Hyperfine field in Zn2+0.3 Mn2+0.7 Mn3+y Fe3+2−y O4

Abstract
Mössbauer spectra of Zn2+03. Mn2+0.7 Mn3+y Fe3+2−y O4 with y values ranging from 0.0 to 1.0 in steps of 0.1 have been taken at room temperature. A possible explanation for the observed variations in the internal magnetic field, and the EFG is given.