Long‐Qing Chen

Epitaxially Integrated Electro‐Optic KNbO 3 Thin Films on Silicon

ABSTRACT The absence of a native electro‐optic effect in silicon remains a fundamental limitation for integrated photonics, motivating the integration of ferroelectric oxides as active materials. Here, we report the first epitaxial integration of KNbO 3 thin films on silicon, est...

Periodic polar vortices in BaTiO3/SrTiO3 superlattices monolithically grown on silicon

Abstract Polar textures in ferroelectric superlattices have been so far reported almost exclusively in PbTiO 3 -based systems and predominantly on oxide substrates. Owing to their nanometer-scale dimensions and emergent functionalities, whirling topological polar textures would b...