The complete unfolding of the melting process, from the nucleation onset to the achievement of a bulk liquid structure, is studied for the first time in ice, the archetypal H-bonded molecular crystal. A picosecond infrared pulse is employed to deliver the energy needed for complete melting; the lattice is homogenously heated from within, above its melting temperature. The growth of liquid domains is studied by dynamic Mie scattering over distances of micrometers and the full process is monitored from 2-3 ns after the liquid nucleus formation up to tens of ms.
Melting dynamics of ice in the mesoscopic regime / Citroni, Margherita; Fanetti, Samuele; Falsini, Naomi; Foggi, Paolo; Bini, Roberto. - In: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA. - ISSN 0027-8424. - STAMPA. - 114:(2017), pp. 5935-5940. [10.1073/pnas.1620039114]
Melting dynamics of ice in the mesoscopic regime
CITRONI, MARGHERITA;FANETTI, SAMUELE;FALSINI, NAOMI;FOGGI, PAOLO;BINI, ROBERTO
2017
Abstract
The complete unfolding of the melting process, from the nucleation onset to the achievement of a bulk liquid structure, is studied for the first time in ice, the archetypal H-bonded molecular crystal. A picosecond infrared pulse is employed to deliver the energy needed for complete melting; the lattice is homogenously heated from within, above its melting temperature. The growth of liquid domains is studied by dynamic Mie scattering over distances of micrometers and the full process is monitored from 2-3 ns after the liquid nucleus formation up to tens of ms.
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