Science / Technology - Colloquium
Wednesday, December 3, 2008
4:00 PM-5:00 PM
Olin Hall
223
Understanding the consequences of nanoscale confinement on materials functionality is one of the ``grand challenges" in the physical sciences. In this talk, I will focus on the issue of phonon confinement, discussing our recent measurements of both optical and acoustic phonons in model materials. Specific systems of interest include transition metal dichalcogenides (such as 2H- and IF-WS2) and complex oxides such as the spinels. In each case, we work with both traditional bulk analogs + chemically identical but morphologically different nanoscale materials, allowing us to quantify changes in bonding, phonon density of states, strain-induced changes in local structure, and engineering properties that derive from finite length scale effects.
Cost: FREE
Sponsored by: WPI Physics Department, Dr. Izabela Stroe
Suggested Audiences: College, Adult
E-mail:
izabela@wpi.edu
Phone: 508-831-5249
Last Modified: November 26, 2008 at 11:44 AM
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