| Superconductivity with a Violation of Pauli Limit and Evidences for Multigap in η-Carbide Type Ti4Ir2O |
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| 引用本文： | 阮彬彬,周孟虎,杨清松,谷亚东,马明伟,陈根富,任治安.Superconductivity with a Violation of Pauli Limit and Evidences for Multigap in η-Carbide Type Ti4Ir2O[J].中国物理快报,2022(2):86-97. |
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| 作者姓名： | 阮彬彬 周孟虎 杨清松 谷亚东 马明伟 陈根富 任治安 |
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| 作者单位： | 1. Songshan Lake Materials Laboratory;2. Institute of Physics and Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences;3. School of Physical Sciences, University of Chinese Academy of Sciences |
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| 基金项目： | supported by the National Natural Science Foundation of China (Grant Nos. 12074414 and 11774402)；;the National Key Research and Development of China (Grant No. 2018YFA0704200)； |
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| 摘 要： | We report the synthesis, crystal structure, and superconductivity of Ti4Ir2O. The title compound crystallizes in an η-carbide type structure of the space group Fd3m（No. 227）, with lattice parameters a=b=c=11.6194（1） ?. The superconducting temperature Tc is found to be 5.1–5.7 K. Most surprisingly, Ti4Ir2O hosts an upper critical field of 16.45 T, which is far beyond the Pauli paramagnetic limit. Strong coupled superconductivity with evidence...
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