Superconducting Properties and Absence of Time Reversal Symmetry Breaking in the Noncentrosymmetric Superconducting Compounds Ta x Re1 – x (0.1 ≤ x ≤ 0.25)*
| Autor: | Wei Ye, Xianglin Ke, Sen-Wei Liu, Zhixiang Shi, Jia-Jia Feng, Wei Zhou, C. Q. Xu, Pabitra-Kumar Biswas, Bin Qian, Yu-Xing Zhou, Yi Liu, Xiaofeng Xu, Hao-Bo Wang, Xuefan Jiang, Zhida Han |
|---|---|
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Chinese Physics Letters. 38:017401 |
| ISSN: | 1741-3540 0256-307X |
| DOI: | 10.1088/0256-307x/38/1/017401 |
| Popis: | Unconventional superconductivity, in particular, in noncentrosymmetric systems, has been a long-sought topic in condensed matter physics. Recently, Re-based superconductors have attracted great attention owing to the potential time-reversal symmetry breaking in their superconducting states. We report the superconducting properties of noncentrosymmetric compounds Ta x Re1 – x with 0.1 ≤ x ≤ 0.25, and find that the superconducting transition temperature reaches a maximum of ∼8 K at the optimal level x = 0.15. Nevertheless, muon-spin rotation and relaxation measurements reveal no time-reversal symmetry breaking existing in its superconducting state, which is in sharp contrast to both centrosymmetric Re metal and many other noncentrosymmetric Re-based superconductors. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|