Ferroelectric and magnetic properties of Nd-doped Bi4 − x FeTi3O12 nanoparticles prepared through the egg-white method
1 King Abdullah Institute for Nanotechnology, King Saud University, P.O. Box 2460, Riyadh, 1151, Saudi Arabia
2 Department of Physics, Himachal Pradesh University, Summer Hill, Shimla, 171001, India
Nanoscale Research Letters 2012, 7:511 doi:10.1186/1556-276X-7-511Published: 18 September 2012
Multiferroic behavior of Bi4 − xNdxFeTi3O12 (0.0 ≤ × ≤ 0.25, × = 0.05) ceramic nanoparticles prepared through the egg-white method was investigated. The dielectric properties of the samples show normal behavior and are explained in the light of space charge polarization. Room temperature polarization-electric field (P-E) curves show that the samples are not saturated with maximum remanence polarization, Pr = 0.110 μC/cm2, and a relatively low coercive field, Ec = of 7.918 kV/cm, at an applied field of 1 kV/cm was observed for 5% Nd doping. The room temperature M-H hysteresis curve shows that the samples exhibit intrinsic antiferromagnetism with a weak ferromagnetism. These properties entitle the grown nanoparticles of BNFT as one of the few multiferroic materials that exhibit decent magnetization and electric polarization.