Design Space Exploration of Negative Capacitance Effect in MFIM Structure: A 3D Phase Field Approach

We present a 3D phase field model of the MFIM structure which helps us gain physical insights into the switching of polarization in the ferroelectric layer. The impact of various physical parameters is also studied. A decrease in the ferroelectric thickness results in better NC effect along with formation of a greater number of domains whereas changing the dielectric thickness causes no change. The decreasing grain angle causes the ferroelectric to switch from multi-domain states to single domain or poled states.