Athermal character of structural phase transitions.

نویسندگان

  • F J Pérez-Reche
  • E Vives
  • L Mañosa
  • A Planes
چکیده

The significance of thermal fluctuations in nucleation in structural first-order phase transitions has been examined. The prototypical case of martensitic transitions has been experimentally investigated by means of acoustic emission techniques. We propose a model based on the mean first-passage time to account for the experimental observations. Our study provides a unified framework to establish the conditions for isothermal and athermal transitions to be observed.

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عنوان ژورنال:
  • Physical review letters

دوره 87 19  شماره 

صفحات  -

تاریخ انتشار 2001