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| Role of local structure distortion in the suppression of superconductivity for Eu3-xSrxBi2S4F4 system | |
| Cheng, J; Zhang, P; Dong, P; Wang, XF; Wang, Y; Li, X; Liu, SL; Li, YK; Xu, Z | |
| 2018 | |
| Source Publication | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| ISSN | 0925-8388 |
| Volume | 743Pages:547-552 |
| Subtype | 期刊论文 |
| Abstract | As new family of superconductors with a layered structure, BiS2-based materials have attracted much interest. Eu3Bi2S4F4 is a newly discovered member which shows superconductivity at 1.5 K without extrinsic doping, however, superconductivity is strongly suppressed by Sr-doping. In this contribution, we present, in terms of local atomic displacement, an insight into the relationship between Sr-doping and the suppression of superconductivity in Eu3-xSrxBi2S4F4 by Bi and Eu L-3-edge X-ray absorption spectroscopy. Upon Sr-doping, the distance between Eu3F4 blocking layers and BiS2 layers is significantly elongated, accompanied by the breaking of Eu-S-Bi channel, which makes it more difficult to transfer electrons into BiS2 layers. Moreover, distortions in the Bi-S-1 plane increase with Sr content, reducing the overlap among Bi(6p(x)/6p(y))-S(3p) orbitals within the superconducting plane. The decoupling between blocking and BiS2 layers, as well as the distortions in the superconducting Bi-S-1 plane, may contribute to the suppression of superconductivity in Sr-doped Eu3Bi2S4F4 compounds. (C) 2018 Elsevier B.V. All rights reserved. |
| Keyword | Ray-absorption Spectroscopy Near-edge Structure Liii-absorption Valence Eu |
| DOI | 10.1016/j.jallcom.2018.01.410 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000427511200062 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/29124 |
| Collection | 中科院上海应用物理研究所2011-2018年 |
| Affiliation | 1.Cheng, J 2.Zhang, P 3.Dong, P 4.Wang, XF 5.Wang, Y 6.Li, X 7.Liu, SL 8.Li, YK 9.Xu, Z |
| Recommended Citation GB/T 7714 | Cheng, J,Zhang, P,Dong, P,et al. Role of local structure distortion in the suppression of superconductivity for Eu3-xSrxBi2S4F4 system[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2018,743:547-552. |
| APA | Cheng, J.,Zhang, P.,Dong, P.,Wang, XF.,Wang, Y.,...&Xu, Z.(2018).Role of local structure distortion in the suppression of superconductivity for Eu3-xSrxBi2S4F4 system.JOURNAL OF ALLOYS AND COMPOUNDS,743,547-552. |
| MLA | Cheng, J,et al."Role of local structure distortion in the suppression of superconductivity for Eu3-xSrxBi2S4F4 system".JOURNAL OF ALLOYS AND COMPOUNDS 743(2018):547-552. |
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| Role of local struct（1929KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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