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Theory of Photoemission in Actinides

Published online by Cambridge University Press:  01 February 2011

Axel Svane
Axel Svane*
Affiliation:
[email protected], University of Aarhus, Department of Physics and Astronomy, Ny Munkegade, bygn. 1520, Aarhus C, DK 8000, Denmark, +45 8942 3678, +45 8612 0740
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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.

Keywords

actinidephotoemissionelectronic structure
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1104: Symposium NN – Actinides 2008—Basic Science, Applications and Technology , 2008 , 1104-NN02-05
Copyright
Copyright © Materials Research Society 2008

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