CAS OpenIR  > 中科院上海应用物理研究所2011-2018年
Superconductivity in pressurized Rb0.8Fe2-ySe2-xTex
Gu, DC; Wu, Q; Zhou, YZ; Gao, PW; Guo, J; Zhang, C; Zhang, S; Jiang, S; Yang, K; Li, AG; Sun, LL; Zhao, ZX; Gu, DC (reprint author), Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
2015
Source PublicationNEW JOURNAL OF PHYSICS
ISSN1367-2630
Volume17Pages:
Subtype期刊文献
AbstractWe report the finding of pressure-induced elimination and reemergence of superconductivity in Rb0.8Fe2-ySe2-xTex (x = 0, 0.19 and 0.28) superconductors that belong to the family of A-245 superconductors (A = K, Rb, TlRb and Cs), characterized by the presence of an antiferromagnetic (AFM) long-ranged order phase with the superlattice structure of Fe-cavacies. In this study, we investigate the connections between superlattice, AFM phase and superconductivity via the combined approaches of Te doping and application of external pressure. Our data reveal that the superconductivity of the ambient-pressure superconducting phase (SC-I) and the AFM long-ranged order as well as the superconductivity of the pressure-induced phase (SC-II) in the host samples can be synchronously tuned by Te doping. At x = 0.4, the SC-I and AFM long-range ordered phases as well as the SC-II phase disappear together, indicating that the two superconducting phases have intrinsic connections with the AFM phase. Furthermore, in-situ synchrotron x-ray diffraction measurements indicate that the superlattice structure in the x = 0.4 sample still exists at ambient pressure, but collapses at the same pressure where the superlattice of the superconducting samples is destructed. These results provide new insight into understanding the physics of this type of superconductors.
Language英语
WOS IDWOS:000359130600001
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/25057
Collection中科院上海应用物理研究所2011-2018年
Corresponding AuthorGu, DC (reprint author), Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Gu, DC,Wu, Q,Zhou, YZ,et al. Superconductivity in pressurized Rb0.8Fe2-ySe2-xTex[J]. NEW JOURNAL OF PHYSICS,2015,17:—.
APA Gu, DC.,Wu, Q.,Zhou, YZ.,Gao, PW.,Guo, J.,...&Gu, DC .(2015).Superconductivity in pressurized Rb0.8Fe2-ySe2-xTex.NEW JOURNAL OF PHYSICS,17,—.
MLA Gu, DC,et al."Superconductivity in pressurized Rb0.8Fe2-ySe2-xTex".NEW JOURNAL OF PHYSICS 17(2015):—.
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