Barium titanate–cobalt ferrite nanocomposite film showing room-temperature magnetoelectric multiferroics was fabricated only via affordable liquid phase processes.
Multiferroic nanocomposites which possess both ferroelectric and ferromagnetic properties are attracting much attention because of their scientific interest and significant technological promise in novel multifunctional devices. In this work, multiferroic nanocomposites are targeted by anodization of Ti sheets to get TiO2 nanotubes followed by hydrothermal treatment to form BaTiO3 nanotube arrays, which were then used as a component to fabricate multiferroic nanocomposites through electrophoretic deposition (EPD) of CoFe2O4 nanoparticles into the tubular pores. Successful formation of BaTiO3 nanotube arrays and CoFe2O4 nanoparticles were achieved. The morphologies and crystal structure of BaTiO3 nanotube arrays were analyzed by a scanning electron microscope (SEM) and an X-ray diffractometer (XRD).
Simulation of EPD of CoFe2O4 nanoparticles into BaTiO3nanotube arrays was also performed in order to predict and improve the susceptibility of forming a desired composite layer.
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