Correlation in the Al plasma excitation

P. Schattschneider () and B. Jouffrey

The European Physical Journal B: Condensed Matter and Complex Systems, 2004, vol. 37, issue 1, 3-6

Abstract: The density-density correlation function in elementary excitations of the interacting electron gas is calculated from a simple model of the dynamic form factor. For the Al plasma excitation, a correlation length of ≈0.2 nm is found. It is shown that the small correlation length does not contradict the surprisingly large coherence length of almost 10 nm recently found in inelastic interference experiments. The difference of nearly 2 orders of magnitude can be traced back to the long range Coulomb interaction between probe and target electrons. Copyright EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2004

Date: 2004
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DOI: 10.1140/epjb/e2004-00023-3

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