Abstract
This communication presents the dielectric and magnetodielectric studies of Bi3.7Sm0.3Ti2.7Fe0.3O12 ceramic samples synthesized by a conventional solid state reaction method. X-ray diffraction (XRD) patterns reveal the formation of single phase orthorhombic structure. Dielectric measurements have shown anomalous behavior around 150°C. Dielectric modulus analysis confirms the non-Debye type relaxation behavior at higher temperature. Room temperature weak ferromagnetism has been observed for Sm/Fe modified bismuth titanate ceramic with 2Mr value of 5.4×10−3emu/g. Magnetodielectric measurement shows the variation in dielectric constant value with applied magnetic field of 5T, which confirms the magnetodielectric coupling in the system. The present results suggest a new material for room temperature multiferroic applications.
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