Figure 2
From: Bi deficiency-tuned functionality in multiferroic Bi1-δFe0.95Mn0.05O3 films

Raman spectra of Bi1-δFe0.95Mn0.05O3 films with different δ concentrations.
The inset shows the change of intensity ratios of Raman vibrational modes at 141 cm−1 with 622 cm−1 and 169 cm−1, respectively, with Bi deficiency concentrations.