Crystal structure evolution and local symmetry of perovskite solid solution Ba [(Fe1/2Nb1/2) 1− xTix] O3 investigated by Raman spectra
W Zhang, Z Wang, XM Chen - Journal of Applied Physics, 2011 - pubs.aip.org
The local crystal structure and phonon modes of Ba [(Fe 1/2 Nb 1/2) 1− x Ti x] O 3 solid
solutions (x= 0, 0.2, 0.4, 0.6, 0.8, 0.85, 0.9, 0.95) were investigated by Raman spectroscopy
in the range of 100–1000 cm− 1 at room temperature. Typical tetragonal structure with C 4v
symmetry was determined for Ba [(Fe 1/2 Nb 1/2) 0.05 Ti 0.95] O 3, which was in accordance
with the X-ray diffraction (XRD) result. Similar Raman spectra with broader peaks were
observed for x decreasing from 0.95 to 0.80, indicating weakening of the Ti 4+ displacement …
solutions (x= 0, 0.2, 0.4, 0.6, 0.8, 0.85, 0.9, 0.95) were investigated by Raman spectroscopy
in the range of 100–1000 cm− 1 at room temperature. Typical tetragonal structure with C 4v
symmetry was determined for Ba [(Fe 1/2 Nb 1/2) 0.05 Ti 0.95] O 3, which was in accordance
with the X-ray diffraction (XRD) result. Similar Raman spectra with broader peaks were
observed for x decreasing from 0.95 to 0.80, indicating weakening of the Ti 4+ displacement …
以上显示的是最相近的搜索结果。 查看全部搜索结果