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Colloquia

ics Colloquium
Friday, November 18, 2005
4:00 PM
Physics Building, Room 204
Note special time.
Joe Poon [Host: Genya Kolomeisky]
UVA
"Glassy Metals – Complexity Made Simpler "
ABSTRACT:
Although ubiquitous in nature and technology, the microscopic study of liquids and glasses lags far behind that of crystals and quasicrystals. This is because liquids and glasses do not exhibit long-range order, which frustrates theoretical description. To date, the common approaches for modeling the dynamics and glass transition of liquids are based on the potential energy landscape paradigm. Theoretical approaches such as the mode-coupling theory and replica method, although successful in advancing our understanding of the dynamics and thermodynamics of the liquid-glass transition, have not provided specific predictions of the important parameters of the glassy state. Recently, a simple complementary model based on atomic-level fluctuations in the amorphous network has been successfully applied to the computation of these parameters. The latter approach may also provide a pathway to a more general microscopic understanding of liquids and glasses. The rest of this talk will focus on glassy metals as futuristic metals with certain promising and enabling properties.

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