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Testing the Fundamental Theories of Surface Dynamics

Published online by Cambridge University Press:  31 January 2011

N. C. Bartelt
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Abstract

The following article is based on the MRS Medal talk by Norm Bartelt (Sandia National Laboratories, California), presented at the 2001 Materials Research Society Fall Meeting on November 29 in Boston. Bartelt received the Medal for his “contributions to the statistical mechanics of materials surfaces.” A long-standing goal of materials science research has been to predict the long-term evolution of the microstructure of materials from a knowledge of atomic processes. This is usually extremely difficult to do in any detail because of the large number of atomic processes to consider, many of which are poorly understood. On solid surfaces, however, progress in the prediction of microstructural evolution can now be made because of advances in real-time microscopy that allow the characterization of the time evolution of microstructure in unprecedented detail. These observations directly reveal the complex relationships between collective thermal fluctuations on atomic scales and deterministic behavior on macroscopic scales. In this presentation, attempts to construct models of these observations are discussed.

Keywords

alloysatomic diffusionlow-energy electron microscopy (LEEM)transmission electron microscopy (TEM)scanning tunneling microscopy (STM)surface chemistry.
Type
Research Article
Information
MRS Bulletin , Volume 27 , Issue 12 , December 2002 , pp. 961 - 966
Copyright
Copyright © Materials Research Society 2002

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