Fragile-to-Strong Crossover in Supercooled Liquids Remains Elusive

Details Fragile-to-Strong Crossover in Supercooled Liquids Remains Elusive Fragile-to-Strong Crossover in Supercooled Liquids Remains Elusive

2011-03-30

arxiv.org/abs/1103.6063v2

Physics

Condensed Matter

Soft Condensed Matter

1 figure

Scientific paper

A critique of a recent paper [Mallamace et al PNAS 2010 107 (52) 22457-2246] purporting the existence of a fragile-to-strong crossover in super cooled liquids is presented. It is shown that Mallamace et al have mistaken the onset crossover with the fragile-strong crossover. Moreover, it is shown that supercooled liquid transport data follows the expected parabolic function, without a crossover to another functional form, and that Mallamace et al have obscured this fact by singling out anomalous data as examples.

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