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Can anyone suggest a reference in which I can find the Fourier coefficients of the pseudopotential of gold?

I cannot find them anywhere in literature.

I need them to compute the role of plasmon decay in the production of secondary electrons in gold as suggested in this paper for aluminum.

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As far as I can understand, the pseudopotential should be used in connection with the nearly free electron (NFE) approximation.

A preliminar warning is that, while NFE approximation works well with the alkali metals and reasonably well with most of the s-p bonded metallic systems, application to $d-$electrons metals somewhat transcends the reasonable limits of applicability of the theory.

Nevertheless, in the 70's a lot of work have been done to derive good quality pseudopotentials that could be used in connection with NFE theory.

A possible reference is J. A. Moriarty, Pseudopotential Form Factors for Copper, Silver, and Gold, Phys. Rev. B 1, 1363 (1970).

The paper follows the generalization of pseudopotential method introduced by Harrison. In the paper, values of the pseudopotential form factors at densities of liquid and solid gold have been calculated.

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