Pressure-induced competition between superconductivity and Kondo effect in CeFeAsO1-xFx (x=0.16 and 0.3)
文献类型：期刊论文
| 作者 | Sun, LL; Dai, X; Zhang, C ; Yi, W; Chen, GF; Wang, NL; Zheng, LR; Jiang, Z; Wei, XJ; Huang, YY
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| 刊名 | EPL
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| 出版日期 | 2010 |
| 卷号 | 91期号:5页码:57008 |
| 通讯作者 | [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 |
| 英文摘要 | 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 |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000282123300029 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/240702]  |
| 专题 | 高能物理研究所_多学科研究中心 高能物理研究所_实验物理中心 高能物理研究所_加速器中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：高能物理研究所
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