Abstract
Gd1−xBixFe1−yZryO3 nanoparticles were synthesized via micro-emulsion route with different molar concentrations of Bi+3 (x) and Zr+4 (y). The values of x and y were kept in the range 0.00, 0.15, 0.30, 0.45 and 0.60. The characterizations were done by the thermo-gravimetric analysis (TGA), X-ray Diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The average particle size was ~50nm. The effect of Bi3+ and Zr4+ contents on electrical, dielectric and magnetic parameters were studied. The DC resistivity measurements showed at certain Bi3+ and Zr4+ contents, more than two fold increase in electrical resistivity from 68×108Ωcm to 150×108Ωcm. The magnetic measurements showed the paramagnetic nature of Gd1−xBixFe1−yZryO3 nanoparticles. The electrical and magnetic properties of these nanoparticles suggested that these materials are potential candidates for the fabrication of telecommunication and switching devices.