The Free Energy Surface of Supercooled Water
Statistical Mechanics
2009-10-31 v1
Abstract
We present a detailed analysis of the free energy surface of a well characterized rigid model for water in supercooled states. We propose a functional form for the liquid free energy, supported by recent theoretical predictions [Y. Rosenfeld and P. Tarazona, Mol. Phys. {\bf 95}, 141 (1998)], and use it to locate the position of a liquid-liquid critical point at ~K, MPa, and ~g/cm. The observation of the critical point strengthens the possibility that SPC/E water may undergo a liquid-liquid phase transition. Finally, we discuss the possibility that the approach to the liquid-liquid critical point could be pre-empted by the glass transition.
Keywords
Cite
@article{arxiv.cond-mat/0007488,
title = {The Free Energy Surface of Supercooled Water},
author = {A. Scala and F. W. Starr and E. La Nave and H. E. Stanley and F. Sciortino},
journal= {arXiv preprint arXiv:cond-mat/0007488},
year = {2009}
}