Applied Physics A

, Volume 85, Issue 1, pp 69–73 | Cite as

Study of A-site doping of SrBi4Ti4O15 Bi-layered compounds using micro-Raman spectroscopy

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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.

Keywords

Raman Spectrum Ferroelectric Phase Transition Perovskite Layer Aurivillius Phase Substitution State 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  • H. Hao
    • 1
    • 2
  • H.X. Liu
    • 1
    • 2
  • M.H. Cao
    • 2
  • X.M. Min
    • 2
  • S.X. Ouyang
    • 2
  1. 1.State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of TechnologyWuhanP.R. China
  2. 2.School of Material Science and Engineering, Key Laboratory for Silicate Materials Science and EngineeringWuhan University of TechnologyWuhanP.R. China

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