher-order topological states as well as
explicit energy-spectrum relationships in two-dimensional (2D) non-Hermitian multiorbital …

We numerically study orders of planer type (xy, x 2− y 2) quadrupoles on a triangular lattice
with nearest-neighbor isotropic J and anisotropic K interactions. This type of quadrupole …

We predicted a two-dimensional Sn 9 C 15 monolayer with regular ripple using first-
principles methods by utilizing the VASP code based on density functional theory (DFT). The …

We study the electronic band structure and optical response of a hybrid model, a $\alpha-
\mathcal {T} _3 $ model featuring a $\sqrt {3}\times\sqrt {3} $ Kekul\'e pattern modulation …