Steep Slope Ferroelectric Field Effect Transistor

In this work, we present an analysis of the switching dynamics of ferroelectrics that provides a critical insight into the steep slope exhibited by Ferroelectric Field Effect Transistor (FeFET). We show that, steep slope is fundamentally related to two competing mechanisms-the polarization switching dynamics in the ferroelectric and the time delay of the compensating free-charge. Our analysis sheds light on a possible mechanism of the phenomenon of transient negative capacitance (NC) without the requirement of Landau-Khalatnikov (L-K) theory.