The electronic structure of plutonium metal and its compounds pose a grand challenge for a fundamental understanding of the Pu-5f electron character. For 30 years the plutonium chalcogenides have been especially challenging, and multiple theoretical scenarios have been proposed to explain their unusual behavior. We present extensive high-resolution photoemission data on a single crystal of PuTe, which has also been proposed as a topological insulator. The new experimental results on this mixed-valent material provide a constraint to the theoretical modeling and new dynamical mean-field theory calculations agree with the experimental results. Comparisons with Pu metal provide new insight in understanding its complex electronic structure.
@article{arxiv.1905.01732,
title = {Competing Electronic Configurations for PuTe and New Insight on Plutonium Metal},
author = {J. J. Joyce and K. S. Graham and J. -X. Zhu and G. H. Lander and H. Choi and T. Durakiewicz and J. M. Wills and P. H. Tobash and E. D. Bauer and J. N. Mitchell},
journal= {arXiv preprint arXiv:1905.01732},
year = {2019}
}
Comments
5 pages with 4 eps figures embedded, supplementary material