Type: Journal Publication
Abstract: Micro-Raman spectroscopy was used to investigate the chemical composition, microstructure and crystalline phase of an iron oxide sample with three-layer macro-structure prepared by iron oxidation. Two laser lines of 514 and 633 nm with a power of 0.5 mW on the sample were employed to excite the Raman spectra. Comparing the sample spectra to that of bulk alpha-Fe2O3, the sample Raman peaks were assigned. And it was found for the top-layer that the Raman frequencies were down shifted and the peak widths broadened. Therefore we verified that the top-layer of the verified sample is a nano-structure alpha-Fe2O3, the main component of the middle-layer is Fe3O4 and the bottom-layer is most like bulk alpha-Fe2O3.
Cited as: Tao Hu, X. Lu, Y. Yan, Y. Fu, H. Zhang and S. L. Zhang, "Raman Spectroscopic Study on Iron Oxides Prepared by Oxidation of Iron", Spectroscopy and Spectral Analysis 24, 1072 (2004)