Aqueous Synthesis of Ru Doped Hematite Nanostructures: A Morphological, Structural, Optical, and Magnetic Study

Figure 7

Mössbauer spectra of Ru doped hematite powder samples after annealing at 500°C. For comparison, the Mössbauer spectrum of undoped α-Fe₂O₃ is also shown.

(a) α-Fe₂O₃

(b) 0.006 g Ru. °C

(c) 0.018 g Ru. °C

(d) 0.030 g Ru. °C