| Title |
New Recipes to Optimize the Niobium Oxide Surface From First-Principles Calculations |
| Authors |
- N. Sitaraman, T. Arias, Z. Baraissov, M.M. Kelley, D.A. Muller
Cornell University, Ithaca, New York, USA
- M. Liepe, R.D. Porter, Z. Sun
Cornell University (CLASSE), Cornell Laboratory for Accelerator-Based Sciences and Education, Ithaca, New York, USA
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| Abstract |
The properties of niobium oxide are of critical importance for a wide range of topics, from the behavior of nitrogen during infusion treatments, to the nucleation of Nb₃Sn, to the superconducting properties of the surface. However, the modeling of the oxide is often much simplified, ignoring the variety of niobium oxide phases and the extremely different properties of these phases in the presence of impurities and defects. We use density functional theory (DFT) to investigate how electrochemical treatments and gas infusion procedures change the properties of niobium oxide, and to investigate how these properties could be optimized for Nb₃Sn nucleation and for niobium SRF performance.
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| Funding |
This work was supported by the U.S. National Science Foundation under Award No. PHY-1549132, the Center for Bright Beams |
| Paper |
download TUPFDV010.PDF [2.539 MB / 5 pages] |
| Cite |
download ※ BibTeX
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※ EndNote |
| Conference |
SRF2021 |
| Series |
International Conference on RF Superconductivity (20th) |
| Location |
East Lansing, MI, USA |
| Date |
28 June-02 July 2021 |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editorial Board |
Kenji Saito (FRIB, MSU, East Lansing, MI, USA); Ting Xu (FRIB, MSU, East Lansing, MI, USA); Naruhiko Sakamoto (RIKEN, Wako, Japan); Ana Lesage (FRIB, MSU, East Lansing, MI, USA); Volker R.W. Schaa (GSI, Darmstadt, Germany) |
| Online ISBN |
978-3-95450-233-2 |
| Online ISSN |
2673-5504 |
| Received |
01 July 2021 |
| Accepted |
18 November 2021 |
| Issue Date |
22 February 2022 |
| DOI |
doi:10.18429/JACoW-SRF2021-TUPFDV010 |
| Pages |
426-430 |
| Copyright |
 Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |
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