Athermal character of structural phase transitions.
نویسندگان
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