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Published on: February 4, 2021
Crystalline nucleation in undercooled liquids: a Bayesian data-analysis approach for a nonhomogeneous Poisson process
A Filipponi1, A Di Cicco, E Principi
1Dipartimento di Scienze Fisiche e Chimiche, Università degli Studi dell'Aquila, I-67100 Coppito, L'Aquila, Italy. adriano.filipponi@aquila.infn.it
Abstract:
A Bayesian data-analysis approach to data sets of maximum undercooling temperatures recorded in repeated melting-cooling cycles of high-purity samples is proposed. The crystallization phenomenon is described in terms of a nonhomogeneous Poisson process driven by a temperature-dependent sample nucleation rate J(T). The method was extensively tested by computer simulations and applied to real data for undercooled liquid Ge. It proved to be particularly useful in the case of scarce data sets where the usage of binned data would degrade the available experimental information.
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