Ultralow-pressure-driven polarization switching in ferroelectric membranes.

ABSTRACT: Van der Waals integration of freestanding perovskite-oxide membranes with two-dimensional semiconductors has emerged as a promising strategy for developing high-performance electronics, such as field-effect transistors. In these innovative field-effect transistors, the oxide membranes have primarily functioned as dielectric layers, yet their great potential for structural tunability remains largely untapped. Free of epitaxial constraints by the substrate, these freestanding membranes exhibit remarkable structural tunability, providing a unique material system to achieve huge strain gradients and pronounced flexoelectric effects. Here, by harnessing the excellent structural tunability of PbTiO₃ membranes and modulating the underlying substrate's elasticity, we demonstrate the tip

SUBMITTER: Yang X 

PROVIDER: S-EPMC11519889 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature