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The paper reports synthesis, crystal structure, dielectric properties, P-E hysteresis loops, M-H hysteresis loops and magnetodielectric properties of Fe doped Ba 0.95 Sr 0.05 TiO 3 (0.05BST) single phase magnetodielectric compositions. The parent and doped 0.05BST compositions are synthesized via ceramic route of synthesis. The studies on crystal structure show that the parent composition (0.05BST) show a tetragonal crystal structure, while the substitution of Fe is observed to exhibit a cubic crystal structure with a tetragonal distortion. The investigations on dielectric properties show that the Fe doped 0.05BST show a diffused phase transition and T c approaches room temperature as the level of doping is increased. The studies on P-E and M-H hysteresis loops are carried out to confirm simultaneous presence of both the ferroelectric and ferromagnetic orders in a Fe doped 0.05BST. All the Fe doped compositions are found to exhibit a significant magnetodielectric coupling at room temperature.

Thin films of polycrystalline (Ba[Formula: see text]Sr[Formula: see text]TiO3 ([Formula: see text] = 0.2 and 0.3) with Perovskite structure were prepared by a dip and dry technique on a platinum-coated silicon substrate. The good quality thin films with uniform microstructure and thickness were successfully produced by dip-coating techniques annealed at 730[Formula: see text]C for 1 h. The resulting thin film shows a well-developed dense polycrystalline structure with more uniform grain size distribution. The BST thin films were characterized for their structural, Raman spectroscopy, morphological properties, and complex impedance properties. The dielectric constant-frequency curve showed the good dielectric constant and loss dielectric loss with low-frequency dispersion. The BST 0.3 thin film reveals that the dielectric constant and dielectric loss at a frequency of 1 kHz were 578 and 0.02, respectively. The obtained results on dielectric properties can be analyzed in terms of the Maxwell–Wagner model.

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