CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
Re-emerging superconductivity at 48 kelvin in iron chalcogenides
Sun, LL; Chen, XJ; Guo, J; Gao, PW; Huang, QZ; Wang, HD; Fang, MH; Chen, XL; Chen, GF; Wu, Q; Zhang, C; Gu, DC; Dong, XL; Wang, L; Yang, K(杨舸); Li, AG(李爱国); Dai, X; Mao, HK; Zhao, ZX
2012
Source PublicationNATURE
ISSN0028-0836
Volume483Issue:7387
AbstractPressure has an essential role in the production(1) and control(2,3) of superconductivity in iron-based superconductors. Substitution of a large cation by a smaller rare-earth ion to simulate the pressure effect has raised the superconducting transition temperature T-c to a record high of 55 K in these materials(4,5). In the same way as T-c exhibits a bell-shaped curve of dependence on chemical doping, pressure-tuned T-c typically drops monotonically after passing the optimal pressure(1-3). Here we report that in the superconducting iron chalcogenides, a second superconducting phase suddenly re-emerges above 11.5 GPa, after the T-c drops from the first maximum of 32 K at 1 GPa. The T-c of the re-emerging superconducting phase is considerably higher than the first maximum, reaching 48.0-48.7 K for Tl0.6Rb0.4Fe1.67Se2, K0.8Fe1.7Se2 and K0.8Fe1.78Se2.
Language英语
Funding Project应物所项目组
WOS IDWOS:000300877900045
Citation statistics
Cited Times:222[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13280
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Sun, LL,Chen, XJ,Guo, J,et al. Re-emerging superconductivity at 48 kelvin in iron chalcogenides[J]. NATURE,2012,483(7387).
APA Sun, LL.,Chen, XJ.,Guo, J.,Gao, PW.,Huang, QZ.,...&Zhao, ZX.(2012).Re-emerging superconductivity at 48 kelvin in iron chalcogenides.NATURE,483(7387).
MLA Sun, LL,et al."Re-emerging superconductivity at 48 kelvin in iron chalcogenides".NATURE 483.7387(2012).
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