首页|Tuning of the structural, morphological, dielectric, and magnetoresistance properties of Gd2NiMnO6 double perovskite by Ca doping
Tuning of the structural, morphological, dielectric, and magnetoresistance properties of Gd2NiMnO6 double perovskite by Ca doping
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NSTL
Elsevier
The effect of replacing Gadolinium with Calcium in site A of the Gd2NiMnO6 perovskite on the structural, dielectric, morphological, and magnetoresistance properties was examined in this paper. The materials were synthesized using the solid-state process. X-Ray Diffraction was adopted to determine the phase of the samples that revealed a monoclinic structure along with P2(1)/n space group verified using Rietveld refinement. Scanning Electron Microscope imaging of the samples shows the grain size reduction after doping with Ca2+ ions. The grain and grain boundaries were found to have a significant influence on the temperature and frequency dependence of the dielectric properties. A huge enhancement in dielectric constant accompanied with diminished dielectric loss was found by increasing the concentration of dopant. Also, a negligible effect on magnetoresistance by applying a high magnetic field was found. However, the resistivity happened to be increased tremendously with doping. This improvement in dielectric properties indicates that these samples can be used in high-frequency applications.
NSTL
Elsevier
