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Driving rate effects in avalanche-mediated, first-order phase transitions

Francisco-Jose Perez-Reche·Bosiljka Tadic·Lluis Manosa·Antoni Planes·Eduard Vives
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Abstract

We have studied the driving rate and temperature dependence of the power-law exponents that characterize the avalanche distribution in first-order phase transitions. Measurements of acoustic emission in structural transitions in Cu-Zn-Al and Cu-Al-Ni are presented. We show how the observed behaviour emerges within a general framework of competing time scales of avalanche relaxation, driving rate, and thermal fluctuations. We have confirmed our findings by numerical simulations of a prototype model.

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Francisco-Jose Perez-Reche, Bosiljka Tadic, Lluis Manosa, Antoni Planes, Eduard Vives. 2004-06-04. Driving rate effects in avalanche-mediated, first-order phase transitions. https://doi.org/10.1103/physrevlett.93.195701

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