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Title: Covalency in Oxidized Uranium

Abstract

Using X-­-ray Emission Spectroscopy (XES) and Absorption Spectroscopy (XAS), it has been possible to directly access the states in the unoccupied conduction bands that are involved with 5f and 6d covalency in oxidized Uranium. By varying the oxidizing agent, the degree of 5f covalency can be manipulated and monitored, for the first time clearly and irrevocably establishing the importance of 5f covalency in the electronic structure of the key nuclear fuel, uranium dioxide.

Authors:
 [1];  [1];  [2];  [2];  [3];  [4];  [5];  [6];  [7];  [6]
  1. Lawrence Livermore National Laboratory
  2. Lawrence Berkeley National Lab
  3. Lawrence Berkeley National Laboratory
  4. Lawrence Berkley National Laboratory
  5. BATTELLE (PACIFIC NW LAB)
  6. Stanford University
  7. SLAC National Accelerator Laboratory
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1514259
Report Number(s):
PNNL-SA-112204
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
Physical Review. B, Condensed Matter
Additional Journal Information:
Journal Volume: 92; Journal Issue: 4
Country of Publication:
United States
Language:
English

Citation Formats

Tobin, James G., Yu, S W., Qiao, R, Yang, W L., Booth, C H., Shuh, D K., Duffin, Andrew M., Sokaras, Dimosthenis, Nordlund, Dennis, and Weng, Tsu-Chien. Covalency in Oxidized Uranium. United States: N. p., 2015. Web. doi:10.1103/PhysRevB.92.045130.
Tobin, James G., Yu, S W., Qiao, R, Yang, W L., Booth, C H., Shuh, D K., Duffin, Andrew M., Sokaras, Dimosthenis, Nordlund, Dennis, & Weng, Tsu-Chien. Covalency in Oxidized Uranium. United States. doi:10.1103/PhysRevB.92.045130.
Tobin, James G., Yu, S W., Qiao, R, Yang, W L., Booth, C H., Shuh, D K., Duffin, Andrew M., Sokaras, Dimosthenis, Nordlund, Dennis, and Weng, Tsu-Chien. Wed . "Covalency in Oxidized Uranium". United States. doi:10.1103/PhysRevB.92.045130.
@article{osti_1514259,
title = {Covalency in Oxidized Uranium},
author = {Tobin, James G. and Yu, S W. and Qiao, R and Yang, W L. and Booth, C H. and Shuh, D K. and Duffin, Andrew M. and Sokaras, Dimosthenis and Nordlund, Dennis and Weng, Tsu-Chien},
abstractNote = {Using X-­-ray Emission Spectroscopy (XES) and Absorption Spectroscopy (XAS), it has been possible to directly access the states in the unoccupied conduction bands that are involved with 5f and 6d covalency in oxidized Uranium. By varying the oxidizing agent, the degree of 5f covalency can be manipulated and monitored, for the first time clearly and irrevocably establishing the importance of 5f covalency in the electronic structure of the key nuclear fuel, uranium dioxide.},
doi = {10.1103/PhysRevB.92.045130},
journal = {Physical Review. B, Condensed Matter},
number = 4,
volume = 92,
place = {United States},
year = {2015},
month = {7}
}

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