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PHYSICS DEPARTMENT COLLOQUIUM
Interface Dynamics: Stretched Molecules and Heat Transfer
Dr. William L. Hase
Robert A. Welch Professor of Chemistry
Department of Chemistry and Biochemistry
Texas Tech University
e-mail
web page
Comparisons of chemical dynamics simulations and
experiments have shown that the simulations give accurate efficiencies for
energy transfer at hydrocarbon interfaces, including quantum state-to-state
energy transfer. This seminar will discuss recent simulations of heat
transfer at the interface of two diamond nano-surfaces, and of the energy
transfer and fragmentation dynamics of stretched molecules. The former will
address the effects of an applied force, temperature, and nano-surface size
on the heat transfer. An interesting feature of the latter is the change in
the molecule's potential energy surface as it is stretched. Molecules become
stretched in many confined environments, where they are under stress, as at
a sliding interface.
Recent relevant TTU News Features on the web:
Thursday, January 24, 2008
3:30 P.M. in Sc 234
Refreshments at 3:00 in Sc 103
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