| Pressure-induced competition between superconductivity and Kondo effect in CeFeAsO1-xFx (x=0.16 and 0.3) | |
Sun, LL; Dai, X; Zhang, C; Yi, W; Chen, GF; Wang, NL; Zheng, LR ; Jiang, Z; Wei, XJ; Huang, YY; Yang, J; Ren, ZA; Lu, W; Dong, XL; Che, GC; Wu, Q; Ding, H; Liu, J; Hu, TD; Zhao, ZX; Zheng LR(郑黎荣); Liu J(刘景); Hu TD(胡天斗)
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| 2010 | |
| Source Publication | EPL
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| Volume | 91Issue:5Pages:57008 |
| Corresponding Author | [Sun, Liling ; Dai, Xi ; Zhang, Chao ; Yi, Wei ; Chen, Genfu ; Wang, Nanlin ; Yang, Jie ; Ren, Zhian ; Lu, Wei ; Dong, Xiaoli ; Che, Guangcan ; Wu, Qi ; Ding, Hong ; Zhao, Zhongxian] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China ; [Sun, Liling ; Dai, Xi ; Zhang, Chao ; Yi, Wei ; Chen, Genfu ; Wang, Nanlin ; Yang, Jie ; Ren, Zhian ; Lu, Wei ; Dong, Xiaoli ; Che, Guangcan ; Wu, Qi ; Ding, Hong ; Zhao, Zhongxian] Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China ; [Zheng, Lirong ; Liu, Jing ; Hu, Tiandou] Chinese Acad Sci, Beijing Synchrotron Radiat Facil, Inst High Energy Phys, Beijing 100039, Peoples R China ; [Jiang, Zheng ; Wei, Xiangjun ; Huang, Yuying] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China |
| Subtype | Article |
| Abstract | We studied high-pressure behavior of CeFeAsO1-xFx superconductors with x = 0.16 and x = 0.3 by in situ measurements of electrical resistance, X-ray diffraction (XRD) and X-ray absorption spectroscopy (XAS) with diamond anvil cell (DAC). A pressure-induced quantum phase transition from the superconducting state to the non-superconducting Kondo screened phase associated with a volume collapse was discovered in the layered CeFeAsO1-xFx compounds. The XAS data of Ce-L-3 in CeFeAsO0.7F0.3 clearly show a spectral weight transfer from the main line to the satellite line after the transition, demonstrating that Ce's valence changes under high pressure. Comprehensive experimental results and analysis in this paper provide some insight into the connection among superconductivity, valence change and structural phase transition, which reveals a picture of pressure-induced competition between Kondo singlet and BCS singlet in the Ce-pnictide superconductors. Copyright (C) EPLA, 2010 |
| Subject Area | Physics |
| DOI | 10.1209/0295-5075/91/57008 |
| URL | 查看原文 |
| Indexed By | SCI ; ADS |
| Language | 英语 |
| WOS Research Area | Physics |
| WOS Subject | Physics, Multidisciplinary |
| WOS ID | WOS:000282123300029 |
| ADS Bibcode | 2010EL.....9157008S |
| ADS URL | https://ui.adsabs.harvard.edu/abs/2010EL.....9157008S |
| ADS CITATIONS | https://ui.adsabs.harvard.edu/abs/2010EL.....9157008S/citations |
| Citation statistics |
Cited Times:16 [ADS]
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| Document Type | 期刊论文 |
| Identifier | http://ir.ihep.ac.cn/handle/311005/240702 |
| Collection | 多学科研究中心 实验物理中心 加速器中心 |
| Affiliation | 中国科学院高能物理研究所 |
| First Author Affilication | Institute of High Energy |
| Recommended Citation GB/T 7714 | Sun, LL,Dai, X,Zhang, C,et al. Pressure-induced competition between superconductivity and Kondo effect in CeFeAsO1-xFx (x=0.16 and 0.3)[J]. EPL,2010,91(5):57008. |
| APA | Sun, LL.,Dai, X.,Zhang, C.,Yi, W.,Chen, GF.,...&胡天斗.(2010).Pressure-induced competition between superconductivity and Kondo effect in CeFeAsO1-xFx (x=0.16 and 0.3).EPL,91(5),57008. |
| MLA | Sun, LL,et al."Pressure-induced competition between superconductivity and Kondo effect in CeFeAsO1-xFx (x=0.16 and 0.3)".EPL 91.5(2010):57008. |
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