Magnetic and dielectric properties of 0.1 Bi2/3Cu3Ti4O12 -0.9 Bi3LaTi3O12 nanocomposite prepared by semi-wet route

Abstract

A chemical formula of nanocomposite 0.1 Bi2/3Cu3Ti4O12 -0.9 Bi3LaTi3O12 (BCLT-19) was prepared by semiwet route using metal nitrate and solid TiO2. The phase formation of Bi2/3Cu3Ti4O12 (BCT) and Bi3LaTi3O12 (BLT) was confirmed by X-ray diffraction (XRD) study. Transmission electron microscope (TEM) analysis showed a nano particle of size 14 ± 5 nm on average for BCLT-19 composites. Scanning electron microscope (SEM) images exhibited a tubular, spherical and heterogeneous structure of grains. The root means square roughness, average roughness and maximum area peak height were explained by atomic force microscopy (AFM). Study of magnetic properties was determined as weak antiferromagnetic to ferromagnetic and in nature. The high dielectric constant (ε' = 3147 at 100Hz to 500 K) of BCLT-19 may be due to the existence of space charge polarization. In this manuscript have studies on the novel composite materials of BCLT-19 micro-structural properties. This is useful for future Random-access memory devices and dielectric materials,