The discovery of 2D layered MoSi2N4 and WSi2N4 without knowing their 3D parents by
chemical vapor deposition in 2020 has stimulated extensive studies of 2D MA2Z4 system …

Quantum anomalous valley Hall effect (QAVHE), which combines both the features of QAHE
and AVHE, is both fundamentally intriguing and practically appealing, but is experimentally …

Strain is an effective method to tune the electronic properties of two-dimensional (2D)
materials and can induce novel phase transition. Recently, the 2D MA 2 Z 4 family of …

Valley-related multiple topological phase transitions have attracted significant attention
because they provide significant opportunities for fundamental research and practical …

The realization of multiferroic materials offers the possibility of multifunctional electronic
device design. However, the coupling between the multiferroicity and piezoelectricity in …

Electronic correlation combined with spin–orbit coupling (SOC) may have a significant
impact on the physical properties of two-dimensional (2D) transition metal magnetic …

Ferrovalley and topology are two basic concepts in both fundamental research fields and
emerging device applications. So far, reports are extremely scarce regarding the coupling of …

Two-dimensional (2D) materials and their van der Waals (vdW) heterostructures provide
powerful platforms for exploring fascinating physical phenomena and implementing …

Topology and ferrovalley (FV) are two essential concepts in emerging device applications
and the fundamental research field. To date, relevant reports are extremely rare about the …

One of the key problems in valleytronics is to realize valley polarization. Ferrovalley
semiconductors and half-valley metals (HVM) have been proposed, which possess intrinsic …