Yang Yang, Qiang Zhang, Wenbo Mi, Xixiang Zhang. Lattice deformation in epitaxial Fe3O4 films on MgO substrates studied by polarized Raman spectroscopy[J]. Chinese Physics B, 2020, 29(8):
- Chinese Physics B
- Vol. 29, Issue 8, (2020)
Fig. 1. Schematic drafts for (a) normal and (b) cross-sectional scattering configurations. The polarization direction of incident laser is along the X axis, while the polarization direction of scattered is along the X and Y axes for parallel (VV) and crossed (VH) scattering geometries, respectively.
![Polarized Raman spectra of the Fe3O4 film of 217 nm obtained in the normal [(a) and (b)] and cross-sectional [(c) and (d)] scattering configuration.](/richHtml/cpb/2020/29/8/083302/img_2.jpg)
Fig. 2. Polarized Raman spectra of the Fe3O4 film of 217 nm obtained in the normal [(a) and (b)] and cross-sectional [(c) and (d)] scattering configuration.
Fig. 3. Thickness-dependent peak position and bandwidth (FWHM) of E g, T 2 g ( 2 ) A 1g modes.
Fig. 4. Different Raman modes and their corresponding numerically fitted curves. Black circles represent the experimental results, the red lines are the fitting results.
Fig. 5. (a) bandwidth and (b) correlation length for T 2 g ( 1 ) Γ l/Γ h).
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