Person:
Sanz García, Eduardo Santiago

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First Name
Eduardo Santiago
Last Name
Sanz García
URI
https://hdl.handle.net/20.500.14352/76228
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Ciencias Químicas
Department
Química Física
Area
Química Física
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Author: Montero De Hijes, Pablo × Subject: 544 ×

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    Anomalous Behavior in the Nucleation of Ice at Negative Pressures
    (Physical Review Letters, 2021) Bianco, Valentino; Montero De Hijes, Pablo; Cintia P. Lamas; Sanz García, Eduardo Santiago; Carlos Vega; Vega De Las Heras, Carlos
    Ice nucleation is a phenomenon that, despite the relevant implications for life, atmospheric sciences, and technological applications, is far from being completely understood, especially under extreme thermodynamic conditions. In this work we present a computational investigation of the homogeneous ice nucleation at negative pressures. By means of the seeding technique we estimate the size of the ice critical nucleus Nc for the TIP4P/Ice water model. This is done along the isotherms 230, 240, and 250 K, from positive to negative pressures until reaching the liquid-gas kinetic stability limit (where cavitation cannot be avoided). We find that Nc is nonmonotonic upon depressurization, reaching a minimum at negative pressures in the doubly metastable region of water. According to classical nucleation theory we establish the nucleation rate J and the surface tension γ, revealing a retracing behavior of both when the liquid-gas kinetic stability limit is approached. We also predict a reentrant behavior of the homogeneous nucleation line. The reentrance of these properties is related to the reentrance of the coexistence line at negative pressure, revealing new anomalies of water. The results of this work suggest the possibility of having metastable samples of liquid water for long times at negative pressure provided that heterogeneous nucleation is suppressed.