Goy, Claudia ; Potenza, Marco A. C. ; Dedera, Sebastian ; Tomut, Marilena ; Guillerm, Emmanuel ; Kalinin, Anton ; Voss, Kay-Obbe ; Schottelius, Alexander ; Petridis, Nikolaos ; Prosvetov, Alexey ; Tejeda, Guzmán ; Fernández, José M. ; Trautmann, Christina ; Caupin, Frédéric ; Glasmacher, Ulrich ; Grisenti, Robert E. (2018)
Erratum: Shrinking of Rapidly Evaporating Water Microdroplets Reveals their Extreme Supercooling [Phys. Rev. Lett. 120 , 015501 (2018)].
In: Physical Review Letters, 120 (12)
doi: 10.1103/PhysRevLett.120.129901
Artikel, Bibliographie

Kurzbeschreibung (Abstract)

The fast evaporative cooling of micrometer-sized water droplets in a vacuum offers the appealing possibility to investigate supercooled water—below the melting point but still a liquid—at temperatures far beyond the state of the art. However, it is challenging to obtain a reliable value of the droplet temperature under such extreme experimental conditions. Here, the observation of morphology-dependent resonances in the Raman scattering from a train of perfectly uniform water droplets allows us to measure the variation in droplet size resulting from evaporative mass losses with an absolute precision of better than 0.2%. This finding proves crucial to an unambiguous determination of the droplet temperature. In particular, we find that a fraction of water droplets with an initial diameter of 6379±12  nm remain liquid down to 230.6±0.6  K. Our results question temperature estimates reported recently for larger supercooled water droplets and provide valuable information on the hydrogen-bond network in liquid water in the hard-to-access deeply supercooled regime.

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