Communication: Re-entrant limits of stability of the liquid phase and the Speedy scenario in colloidal model systems
- Author(s)
- Lorenzo Rovigatti, Valentino Bianco, Jose Maria Tavares, Francesco Sciortino
- Abstract
A re-entrant gas-liquid spinodal was proposed as a possible explanation of the apparent divergence of the compressibility and specific heat off supercooling water. Such a counter-intuitive possibility, e.g., a liquid that becomes unstable to gas-like fluctuations on cooling at positive pressure, has never been observed, neither in real substances nor in off-lattice simulations. More recently, such a reentrant scenario has been dismissed on the premise that the re-entrant spinodal would collide with the gas-liquid coexisting curve (binodal) in the pressure-temperature plane. Here we study, numerically and analytically, two previously introduced one-component patchy particle models that both show (i) a re-entrant limit of stability of the liquid phase and (ii) a re-entrant binodal, providing a neat in silico (and in charta) realization of such unconventional thermodynamic scenario.
- Organisation(s)
- Computational and Soft Matter Physics
- External organisation(s)
- University of Oxford, Instituto Politécnico de Lisboa, Universidade de Lisboa, Sapienza University of Rome, Institute of Genetics and Biophysics "Adriano Buzzati-Traverso", CNR
- Journal
- Journal of Chemical Physics
- Volume
- 146
- No. of pages
- 5
- ISSN
- 0021-9606
- DOI
- https://doi.org/10.1063/1.4974830
- Publication date
- 01-2017
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103015 Condensed matter
- Keywords
- ASJC Scopus subject areas
- General Physics and Astronomy, Physical and Theoretical Chemistry
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/8b222e84-37ae-463e-a023-ffe58c4c6a71