Abstract
Using x-ray emission spectroscopy and absorption spectroscopy, it has been possible to directly access the states in the unoccupied conduction bands that are involved with and covalency in oxidized uranium. By varying the oxidizing agent, the degree of covalency can be manipulated and monitored, clearly and irrevocably establishing the importance of covalency in the electronic structure of the key nuclear fuel, uranium dioxide.
- Received 15 April 2015
DOI:https://doi.org/10.1103/PhysRevB.92.045130
©2015 American Physical Society