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dc.contributor.authorZhou, Q-
dc.contributor.authorBlanchard, PER-
dc.contributor.authorKennedy, BJ-
dc.contributor.authorLing, CD-
dc.contributor.authorLiu, S-
dc.contributor.authorAvdeev, M-
dc.contributor.authorAitken, JB-
dc.contributor.authorTadich, A-
dc.contributor.authorBrand, HEA-
dc.identifier.citationZhou, Q., Blanchard, P. E. R., Kennedy, B. J., Ling, C. D., Liu, S., Avdeev, M., Aitken, J. B., Tadich, A., & Brand, H. E. A. (2014). Diffraction and spectroscopic study of pyrochlores Bi2−xFe1+xSbO7. Journal of Alloys and Compounds, 589, 425-430. doi:10.1016/j.jallcom.2013.11.226en_US
dc.description.abstractThe structural and electronic properties of the series Bi2−xFe1+xSbO7 (0 ⩽ x ⩽ 0.6) were investigated using a combination of diffraction and spectroscopy. Synchrotron and neutron diffraction analysis show that Fe3+ cations substitute for Bi3+ onto the A site with increasing x, which was further confirmed by analysis of the Fe K/L-edge X-ray absorption near-edge spectra. The diffraction analysis indicated the presence of displacive disorder along the A2O chains, likely the result of the Bi3+ 6s2 lone pair, as well as non-Vegard-like behaviour of the lattice parameters in the Fe-poor region. Fe K-edge extended X-ray absorption fine-structure analysis of Bi2FeSbO7 confirmed the displacive disorder of the Bi3+ cations as well as Sb5+ and Fe3+ disorder on the B site. © 2013 Elsevier B.V.en_US
dc.subjectNeutron diffractionen_US
dc.subjectX-ray diffractionen_US
dc.subjectBismuth oxidesen_US
dc.subjectCrystal latticesen_US
dc.subjectFine structureen_US
dc.titleDiffraction and spectroscopic study of pyrochlores Bi2−xFe1+xSbO7en_US
dc.typeJournal Articleen_US
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