Breakdown of Stokes-Einstein relation in supercooled water
Pradeep Kumar
TL;DR
This paper investigates the failure of the Stokes-Einstein relation in supercooled water at low temperatures, linking it to structural changes and increased dynamic heterogeneities near the Widom line.
Contribution
It proposes a hypothesis connecting the breakdown to structural transformations and dynamic heterogeneity increases in supercooled water.
Findings
Breakdown of Stokes-Einstein relation observed at low T.
Structural changes correlate with dynamic heterogeneity.
Crossing the Widom line influences water's transport properties.
Abstract
Water displays breakdown of the Stokes-Einstein relation at low temperatures. We hypothesize that the breakdown is a result of the structural changes and a sharp rise in dynamic heterogeneities that occurs low T upon crossing the Widom line.
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