Structural, Optical, Ferroelectric and Magnetic Properties of NiTiO₃ Ceramic Synthesized by Citrate Gel Method

Abstract

The NiTiO3 ceramic was synthesized in nanostructured form by citrate gel method. The phase structure, microstructure and magnetic properties of synthesized compounds were investigated by X-ray diffraction (XRD), scanning electron microscope and vibrating sample magnetometer. Williamson–Hall plot was used to calculate the crystallite size and microstrain of sample. The XRD analysis showed the formation of rhombohedral crystal structure of synthesized powders. The crystallite size is about 35[Formula: see text]nm and microstrain is [Formula: see text]. The optical band gap was estimated from UV-Visible spectrum with value of 2.43[Formula: see text]eV. The NiTiO3 samples showed coexistence of ferroelectric and antiferromagnetic properties at room temperature.

Structural, electrical and ferroelectric properties of NiTiO3 synthesized by citrate-gel method

“…The key advantage of this method is to keep the homogeneity of the starting material from solution to gel. Our group has successfully synthesized NiTiO 3 nanomaterials by the citrate method [20]. In this work, we presented the analysis of electrical properties of ilmenite NiTiO 3 which was synthesized by a simple low-cost citrate gel method…”

NiTiO3/MnFe2O4 ferrite composites: synthesis, optical, ferroelectric and magnetic properties

“…NiTiO 3 is an semiconductor with a bandgap value ranging from 2.2 eV-2.8 eV [4] and is antiferromagnetic with a Neel temperature about −251÷−252 • C [5]. Previous reports showed that NiTiO 3 exhibited ferroelectric characteristics at room temperatures [6][7][8]. Generally, magnetic properties of NiTiO 3 ceramic can be changed by metal transition dopants [9][10][11].…”