Dielectric and Magneto-dielectric properties of GdFeO3 modified PbTiO3 nanofibrous mats obtained through electrospinning technique

This study intends to create and analyze electrospun nanofibrous mats of GdFeO3 doped PbTiO3 i.e Pb0.8Gd0.2Ti0.8Fe0.2O3 (GF-PT) using sol gel method. The polyvinylpyrrolidone PVP/GF-PT material was attempted to generate a highly viscous sol that is used to transform into nanofibers utilizing various parameters. The crystallographic parameters were estimated using X-ray diffraction (XRD) patterns, which supported single phase tetragonal structure. Also, Scherer equation was used to calculate the typical nanocrystallite size of the manufactured nanofibrous mats, and the result was 15.92 nm. The morphological investigations showed that a variety of factors, such as applied voltage, flow rate, and needle-collector distance, had a significant impact on the average diameter of nanofibrous mats. The nanofibers displayed ferromagnetic behavior and exhibited re-sidual magnetism of approximately 0.0257 emu/g. The created nanofibers exhibit significant magneto-electric (ME) coupling characteristics having the highest magneto-dielectric response (MDR) at 1.2 T of about-38.62 % and the calculated magneto-dielectric coefficient value is-275.05 emu2/g2.