Fig. 3From: Ferroelectric, Dielectric, Ferromagnetic, and Magnetoelectric Properties of BNF-NZF Bilayer Nanofilms Prepared via Sol-Gel ProcessMicrostructure of the top layer of the composite films: a BNF layer. b NZF layer. The insets are the AFM images of both the BNF layer and NZF layerBack to article page