High pressure investigation of the cdw phase diagram of 1T-TaS2

  • D. R. P. Guy
  • A. M. Ghorayeb
  • S. C. Bayliss
  • R. H. Friend
I. Structure
Part of the Lecture Notes in Physics book series (LNP, volume 217)


We have investigated the charge density wave phase diagram of 1T-TaS2, including the transition from the triclinic (T-) phase to the nearly-commensurate (NC-) phase found at about 283K on warming, by means of resistivity measurements under pressure. These data are combined with transition temperature and latent heat data from differential scanning calorimetry measurements to give estimates of the volume changes at the transitions using the Clausius-Clapeyron equation. The discrepancy between estimated and measured volume changes at the transition between the NC-phase and the commensurate (C-) phase on cooling is explained by considering the time-dependence of this transition under pressure.


Resistivity Measurement Differential Scanning Calorimetry Measurement Charge Density Wave Thermal Result Measure Volume Change 
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Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • D. R. P. Guy
    • 1
  • A. M. Ghorayeb
    • 1
  • S. C. Bayliss
    • 1
  • R. H. Friend
    • 1
  1. 1.Cavendish LaboratoryCambridgeUK

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