Abstract / Description of output
An electronically coarse-grained model for water reveals a persistent vestige of the liquid-gas transition deep into the supercritical region. A crossover in the density dependence of the molecular dipole arises from the onset of non-percolating hydrogen bonds. The crossover points coincide with the Widom line in the scaling region but extend further, tracking the heat capacity maxima, offering evidence for liquid- and gas-like state points in a "one-phase" fluid. The effect is present even in dipole-limit models suggesting that it is common for all molecular liquids exhibiting dipole enhancement in the liquid phase.
Original language | English |
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Article number | 117801 |
Journal | Physical Review Letters |
Volume | 115 |
Issue number | 11 |
DOIs | |
Publication status | Published - 5 Aug 2015 |
Keywords / Materials (for Non-textual outputs)
- cond-mat.stat-mech
- physics.chem-ph