氧气压力对钛基 HTS 的相形成和超导特性的影响

Pub Date : 2024-01-11 DOI:10.1063/10.0023889

D. L. Surmanidze, T. E. Lobzhanidze, I. R. Metskhvarishvili, G. N. Dgebuadze, V. M. Gabunia, B. G. Bendeliani, M. R. Metskhvarishvili, D. A. Jishiashvili

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引用次数: 0

摘要

铊基高温超导体具有卓越的超导性能（Tc、Jc）。铊基超导材料的形成关键取决于所使用的前驱体和合成条件。在本研究中，我们采用原位聚合法合成了高纯度、反应性好的前驱体。我们发现钛基超导体相的形成与外加氧压的大小有临界关系。实验结果表明，在氧气压力为 1 至 2 个大气压时形成 Tl-1223 相，在 3 个大气压时形成 Tl-2223 相，在 4 至 8 个大气压时形成 Tl-2212 相。

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The effect of O2 pressure on phase formation and superconductivity properties of Tl-based HTS

Thallium-based high-temperature superconductors exhibit excellent superconductivity performance (Tc, Jc). Formation of the Tl-based superconducting materials critically depends on the used precursor and synthesis conditions. In the present investigation, we used the in situ polymerization method for synthesizing high-purity and reaction-ability precursors. We find the critical dependence of Tl-based superconductor phase formation on the quantity of applied oxygen pressure. The experimental results showed that the Tl-1223 phase formed at an oxygen gas pressure at 1 to 2 atm, Tl-2223 phase at 3 atm, and Tl-2212 phase at 4 to 8 atm.

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