Averrhoa bilimbi fruit extracts were used to synthesise ferrite, and the materials' Raman spectrum was characterised. The size of a crystallite can be determined using a Raman spectrum.
It is quite difficult to determine the size of crystallites from a single Raman spectrum. However, this is possible if you obtain Raman spectra from crystallites with known sizes before.
Thank you Alexander S Krylov, kindly read sir, that why i asked Q
doi:10.3390/c5040069
Title:Analyzing the Raman Spectra of Graphenic Carbon Materials from Kerogens to Nanotubes: What Type of Information Can Be Extracted from Defect Bands?