Physics and Chemistry of Minerals

, Volume 35, Issue 1, pp 11–16

Order parameter coupling in leucite: a calorimetric study

  • Helen Newton
  • Stuart A. Hayward
  • Simon A. T. Redfern
Original Paper

DOI: 10.1007/s00269-007-0193-3

Cite this article as:
Newton, H., Hayward, S.A. & Redfern, S.A.T. Phys Chem Minerals (2008) 35: 11. doi:10.1007/s00269-007-0193-3
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Abstract

The thermal anomalies associated with the Ia3dI41/acdI41/a transition sequence of phase transitions in leucite have been studied by differential scanning calorimetry and interpreted with Landau theory. Both transitions are close to the tricritical point. The coupling between the two transitions is biquadratic, and reduces the stability of the I41/a phase.

Keywords

Leucite Calorimetry Phase transitions 

Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • Helen Newton
    • 1
  • Stuart A. Hayward
    • 1
  • Simon A. T. Redfern
    • 1
  1. 1.Department of Earth SciencesUniversity of CambridgeCambridgeUK