Dynamics of liquid silica as explained by properties of the potential energy landscape.
The dynamics of silica displays an Arrhenius temperature dependence, classifying silica as a strong glass-former. Using recently developed concepts to analyze the potential energy landscape, one can get a far-reaching understanding of the long-range transport of silica. It can be expressed in terms of properties of the thermodynamics as well as local relaxation processes, thereby extending the phenomenological standard picture of a strong glass-former. The local relaxation processes are characterized by complex correlated sequences of bond breaking and reformation processes.
Saksaengwijit
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Westfälische Wilhelms-Universität Münster, Institut für Physikalische Chemie, Corrensstrasse 30, 48149 Münster, Germany.
Heuer
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