Kargin, J;
Cornejo, HE Sanchez;
Zhangozin, K;
Zhanabergenov, T;
Kassymkhanov, Zh;
Seo, Jiwon;
Holmes, SN;
... De Los Santos Valladares, L; + view all
(2024)
Manometric Determination of the Oxygen Diffusion Coefficients in YBa2Cu3−yFeyO6+x.
Journal of Superconductivity and Novel Magnetism
10.1007/s10948-024-06796-5.
(In press).
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Abstract
Thermodynamic parameters, such as the activation energy (Ea) and the diffusion coefficient (D0), of weakly bounded oxygen in Fe-doped YBa2Cu3O6+x (YBa2Cu3-yFeyO6+x) system were obtained utilizing the Manometric technique. It is found that under isothermal conditions, oxygen desorption in YBa2Cu3O6+x (YBCO) occurs following an exponential decay trend and in two distinct stages. During the first stage, the majority of absorbed oxygen is released, while the second stage exhibits a delayed degassing kinetics. Ea and D0 were determined for both, pressed and powdered, samples of the YBCO and YBa2Cu3-yFeyO6+x systems, from experimental kinetic curves, depicting gas release P(t) under isothermal vacuum degassing conditions. It is demonstrated that doping with Fe prevents oxygen exchange in YBCO, as evidenced by the reduction in the quantity of released oxygen with increasing iron index (y). The experimental results validate the efficacy of the Manometric method for analyzing and determining the thermodynamic and kinetic properties of the YBCO superconductor.
| Type: | Article |
|---|---|
| Title: | Manometric Determination of the Oxygen Diffusion Coefficients in YBa2Cu3−yFeyO6+x |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1007/s10948-024-06796-5 |
| Publisher version: | http://dx.doi.org/10.1007/s10948-024-06796-5 |
| Language: | English |
| Additional information: | This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
| Keywords: | YBCO; Manometry of superconductors; Oxygen diffusion coefficients; Superconductors |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10194734 |
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