Studying the effects of Zr-doping in (Bi0.5Na0.5)TiO3via diffraction and spectroscopy.

نویسندگان

  • Peter E R Blanchard
  • Samuel Liu
  • Brendan J Kennedy
  • Chris D Ling
  • Zhaoming Zhang
  • Maxim Avdeev
  • Ling-Yun Jang
  • Jyh-Fu Lee
  • Chih-Wen Pao
  • Jeng-Lung Chen
چکیده

The structural properties of (Bi0.5Na0.5)Ti1-xZrxO3 (where 0 ≤ x ≤ 0.7) have been investigated using powder diffraction and X-ray absorption spectroscopy. Diffraction measurements on (Bi0.5Na0.5)TiO3 confirm that both monoclinic Cc and rhombohedral R3c phases are present at room temperature. Doping small amounts of Zr into the B site of (Bi0.5Na0.5)TiO3 initially stabilizes the rhombohedral phase before the orthorhombic Pnma phase begins to form at x = 0.5. Analysis of the Ti K-edge and Zr L3-edge XANES spectra show that the crystallographic phase change has very little effect on the local structure of Ti(4+)/Zr(4+) cations, suggesting that there is little change in the cation off-center displacement within the BO6 octahedra with each successive phase change.

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عنوان ژورنال:
  • Dalton transactions

دوره 43 46  شماره 

صفحات  -

تاریخ انتشار 2014