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CPM Seminar
Prof. Peter H. Poole
Department of Applied Mathematics Polymorphism for crystalline phases of a pure (i.e. one-component) substance is a common phenomenon; the diamond and graphite phases of carbon are well-known examples. Recent experimental and computer simulation studies have revealed that an analogous phenomenon may also apply to the liquid and glass forms of certain substances, in particular, water and other tetrahedrally coordinated systems. Specifically, it is proposed that below a critical temperature, deeply supercooled water spontaneously phase separates into distinct liquid phases differing in density. We will summarize the evidence that has led to this hypothesis, and discuss its implications for our understanding of the properties of liquids, and the glassy materials they form at low temperature.
Thursday, December 4th, 15:30 |