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Type: Artigo de periódico
Title: Theoretical evidence for a first-order liquid-liquid phase transition in gallium
Author: Jara, DAC
Michelon, MF
Antonelli, A
de Koning, M
Abstract: We report on theoretical results that lend support to recent experimental observations suggesting the existence of a first-order liquid-liquid phase transformation (LLPT) in gallium. Using molecular dynamics simulation based on a modified embedded-atom model, we observe a transition from a high-density to a low-density liquid in the supercooled regime. The first-order character of the transition is established through the detection of the release of latent heat and our findings suggest that the LLPT terminates in a critical point that is located in the tensile-strained domain of the metastable phase diagram. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3154424]
Country: EUA
Editor: Amer Inst Physics
Rights: aberto
Identifier DOI: 10.1063/1.3154424
Date Issue: 2009
Appears in Collections:Unicamp - Artigos e Outros Documentos

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