Two-dimensional ferroelectricity and antiferroelectricity for next-generation computing paradigms

Abstract

Ferroelectricity (FE) and antiferroelectricity (AFE) are correlated physical phenomena that, in the two-dimensional (2D) limit, exhibit unprecedented rich physics in terms of polarization creation, stabilization, and switching. By modulating the proximity effect of polarization, 2D FE and AFE can unexpectedly demonstrate reversible transformations. Moreover, these fundamental physics can spur innovation in memory devices toward emerging computation paradigms, including neuromorphic computing and sensing. In this perspective, we discuss the emergent physics of 2D FE and AFE and highlight phase transitions with different approaches between them. We also outline advanced device applications for next-generation computing and provide possible future research lines.