The Time Domain in Surface and Structural Dynamics

About two years ago, while studying the dynamic properties of Fe (CO)IJ ,we realized that there 3 was virtually no single source of infonnation on the structural dynamics of materials. The time domain of different dynamic structural processes covers many orders of magnitude and may be in­ vestigated by numerous, vastly different, experimental techniques. Indeed, the subject seemed ap­ propriate for a NATO Advanced Study Institute at which we could bring together chemists, physicists, metallurgists, and bioscientists using the various techniques for the study of sundry time sensitive materials. The actual Advanced Study Institute, which met in II Ciocco, Italy, from 14 to 26 June 1987, was, in fact, a dynamic experience for those of us involved. Now we have come to the final phase, the communication of the results of this Advanced Study Institute to the general scientific community. In so doing, we hope to provide in one place a convenient source of infor­ mation on dynamics at the surface and within a solid state material. The beautiful mountainous setting of Tuscany and especially the idyllic surroundings of II Ciocco provided an ideal venue for the Advanced Study Institute. Our field trip to Pisa linked our topic to the history of time measurement through a visit to the Pisa cathedral where, presumably, Galileo first conceived the isochronism of the simple pendulum and its use in time measurement.

Inhalt

1. Timescales of Physical Measurements: Some Elementary Considerations.- 2. Time: Its History and Measurement. Billions of Years Within a Nanosecond.- 3. Galileo, His Life in Pisa and His Scientific Instruments.- 4. Time Domain NMR and Magic Angle Spinning.- 5. Chemical, Molecular and Spin Dynamics.- 6. Effects of Molecular Motions on NMR Parameters of Solid State Spectra.- 7. Deuterium NMR Studies of Dynamics in Solids.- 8. Protein Dynamics and the Time Domain.- 9. Domain Motions in Proteins.- 10. Quasi-elastic and Inelastic Neutron Scattering.- 11. Probing Structural Dynamics by Very High Resolution Neutron Three Axis Spin Echo Spectroscopy.- 12. Dynamic Processes as Followed by Electron Paramagnetic Resonance.- 13. The Time Domain in Intramolecular Electron Transfer Reactions.- 14. Dynamics of Interionic Electron Transfer.- 15. Mossbauer Spectroscopy and its Application to Studies of Time-dependent Phenomena.- 16. Mossbauer Spectral Lineshapes in the Presence of Electronic State Relaxation.- 17. Mossbauer Spectroscopy Studies of Relaxation Phenomena in Ultrafine Particles.- 18. Mossbauer Spectroscopy Studies of Paramagnetic Relaxation.- 19. Competition between Deloalization and Crystallization for Electrons in the Low-temperature Modification of the Mixed-valence Iron Oxyphosphate, beta-Fe2P05.- 20. Electron Transfer in CaFe305.- 21. Time Differential Perturbed Angular Correlation Studies of Dynamic Systems.- 22. Muon Spin Relaxation: A Novel Magnetic Resonance Technique to Study Dynamic and Static Magnetism.- 23. Magnetic Dynamics in Oxides, As Observed by Muon Spin Relaxation.- 24. Magnetic Susceptibility Studies of Time-dependent Phenomena: Application to the Magnetic Relaxation Processes in Fine Particles and in Spin-glasses.- 25. Muon Spin Research on Spin-glasses.- 26. Adsorption Studies Using Low Energy Electron Diffraction.- 27. Neutron Scattering Studies of the Structure, Phase Transitions, and Dynamics of Commensurate Herringbone Monolayers Physisorbed on Graphite.- 28. Non-bonded Intermolecular Interactions and their Modification in the Presence of a Surface.- 29. Timescale Considerations in the Characterization of Melting and Freezing in Microclusters.- Author index.