Authors:
- Selected as an outstanding contribution by the University of Vienna
- Proposes and optimizes a novel method for studying diffusion in solids
- Develops theoretical model for data interpretation
- Includes supplementary material: sn.pub/extras
Part of the book series: Springer Theses (Springer Theses)
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Table of contents (8 chapters)
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Front Matter
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Back Matter
About this book
Diffusion in solids at moderate temperatures is a well-known phenomenon. However, direct experimental evidence about the responsible atomic-scale mechanisms has been scarce, due to difficulties in probing the relevant length- and time-scales. The present thesis deals with the application of X-ray Photon Correlation Spectroscopy (XPCS) for answering such questions. This is an established method for the study of slow dynamics on length-scales of a few nanometres. The scattered intensity in the diffuse regime, i.e. corresponding to atomic distances, is very low, however, and so it has so far been considered impossible to use XPCS for this problem.
Threefold progress is reported in this work: It proposes a number of systems selected for high diffuse intensity, it optimizes the photon detection and data evaluation procedures, and it establishes theoretical models for interpretating the results. Together these advances allowed the first successful atomic-scale XPCS experiment, which elucidated the role of preferred configurations for atomic jumps in a copper-gold alloy.
The growth in available coherent X-ray intensity together with next-generation X-ray sources will open up a wide field of application for this new method.
Authors and Affiliations
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, Fakultät für Physik, Universität Wien, Wien, Austria
Michael Leitner
Bibliographic Information
Book Title: Studying Atomic Dynamics with Coherent X-rays
Authors: Michael Leitner
Series Title: Springer Theses
DOI: https://doi.org/10.1007/978-3-642-24121-5
Publisher: Springer Berlin, Heidelberg
eBook Packages: Physics and Astronomy, Physics and Astronomy (R0)
Copyright Information: Springer-Verlag Berlin Heidelberg 2012
Hardcover ISBN: 978-3-642-24120-8Published: 05 January 2012
Softcover ISBN: 978-3-642-43622-2Published: 22 February 2014
eBook ISBN: 978-3-642-24121-5Published: 05 January 2012
Series ISSN: 2190-5053
Series E-ISSN: 2190-5061
Edition Number: 1
Number of Pages: X, 98
Topics: Solid State Physics, Spectroscopy and Microscopy, Crystallography and Scattering Methods