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In this article, chromium-doped gadolinium manganate (GdCr 0.3 Mn 0.7 O 3 ) nanoparticles has been prepared by wet-chemical route in order to investigate their structural, optical, electrical, and room temperature magnetic properties. Microstructural and compositional analyses have been carried out by X-ray diffraction and scanning electron microscopy (SEM). Synthesised material is found to be in orthorhombic crystal structure with  Pbnm  space group. The spherical morphology of the nanoparticles has been examined from the SEM images. Functional groups have been identified using Fourier transform infrared spectroscopy. Dielectric constant, dielectric loss, AC conductivity ( σ  ac ), and activation energy in the range of 1 kHz–1 MHz from room temperature to high temperature (400°C) have been investigated. The frequency dependence of AC conductivity obeys the universal power law. The value of activation energy depends on increase in frequency. Room temperature magnetic behaviour suggests the material to be paramagnetic in nature.

Preparation, Structural, Optical, Electrical, and Magnetic Characterisation of Orthorhombic GdCr 0.3 Mn 0.7 O 3 Multiferroic Nanoparticles