In the following FTIR spectrum, what are the two peaks in the wavelength range of 650 and 930?

Hi everyone I synthesized Mn-Zn ferrite powder. In the FTIR spectrum, there are four peaks at wavelengths less than 1000, two of which are related to Fe3+_O2-. What are the other two related to?

23 May 2023 2,810 3 View