Structural, infrared, magnetic and ferroelectric properties of Sr0·5Ba0·5Ti1-xFexO3 nanoceramics: Modifications via trivalent Fe ion doping

• Published in: Physica. B, Condensed matter Vol. 581; p. 411944
• Main Authors: Bhoyar, Dhananjay N., Somvanshi, Sandeep B., Kharat, Prashant B., Pandit, A.A., Jadhav, K.M.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15.03.2020; Elsevier BV
• Subjects: Diffraction; Doping; Fe doped Sr0·5Ba0·5TiO3; Ferroelectric materials; Ferroelectricity; Ferromagnetism; Fourier transforms; FT-IR; Functional groups; Hysteresis loops; Infrared spectroscopy; Magnetic properties; Magnetometers; Microscopy; Multiferroic materials; Multiferroics; Nanoceramics; Nanomaterials; Nanoparticles; Perovskite; Perovskites; Sol-gel processes; Stoichiometry; TEM; XRD; FT-IR; Fe doped Sr0·5Ba0·5TiO3; XRD; TEM; Nanoceramics; Multiferroics
• ISSN: 0921-4526; 1873-2135
• DOI: 10.1016/j.physb.2019.411944

The work reveals the structural, infrared and multiferroic (viz. magnetic, ferroelectric) properties of sol-gel auto burning incorporated Sr0·5Ba0·5Ti1-xFexO3 (0.00 ≤ x ≤ 0.25 in step of 0.05) perovskite structured nanoceramics. The XRD analysis demonstrates the phase change from cubic to tetragonal structure due to Fe doping. The functional groups of prepared samples were dictated by Fourier transform infrared (FT-IR) spectroscopy. The scanning and transmission electron microscopy were utilized for surface morphological studies. The compositional stoichiometry of the prepared samples was determined by energy dispersive spectrum (EDS) system. The P-E and vibrating sample magnetometer (VSM) techniques were utilized to portray the multiferroic properties of prepared samples. The ferromagnetic and ferroelectric investigation of prepared samples uncovers, the hysteresis loop is firmly impacted by Fe ion doping by production of oxygen vacancies. The doping of magnetic Fe3+ ions in host Sr0·5Ba0·5TiO3 nanoparticles modified and improved the structural, infrared and multiferroic properties enormously. •Successful preparation of Fe3+ doped Sr0·5Ba0·5TiO3 (SBT) nanoceramics by sol-gel auto combustion technique.•It's structural, morphological, infrared, and multiferroic properties were studied.•Pure SBT sample shows cubic structure whereas Fe doped SBT samples transformed in a tetragonal phase.•Magnetic and ferroelectric properties strongly influenced by Fe ion doping.•Co-existence of magnetic & ferroelectric properties makes it potential candidate for multiferroic device applications.