Figure 2
From: Frustration of Negative Capacitance in Al2O3/BaTiO3 Bilayer Structure
Theoretical studies on the NC effects in AO/BTO bilayer system.
(a) Landau free energy diagrams of BTO layer in 5 nm-AO/150 nm BTO heterostructure. (b) AO thickness dependency of the curvature of U-P diagram, the inset figure represent energy landscape where curvature is negative (left) and positive (right) (c) capacitance-voltage curves and (d) the spontaneous polarization–voltage curves of BTO layer in 5 nm-AO/150 nm BTO heterostructure.
