Physics and Chemistry of Minerals

, Volume 35, Issue 1, pp 11–16 | Cite as

Order parameter coupling in leucite: a calorimetric study

  • Helen Newton
  • Stuart A. HaywardEmail author
  • Simon A. T. Redfern
Original Paper


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.


Leucite Calorimetry Phase transitions 


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Copyright information

© Springer-Verlag 2007

Authors and Affiliations

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

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