Structural, magnetic and electrical properties of gadolinium doped cobalt ferrite nanoparticles: Role of Gd doping level

Autor: Jhala, I.G., Maru, Apexa, Hathiya, Laxmi, Desai, Harshal B., Shah, N.A., Solanki, P.S., Tanna, Ashish R., Joshi, H.H.
Zdroj: Nano-Structures & Nano-Objects; December 2024, Vol. 40 Issue: 1
Abstrakt: In this communication, effect of Gd doping for CoFe2–xGdxO4(CFGO) nanoparticles has been investigated for structural, magnetic and electrical properties. X–ray diffraction (XRD) patterns reveal the presence of matrix like CFGO phase fraction with coexisting GdFeO3(GFO) smaller crystallites and α–Fe2O3(FO) phase fraction. Variation in crystallite size (D) for all three phases has been explored from the analysis on XRD patterns. Magnetic nature has been understood on the basis of lattice disorder, magnetic linkages between different ions of CFGO lattices that conduces magnetic characteristic of three different phases coexist within the CFGO nanoparticle lattices. Influence of frequency, temperature and Gd doping level on different electrical behaviors has been understood on the bases of various relaxation processes, charge conduction mechanism, correlated barrier hopping (CBH) mechanism, maximum barrier height, activation energy and structure–property correlations.
Databáze: Supplemental Index