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2002 NSLS Users' Meeting

EXAFS Studies of Nanoscale and Nanostructured Materials

Physics Department, Bldg. 510, Large Seminar Room

Monday, May 20, 2002

Organizer: Vincent Harris, Naval Research Lab, 202-767-6249

In recent years the evolution of nanoscience and technologies has taken the scientific community by storm. Reports of advances in nanotechnology routinely appear in the mainstream press and are touted by public officials as examples of the success of government investments in science and technology. X-ray absorption fine structure is a technique that is ideally suited to describe and address the nanoscale properties of these materials. This workshop is designed to highlight the successful use of XAFS in the study of biological, chemical, and physical systems that are defined by their length scales as nanomaterials. In addition, it is anticipated that obstacles to a complete characterization and understanding of these systems will emerge revealing opportunities for a greater role of XAFS and synchrotron radiation techniques in the understanding of nanomaterials.

9:00 a.m. Vincent Harris, Naval Research Lab, "Introductory Remarks"
9:15 a.m. Anatoly Frenkel, Yeshiva University, "DAFS Study of Annealed Germanium Nanoclusters Embedded in Amorphous Germanium Matrix"
10:00 a.m. Coffee Break
10:20 a.m. Scott Calvin, Naval Research Lab, "EXAFS Analysis of Nanoparticles and Core/shell Nanostructures"
11:10 a.m. Ken Kemner, Argonne National Lab., "Investigations of Nanoparticles Formed Via Biogeochemical Interactions"
11:55 a.m. Lunch
1:20 p.m. Josef Hormes, Louisiana State Uni. "Nanoparticles Are Different: EXAFS/XANES to Determine the Electronic and Geometric Structure of Metallic Nanoparticles "
2:10 p.m. Maria Grazia Proietti, University of Zaragoza, "Grazing Incidence Diffraction Anomalous Fine Structure of Inas/Inp Self-Assembles Quantum Wires"
2:55 p.m. Coffee Break
3:15 p.m. Robert Schloegl, Fritz-Harber-Institut der Max-Planck-Gesselchaft, "In-situ Time Resolved EXAFS of Structural Phase Transformations in Molybates"