The two-dimensional (2D) twisted bilayer materials with van der Waals coupling have
ignited great research interests, paving a new way to explore the emergent quantum …

The ability to design and control the chemical characteristics of covalent organic frameworks
(COFs) offers a new avenue for the development of functional materials, especially with …

The study of symmetry-protected topological phases of matter has been extended from
fermionic electron systems to various bosonic systems. Bosonic topological magnon phases …

The Hofstadter energy spectrum of twisted bilayer graphene (TBG) is found to have
recursive higher-order topological properties. We demonstrate that higher-order topological …

Recent experiments have demonstrated the possibility to design highly controllable
junctions on magic angle twisted bilayer graphene, enabling the test of its superconducting …

Moiré superlattices consist of parallel but staggered periodic lattices and have been
extensively explored due to their salient physical properties. However, there are limited …

In recent years, there has been a surge of interest in higher-order topological phases
(HOTPs) across various disciplines within the field of physics. These unique phases are …

Metastability of many-body quantum states is rare and still poorly understood. An
exceptional example is the low-temperature metallic state of the layered dichalcogenide 1T …

Long-range magnetic order appears on a side decorated Heisenberg spin nanoribbon at
nonzero temperature, although no spontaneous magnetization exists in a one-or two …

The electronic properties of junctions defined electrostatically on twisted bilayer graphene
can be addressed theoretically using lattice models. Recent works have introduced minimal …