Evolution of the Magnetic and Structural Properties with the Chemical Composition in Oleate-Capped Mn_<i>x</i>Co_1–<i>x</i>Fe₂O₄ Nanoparticles

Understanding the complex link among composition, microstructure, and magnetic properties paves way to rational design of well-defined materials. In this context, evolution structural in a series oleate-capped manganese-substituted cobalt ferrites (MnxCo1–xFe2O4) with variable Co/Mn molar ratios is deeply discussed. Single-phase similar crystallite particle sizes (about 10 nm), size dispersity (14%), weight percentage capping oleate molecules (17%) were obtained by an oleate-based solvothermal approach. The similarities samples permitted interpretation results exclusively on basis actual beyond other parameters. temperature field dependences magnetization studied together interparticle interactions DC magnetometry. Characteristic temperatures (Tmax, Tdiff, Tb), coercivity, anisotropy field, reduced remanence found be affected ratio, mainly due anisotropy, interactions, volume distribution. addition, manganese distributions hypothesized chemical inversion degree 57Fe Mössbauer spectroscopy, constant, saturation magnetization.