Letter | Published:

Non-stoichiometry and dielectric properties

Nature volume 272, pages 603605 (13 April 1978) | Download Citation

Subjects

Abstract

A LONG-STANDING problem concerning the structural properties of non-stoichiometric phases is the factor which determines whether point or extended defects are formed. We discuss this problem using results of exact lattice energy calculations. We find that cation relaxation plays a crucial role in stabilising extended defects; and we show that this explains an empirical correlation, established by Tilley1, between the dielectric properties and defect structure of non-stoichiometric compounds.

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.

from$8.99

All prices are NET prices.

References

  1. 1.

    Nature 269, 229 (1977).

  2. 2.

    , & J. Phys. C, 4, 3107 (1971).

  3. 3.

    Proc. Br. ceram. Soc. 1, 9 (1964).

  4. 4.

    & J. Solid St. Chem. 21, 49 (1977).

  5. 5.

    & UKAEA Rep. (in the press).

  6. 6.

    UKAEA Rep. AERE–TP666.

  7. 7.

    Acta chem. scand. 14, 1161 (1960).

  8. 8.

    & J. Solid St. Chem. 14, 66 (1975).

  9. 9.

    , & J. Solid St. Chem. 20, 43 (1977).

  10. 10.

    & Phys. Rev. B7, 1131 (1973).

Download references

Author information

Affiliations

  1. Department of Chemistry, University College London, 20 Gordon Street, London WC1, UK

    • C. R. A. CATLOW
    •  & R. JAMES

Authors

  1. Search for C. R. A. CATLOW in:

  2. Search for R. JAMES in:

About this article

Publication history

Received

Accepted

Published

DOI

https://doi.org/10.1038/272603a0

Further reading

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.