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| Observation of a bi-critical point between antiferromagnetic and superconducting phases in pressurized single crystal Ca0.73La0.27FeAs2 | |
| Zhou, YZ; Jiang, S; Wu, Q; Sidorov, VA; Guo, J; Yi, W; Zhang, S; Wang, Z; Wang, HH; Cai, S; Yang, K; Jiang, S; Li, AG; Ni, N; Zhang, GM; Sun, LL; Zhao, ZX | |
| 2017 | |
| 发表期刊 | SCIENCE BULLETIN
 |
| ISSN | 2095-9273 |
| 卷号 | 62期号:12页码:857-862 |
| 文章类型 | 期刊论文 |
| 摘要 | One of the most strikingly universal features of the high-temperature superconductors is that the superconducting phase emerges in the close proximity of the antiferromagnetic phase, and the interplay between these two phases poses a long-standing challenge. It is commonly believed that, as the antiferromagnetic transition temperature is continuously suppressed to zero, there appears a quantum critical point, around which the existence of antiferromagnetic fluctuation is responsible for the development of the superconductivity. In contrast to this scenario, we report the observation of a bi-critical point identified at 2.88 GPa and 26.02 K in the pressurized high-quality single crystal Ca0.73La0.27FeAs2 by complementary in-situ high pressure measurements. At the critical pressure, we find that the antiferromagnetism suddenly disappears and superconductivity simultaneously emerges at almost the same temperature, and that the external magnetic field suppresses the superconducting transition temperature but hardly affects the antiferromagnetic transition temperature. (C) 2017 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved. |
| 关键词 | High-temperature Superconductivity |
| DOI | 10.1016/j.scib.2017.05.027 |
| 关键词[WOS] | HIGH-TEMPERATURE SUPERCONDUCTIVITY |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000405586000009 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.sinap.ac.cn/handle/331007/28756 |
| 专题 | 中科院上海应用物理研究所2011-2018年 |
| 推荐引用方式 GB/T 7714 | Zhou, YZ,Jiang, S,Wu, Q,et al. Observation of a bi-critical point between antiferromagnetic and superconducting phases in pressurized single crystal Ca0.73La0.27FeAs2[J]. SCIENCE BULLETIN,2017,62(12):857-862. |
| APA | Zhou, YZ.,Jiang, S.,Wu, Q.,Sidorov, VA.,Guo, J.,...&Zhao, ZX.(2017).Observation of a bi-critical point between antiferromagnetic and superconducting phases in pressurized single crystal Ca0.73La0.27FeAs2.SCIENCE BULLETIN,62(12),857-862. |
| MLA | Zhou, YZ,et al."Observation of a bi-critical point between antiferromagnetic and superconducting phases in pressurized single crystal Ca0.73La0.27FeAs2".SCIENCE BULLETIN 62.12(2017):857-862. |
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