Evaluation of dielectric, energy storage and multiferroic properties of PrFeO₃-PbTiO₃ solid solutions

Abstract

This work promotes the room temperature energy storage properties of the multiferroics. In this approach, impacts of PrFeO3 doping on PT-based solid solutions (Pb[Formula: see text][Formula: see text]Pr[Formula: see text]Ti[Formula: see text][Formula: see text]Fe[Formula: see text]O3, [Formula: see text] = 0.21, 0.22, 0.23, 0.24, 0.25 and 0.26) have been explored. X-ray diffraction (XRD) patterns were used to estimate the crystallographic parameters, confirming the single phase tetragonal structure. The ferroelectric Curie temperature ([Formula: see text][Formula: see text]) is observed to drop from 410 K to below room temperature as the Pr concentration increases. The ferroelectric P-E loops were used to determine the energy storage values at room temperature. The sample [Formula: see text] = 0.24 achieved the maximum value of energy storage density of 362.25 mJ/cm3 with the efficiency of 40.5%. The ferroelectric P-E loops were used to determine the energy storage values at room temperature. The validity of magnetoelectric coupling in all samples was confirmed by magneto-dielectric studies and found that the sample [Formula: see text] = 0.24 shows the maximum response with the coupling coefficient ([Formula: see text]) = 15.54 g2/emu2.

Existence of Magneto-Resistance and Magneto-Dielectric Effect in Composite of Perovskite Pb0.79Nd0.21TiO3 and Sr -Based U-Type Hexaferrite (Sr1–3xNd2x)4Co2Fe36O60

“…[12][13][14] Several studies have been done in this approach where PbTiO 3 -ReFeO 3 have been analyzed for its magnetoelectric coupling within the single structure. [15][16][17] From the literature survey, we have found that PbTiO 3 shows 11.56%, 13.09% and 33.7% change in the dielectric constant when doped with PrFeO 3, SmFeO 3 and NdFeO 3 respectively. Therefore, Nd doped PT has been decided for the perovskite part.…”

“…Owing to its high Curie point, which also relies on composition, high electric resistivity, high magnetic permeability, low dielectric loss, superior chemical stability, and heat treatment of the samples, Sr-hexaferrites are among the most adaptable and materials that are appropriate for both low-frequency and high-frequency equipment are used. [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] It is worth mentioning that the Interface of particles or grain does play important role in these kinds of composites in nano particles based thin films. The required correlation of charge, spin, orbital, and lattice freedom degrees frequently puts demanding constraints on deposition circumstances, and interface engineering in complicated oxide thin films has inspired several novel room-temperature functions.…”