摘要
Cl-doped Fe(Se, Te)superconductors were fabricated through a melting method followed by hydrostatic pressure (HP)post treatment. A dual coordination effect has been aroused, viz. the introduction of Cl− ions triggered the nucleation and growth of nanometric point-like secondary phase as extra pinning centers, while HP strengthened the pinning competence of these point defects. As a result, the superconducting phase volume, critical temperature, and critical current density have been improved by 12.2%, 42.3%, and nearly 100 times, respectively, compared with the undoped sample without HP.
源语言 | 英语 |
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页(从-至) | 19-22 |
页数 | 4 |
期刊 | Scripta Materialia |
卷 | 169 |
DOI | |
出版状态 | 已出版 - 8月 2019 |
已对外发布 | 是 |