Figure 10
In-field (5 K / 5 T) Mössbauer spectrum of the CoFe 2 O 4 spinel phase formed by heating of 1a up to 600°C. Crosses represent the experimental data and the upper and middle full lines represent the subspectra obtained from the fitting procedure for iron atoms in T- and O-sites, respectively, and the lower full line represents their sum. External field was applied parallel to the γ ray propagation.