Dielectric and tunable ferroelectric properties in BiFeO3–BiCoO3–BaTiO3 ternary compound

0.78BiTi0.1Fe0.8Mg0.1O3-0.22CaTiO3 Nanoscale-Thick Thin Films for Doping-Enhanced Electric Applications

“…Figure d shows that the P r values of x = 0.00 and x = 0.05 are 11.16 and 69.22 μC/cm 2 , which are close to the values of P–E hysteresis loops, thereby demonstrating the intrinsic ferroelectricity of BTFM-CTO-NBT thin films. This study shows an enhanced P max value and a moderate coercive field compared to that reported by others, as shown in Figure c. ,,,− …”

Unveiling the impact of Ni2+/Y3+ co-substitution on the structural, dielectric, and impedance properties of multiferroic spinel ferrite for hydroelectric cell application

“…This dispersion in the value of ε ′ was elaborated on the basis of the Maxwell–Wagner Model of spontaneous polarization. 37 According to this model, every dielectric material can be divided into 2 layers. The first layer consists of grains, which are more conducting due to presence of interactions between Fe 2+ ↔ Fe 3+ , while the second layer consists only of grain boundaries, which are poorly conducting.…”

Variable Dielectric and Ferroelectric Properties in Size-Controlled Cobalt Ferrite

“…where t, λ, ε, and β denote the size of nanoparticles, wavelength, and full width at half maxima, respectively. The constant k takes value of 0.9 [6,[10][11][12]. The crystallite size is observed to increase from 10 nm for CFNP-D to 80 nm for CFNP-A as temperature is increased from 50 to 110 °C.…”

“…On the contrary, permittivity tends to decrease on increasing the frequency since the charges are incapable of following the oscillations. It can also be observed that CFNP-A has higher dielectric constant as compared to CFNP-D because of larger crystallite size and improved crystallinity [10,11].…”

“…The magnitude of permittivity increases from 1100 in CFNP-D to 1500 in CFNP-A because of increased density in CFNPs. In addition, as the charge suffers thermal activation, increased hopping also contributes to enhanced dielectric permittivity [10,11,13,14].…”