Synthesis, characterization and study of magnetic, electrical and dielectric properties of La1−xDyxCo1−yFeyO3 nanoparticles prepared by wet chemical route

•La1−xDyxCo1−yFeyO3 nanoparticles were prepared in the range 20–60 nm.•12 Fold increase in DC resistivity achieved for La0.40Dy0.60Co0.40Fe0.60O3.•Paramagnetic to ferromagnetic behavior was observed for La1−xDyxCo1−yFeyO3 nanoparticles.

Dy3+ and Fe3+ co-doped LaCoO3 perovskite nanoparticles were prepared by chemical co-precipitation route. Structural elucidation was carried out by thermo gravimetric analysis (TGA), X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier transform infrared (FTIR) spectroscopy. The data of all these characterization techniques confirmed the orthorhombic phase with particles size in the range of 20–60 nm. The magnetic parameters, DC-resistivity and dielectric properties were measured for La1−xDyxCo1−yFeyO3 nanoparticles. The purpose of all these application studies was to evaluate the prepared materials for practical applications. The substitution of Dy3+ and Fe3+ with La3+ and Co3+ respectively greatly influenced the magnetic, DC-resistivity and dielectric parameters.