Rietveld refined XRD pattern of LBFMO samples.
(a) Dielectric constant of LBFMO samples as a function of frequency (75 kHz–4 MHz) at 300 K, and (b) Variation in vs frequency at 300 K.
Alteration of log with log for LBFMO samples at 300 K in the frequency range of 75 kHz–4 MHz. Inset: enlarged view of the linear fit.
Temperature dependence of dielectric constant of LBFMO samples at different frequencies (500 kHz–1 MHz).
Thermal variation in for LBFMO samples at different frequencies (500 kHz–1 MHz).
FC magnetization data plotted as a function of temperature (5–320 K) for LBFMO samples. Inset: (a) hysterisis behavior of sample with . (b) Variation in coercivity with temperature. (c) Variation in remnant magnetization with temperature.
M-H hysteresis curve of LBFMO samples at 20 K.
Hysteresis curve of LBFMO samples at 100 K. Inset: enlarged view showing the .
FESEM micrographs of LBFMO samples taken on the scale of . Inset: show the respective histograms of grain sizes.
(a) Temperature variation in dielectric constant for sample in the absence and presence of a magnetic field . (b) Variation in in the absence and presence of magnetic field. (c) shows the percentage coupling at an applied frequency of 123 Hz. Inset: shows the enlarged part of dotted portions in [(a) and (b)].
Calculated lattice parameters and unit cell volume for samples.
Parameters calculated from dielectric data of samples.
Parameters calculated from M-H curves for samples.
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