Theory of Photoemission in Actinides

Abstract

A theory is presented which describes the photoemission spectra of actinide compounds starting from the atomic limit of isolated actinide ions. The multiplets of the ion are calculated and an additional term is introduced to describe the interaction with the sea of conduction electrons. This leads to complex mixed-valent ground states, which describes well the rich spectrum observed for PuSe. In particular, the three-peak feature, which is often seen in Pu and Pu compounds in the vicinity of the Fermi level originates from f6 → f5 emission. The theory is further applied to PuSb, PuCoGa5 and Am.

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Correspondence to Axel Svane.

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Svane, A. Theory of Photoemission in Actinides. MRS Online Proceedings Library 1104, 205 (2008). https://doi.org/10.1557/PROC-1104-NN02-05

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