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Short-range order and diffusion - the theory

Quasi-elastic scattering under short-range order: the linear regime and beyond

XPCS is a coherent scattering technique, it therefore measures the pair-correlation function of the electrons. Following the successful experimental realisation it became a necessity to understand the influence of short-range order on the measured linewidths/correlation times.

This paper derives the theory in the limit of vanishing interactions, and shows by way of Monte Carlo-simulations what happens with stronger interactions.

It was published in the Journal of Physics: Condensed Matter, volume 23, 254206 as part of a special issue to honour the 60th birthday of Winfried Petry. I am allowed to make a postprint of the final published version in my own formatting available here, note that the copyright is held by the Institute of Physics.
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