It has long been expected that the coexistence of ferroelectric and ferrovalley polarizations
in one magnetic semiconductor could offer the possibility to revolutionize electronic devices …

An altermagnet exhibits many novel physical phenomena because of its intrinsic
antiferromagnetic coupling and natural band spin splitting, which are expected to give rise to …

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

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 …

Recently synthesized MoSi2N4 is the first septuple-layer two-dimensional material, which
does not naturally occur as a layered crystal, and has been obtained with chemical vapour …

Manipulating the valley degree of freedom besides the charge and spin has attracted
increasing interest in fundamental sciences and emerging applications. In this study, the …

The layer-polarized anomalous Hall effect (LP-AHE), derived from the coupling between the
Berry curvature and the layer degree of freedom, is of importance for both fundamental …

Combining the nontrivial band topology with the intrinsic ferrovalley (FV), the valley-
nonequilibrium quantum anomalous Hall effect (VQAHE) attracts growing attention both for …

Abstract Investigating two-dimensional (2D) valleytronic materials opens a new chapter in
physics and facilitates the emergence of pioneering technologies. Nevertheless, this …

The control and manipulation of the valley and spin degrees of freedom have received great
interest in fundamental studies and advanced information technologies. Compared with …