Hostname: page-component-78c5997874-xbtfd Total loading time: 0 Render date: 2024-11-05T05:03:52.589Z Has data issue: false hasContentIssue false
  • English
  • Français

Disorderly conduct in Bi2Ln2Ti3O12 Aurivillius phases (Ln = La, Pr, Nd, Sm).

Published online by Cambridge University Press:  11 February 2011

Neil C. Hyatt  and
Joseph A. Hriljac
Neil C. Hyatt
Affiliation:
Department of Engineering Materials, The University of Sheffield, Mappin Street, Sheffield, S1 3JD., UK.
Joseph A. Hriljac
Affiliation:
School of Chemical Sciences, The University of Birmingham, Edgbaston, Birmingham. B15 2TT., UK.
Get access

Abstract

The synthesis and structure of triple layered Bi2Ln2Ti3O12 Aurivillius phases, prepared from K2Ln2Ti3O10 Ruddlesden - Popper precursors has been investigated. In structural terms, these materials may be considered as being composed of a regular intergrowth of [Bi2O2]2+ fluorite and [Ln2Ti3O10]2- perovskite-type layers. A significant degree of cation disorder is present in the Bi2Ln2Ti3O12 system, involving the cross substitution of Ln / Bi cations onto the Bi / Ln sites in the fluorite and perovskite-type layers, respectively. Bi / Ln disorder destabilises the presence of the Ln cation in the perovskite-type layer as the size mismatch of the Bi / Ln cations increases. Cation disorder in the Bi2Ln2Ti3O12 system is therefore significantly suppressed as the size of the lanthanide cation is reduced.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 755: Symposium DD – Solid-State Chemistry of Inorganic Materials IV , 2002 , DD8.4
Copyright
Copyright © Materials Research Society 2003

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Aurivillius, B., Ark. Kemi. 1, 499 (1949).Google Scholar
de Araujo, C. A-Paz, Cuchiarom, J.D., McMillan, L.D., Scott, M.C. and Scott, J.F., Nature 374, 627 (1995).Google Scholar
3. Park, B.H., Kang, B.S., Bu, S.D., Noh, T.W., Lee, J. and Jo, W., Nature 401, 682 (1999).Google Scholar
4. Kingon, A., Nature 401, 659 (1999).Google Scholar
5. Scott, J.F., Physics World, Feb. 47 (1995).Google Scholar
6. Hervoches, C.H. and Lightfoot, P., J. Solid State Chem. 153, 66 (2000).Google Scholar
7. Blake, S.M., Falconer, M.J., McCreedy, M. and Lightfoot, P., J. Mater. Chem. 7, 1609 (1997).Google Scholar
8. Isumnandar, , Hunter, B.A. and Kennedy, B.J., Solid State Ionics 112, 281 (1998).Google Scholar
9. Isumnandar, and Kennedy, B.J., J. Mater. Chem. 9, 541 (1999).Google Scholar
10. Bu, S.D., Kang, B.S., Park, B.H. and Noh, T.W., J. Korean Phys. Soc. 36, L9 (2000).Google Scholar
11. Gopalakrishnan, J., Sivakumar, T., Ramesha, K., Thangadurai, V. and Subbanna, G.N., J. Am. Chem. Soc. 122, 6237 (2000).Google Scholar
12. Wolfe, R.W. and Newnham, R.E., J. Electrochem. Soc. 116, 832 (1969).Google Scholar
13. Armstrong, R.A. and Newnham, R.E., Mat. Res. Bull. 7, 1025 (1972).Google Scholar
14. Klug, H.P. and Alexander, L.E., X-ray Diffraction Procedures: for Polycrystalline and Amorphous Materials, Wiley-Interscience, (1974).Google Scholar
15. Larson, A.C. and Von Dreele, R.B., GSAS - General Structure Analysis System, Report LA-UR-86–748, Los Alamos National Laboratory, Los Alamos, NM 87545, (1990).Google Scholar
16. Hamilton, W.C., Acta Cryst. 18, 502 (1965).Google Scholar
17. Shannon, R.D., Acta Cryst. A32, 751 (1976).Google Scholar
18. Brown, I.D. and Altermatt, P., Acta Cryst. B41, 244 (1985).Google Scholar