Jiawen Dai

Interfacial ferroelectricity at naturally-formed van der Waals interfaces

Sliding ferroelectrics emerge as compelling candidates for next-generation wafer-level non-volatile storage applications with low power consumption and high packing density. However, artificially stacked sliding ferroelectrics with homogeneous/heterogeneous interfaces rely on hig...

Breathing ferroelectricity, flat-bands and multiple chiral phonons in van der Waals breathing kagome Nb3Cl8

Van der Waals layered Nb3X8 (X=Cl, Br, I) are predicted to integrate multiple intriguing physical properties, notably multiferroicity and flat-bands that are highly promising for novel-principle memories and superconductors. However, direct experimental validations such as the pr...