Abstract
The temperature-dependent Raman spectra of Mg- and La-doped SrBi4Ti4O15 (SBT) were studied in the range 40–590 °C. A quantum chemistry calculation was employed to estimate these two substitution states. It was found that A-site doping in this study not only caused multiplicative substitution states, but also the Raman spectra changed with the substitution amount. In a La-doped perovskite-like layer, La would occupy the Bi site when x>0.10 and the 314 and 550 cm-1 modes related to the rotating and tilting of the TiO6 octahedron firstly became wide and then became sharp. With the increase of the substitution amount, both substitution states of Mg-doped SBT lead to the widening of 270 and 520 cm-1 peaks.
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78.30.-J; 77.84.-s
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Hao, H., Liu, H., Cao, M. et al. Study of A-site doping of SrBi4Ti4O15 Bi-layered compounds using micro-Raman spectroscopy. Appl. Phys. A 85, 69–73 (2006). https://doi.org/10.1007/s00339-006-3651-8
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DOI: https://doi.org/10.1007/s00339-006-3651-8