March 31, 2003 FRONTIERS IN MATERIALS SCIENCE
VINSE COLLOQUIUM SERIES
Dr. Carl Thompson
Stavros Salapatas Professor of Materials Science and Engineering
M.I.T.
"Stress and Structure Evolution During Film Formation; Adatoms to Nano-clusters to Films" Abstract. Deposited thin films, and wires and other features patterned from them, are used in a wide variety of micro- and nano-systems. We have developed new methods for making high-sensitivity measurements of the forces and stresses associated with structure evolution as a thin film forms through adsorption and clustering of adatoms, followed by cluster impingement and coalescence. These methods have been used in real-time in-situ studies of nano-scale structure evolution, and experimental results have been correlated with atomistic modeling to determine the forces that govern nano-scale evolution of materials deposited on substrates. |
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