Abstract
We examine the degree of electron localization in using spin-orbit sum rule analysis of the U edge. When compared to metal, US, USe, and UTe, which have increasing localization of the states, we find that the states of are more localized, although not entirely. Spin-orbit analysis shows that intermediate coupling is the correct angular momentum coupling mechanism for when the electron count is between 2.6 and 2.8. These results have direct ramifications for theoretical assessment of the hidden order state of , where the degree of localization of the electrons and their contribution to the Fermi surface are critical.
- Received 20 May 2010
DOI:https://doi.org/10.1103/PhysRevB.82.033103
©2010 American Physical Society