Thursday, June 21, 2007, 1:30 pm — Small Seminar Room, Bldg. 510
Resonant Ultrasound Spectroscopy (RUS) and the study of Zero and Negative-Volume-Expansion materials
I will be giving a brief overview of the Resonant Ultrasound Spectroscopy (RUS) technique and its capabilities. The technique is used to determine the temperature and field dependence of all components of the elastic tensor. I will also be discussing our RUS study of the NVE oxide ZrW2O8 in which we confirmed the existence of the high-density-of-states, low frequency optical phonons responsible for the NVE behavior. I will also talk about the ZVE intermetallic YbGaGe and conclude by drawing comparisons between the two dissimilar structures and discussing RUS applications for the study of other classes of materials such as thermoelectrics.
Hosted by: Cedomir Petrovic
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