Crystallographic and Mössbauer studies of YMn1.8Fe0.2O5

Abstract The crystallographic and magnetic properties of YMn 1.8 Fe 0.2 O 5 powders have been studied by X-ray, neutron diffraction, and Mossbauer spectroscopy. The samples were prepared by sol–gel process and crystallized at various temperatures. The crystal structures of the powders sintered below 1100 °C were found to be a single phase of orthorhombic (pbam), whereas the other samples sintered above 1200 °C were changed to hexagonal structure with satellite phases. The Mossbauer spectra of YMn 1.8 Fe 0.2 O 5 powders can be understood primarily owing to its chemical and structural complexities.