Moiré systems have emerged in recent years as a rich platform to study strong correlations.
Here, we will propose a simple, experimentally feasible setup based on periodically strained …

Spin waves represent the collective excitations of the magnetization field within a magnetic
material, providing dispersion curves that can be manipulated by material design and …

In this study, using symmetry analysis, we reveal that symmetry-enforced three-nodal
surfaces (NSs) and Dirac nodal-line (DNL) net phonons can coexist in two candidate space …

Based on first-principles calculations, we have investigated the structural stability, electronic
structures, and thermal properties of the monolayer XSi 2 N 4 (X= Ti, Mo, W) and their lateral …

When electrons moving in two dimensions (2D) are subjected to a strong uniform magnetic
field, they form flat bands called Landau levels (LLs). LLs can also arise from …

Recent density-functional theory (DFT) calculations on copper-doped lead apatite $\text {Pb}
_9\text {Cu}(\text {PO} _4) _6\text {O} $ indicated various interesting band structure …

Topologically protected flat surface bands make thin films of rhombohedral graphite an
appealing platform for searching for strongly correlated states of 2D electrons. In this work …

Flat-band systems are a promising platform for realizing exotic collective ground states with
spontaneously broken symmetry because the electron-electron interactions dominate over …

In topological semimetals, the bands can cross at points or lines with different dimensionality
and connectivity in momentum space. For graphene and other systems hosting zero …

In search of materials with three-dimensional flat band dispersions, using ab initio
computations we investigate how topological phases evolve as a function of hydrostatic …