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Title: Driving rate effects in avalanche-mediated first-order phase transitions
Author: Pérez Reche, Francisco José
Tadic, Bosiljka
Mañosa, Lluís
Planes Vila, Antoni
Vives i Santa-Eulàlia, Eduard
Keywords: Ciència dels materials
Transformacions de fase (Física estadística)
Phase transitions
Materials science
Issue Date: 2004
Publisher: American Physical Society
Abstract: We study 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 behavior emerges within a general framework of competing time scales of avalanche relaxation, driving rate, and thermal fluctuations. We confirm our findings by numerical simulations of a prototype model.
Note: Reproducció digital del document proporcionada per PROLA i
It is part of: Physical Review Letters, 2004, vol. 93, núm. 19, p. 195701-1-195701-4
ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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