Abstract
The results of scanning electron microscope and qualitative element analysis studies, carried out on some typical structures exhibited by flux-grown ErFeO3 crystals grown from PbO-PbF2-B2O3 flux systems, are reported. Aluminium is present as an impurity in the crystals studied. Qualitative analysis of certain structures indicates the formation of magnetoplumbite (PbO · 6Fe2O3) during the flux growth of ErFeO3. Microdisc patterns are interpreted as resulting from the covering of such formations by the rapidly advancing growth fronts on the ErFeO3 crystal surfaces. The crystallization of ErOF and ErBO3 crystals on the ErFeO3 crystal surfaces is also indicated by the qualitative analysis. Precipitation of the impurity phases during the flux growth of ErFeO3 crystals and its effects on the development of the latter is discussed.
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