Mössbauer Emission Spectroscopy of 57Fe Arising from 57Mn in Metal and Oxides of Chromium

Abstract

The chemical states of 57Fe arising from 57Mn produced by the 54Cr (α, p) 57Mn reaction in the metal and oxides of chromium were studied by 57Fe Mössbauer emission spectroscopy. In chromium metal, all of the 57Fe atoms were found at substitutional sites. Both the iron(II) and iron(III) species were observed in Cr2O3, while only iron(III) ions were detected in CrO3.