Magnetic, dielectric and calorimetric studies on 0.9BiFeO3-0.1BaTiO3 indicate strong magnetoelectric coupling. XRD studies reveal a very remarkable change in the rhombohedral distortion angle and a significant shift in the atomic positions at the magnetic Tc due to an isostructural phase transition. The calculated polarization using Rietveld refined atomic positions scales linearly with magneti...

Electrostatic-force-sensitive scanning probe microscopy (SPM) is used to investigate grain boundary behavior in polycrystalline BiFeO3 ceramics. Scanning surface potential microscopy (SSPM) of a laterally biased sample exhibits potential drops due to resistive barriers at the grain boundaries. In this technique, the tips acts as a moving voltage probe detecting local variations of potential ass...

Using high temperature solid state reaction technique ceramic composites (1-x)BiFeO3 - xBa5TbTi3V7O30 having different x values are prepared. Basic crystal qualities studied using XRD which shows that there’s a formation of BiFeO3 and Ba5TbTi3V7O30 phases. There observed change in the basic structure as changes is most distorted for = 0.5. From SEM study, it found grain size minimum pure ferroe...

As a room temperature multi-ferroic with coexisting anti-ferromagnetic, ferroelectric and ferroelastic orders, BiFeO(3) has been extensively studied to realize magnetoelectric devices that enable manipulation of magnetic ordering by an electric field. Moreover, BiFeO(3) is a promising candidate for ferroelectric memory devices because it has the largest remanent polarization (P(r)>100 μC cm(-2)...

We report the synthesis of multiferroic BiFeO3 perovskite nanoparticles using microwave combustion technique. Phase evolution is investigated by XRD, which confirms that formation a secondary ?-Bi2O3 phase with monoclinic structure along existing rhombohedral (BiFeO3) structure. The average crystalline size has been found at 50 nm. optical band gap was calculated from Tauc’s plot it 2.18 eV. ap...

BiFeO3 is an interesting material due to its multiferroic properties. It attracts attention potential applications in spintronics and microelectronics for data storage, among others. Single-phase bulk from difficult synthesize. The kinetics of perovskite phase formation most often leads the presence impurity phases. has been shown that low levels replacement Bi with rare earth ions lead stabili...

imaging of ferroelectric domains in BiFeO3 nanostructures Ramesh Nath, Seungbum Hong, Jeffrey A. Klug, Alexandra Imre, Michael J. Bedzyk, Ram S. Katiyar, and Orlando Auciello Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, USA Institute of Functional Nanomaterials, University of Puerto Rico, San Juan Puerto Rico 00931, USA Department of Physics and Astronomy, No...