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Published November 2005 | public
Journal Article

Ultrafast Electron Diffraction: Dynamical Structures on Complex Energy Landscapes


In this contribution, we report studies in ultrafast electron diffraction (UED), with the aim of exploring new directions. The main focus is on the determination of complex structures and their dynamics with spatial and temporal resolutions sufficient to give an atomic-scale picture for the evolution in chemical or biological change. We also provide the theoretical framework for UED, and compare the experimental findings of UED to those predicted by density functional and charge density calculations. Selected applications are given in order to highlight phenomena related to concepts such as bifurcation of trajectories in dynamics, far-from-equilibrium coherent structures, and conformational robustness in biological structures. For the former two cases, we consider chemical systems, and, for the latter, we examine proteins of 200 atoms (angiotensin I) or more.

Additional Information

© 2005 Wiley-VCH Verlag GmbH & Co. Received: June 23, 2005. Version of Record online: 7 Nov 2005. This work was sponsored by the National Science Foundation and AFOSR. D.S. wishes to thank Prof. A. Haaland and the authors of the KCED program[39] (Oslo, Norway) for providing access to computer facilities of the University of Oslo, and Prof. W. Scherer (Augsburg, Germany) for providing access to computer facilities of the Chemical Physics and Materials Science department of the University of Augsburg. A helpful discussion with Dr. J. S. Baskin (Pasadena, CA) and Dr. M. Tafipolsky (Bochum, Germany) is acknowledged with pleasure and gratitude.

Additional details

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October 20, 2023