Microwave-Assisted Synthesis of YСохFe1 –хO3 Nanocrystals

Resumo

We propose microwave activation of the synthesis of yttrium ferrite doped with different cobalt concentrations. According to X-ray diffraction results, the synthesized YFeO₃ and YСо_хFe_{1 –х}O₃ (with up to a 15% nominal doping level) are essentially free from impurity phases. The powders range in particle size from 20 to 60 nm (according to transmission electron microscopy data). Cobalt doping of YFeO₃ raises the magnetic permeability of the material and broadens its hysteresis loop, which is due to an increase in spin–orbit interaction energy.