Photoemission insight into the heavy-fermion behavior in Ce0.85Yb0.15CoIn5
文献类型：期刊论文
| 作者 | Chen, QY; Ding, ZF; Zhu, ZH; Wen, CHP; Huang, YB; Dudin, P; Shu, L; Feng, DL |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2020 |
| 卷号 | 101期号:4页码:- |
| 关键词 | SUPERCONDUCTIVITY TRANSITION ITINERANT |
| ISSN号 | 2469-9950 |
| DOI | 10.1103/PhysRevB.101.045105 |
| 文献子类 | 期刊论文 |
| 英文摘要 | The energy scales in rare-earth-based heavy-fermion compounds are relatively small, which can be easily tuned by applying pressure, magnetic field, or chemical doping. By substituting Yb for Ce on the rare-earth site, the ground state of superconductivity can be smoothly suppressed without the appearance of an apparent quantum critical point, and a number of remarkable phenomena have been observed. The slight changes in the electronic structure are supposed to dominate the underlying physics in these compounds. In the present study, we provide an electronic structure study of Ce0.85Yb0.15CoIn5 with a superconducting state but suppressed transition temperature by angle-resolved photoemission spectroscopy, and the results are compared with CeCoIn5. We find that the f electrons in Ce0.85Yb0.15CoIn5 are itinerant, forming the weakly dispersive hybridized band at low temperature. More interestingly, the hybridization strength between the f electrons and conduction electrons in Ce0.85Yb0.15CoIn5 is comparable with CeCoIn5. Further temperature-dependent measurements provide direct evidence of the localized-to-itinerant crossover behavior of the 4f electrons in this compound. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/33063]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, CAS Ctr Excellence Quantum Informat & Quantum Phy, Hefei 230026, Peoples R China 2.Univ Sci & Technol China, Dept Phys, Hefei 230026, Peoples R China 3.Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China 4.Sci & Technol Surface Phys & Chem Lab, Mianyang 621908, Sichuan, Peoples R China 5.Fudan Univ, State Key Lab Surface Phys, Shanghai 200433, Peoples R China 6.Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China 7.Fudan Univ, Phys, Shanghai 200433, Peoples R China 8.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China 9.Diamond Light Source, Harwell Sci & Innovat Campus, Didcot OX11 ODE, Oxon, England |
| 推荐引用方式 GB/T 7714 | Chen, QY,Ding, ZF,Zhu, ZH,et al. Photoemission insight into the heavy-fermion behavior in Ce0.85Yb0.15CoIn5[J]. PHYSICAL REVIEW B,2020,101(4):-. |
| APA | Chen, QY.,Ding, ZF.,Zhu, ZH.,Wen, CHP.,Huang, YB.,...&Feng, DL.(2020).Photoemission insight into the heavy-fermion behavior in Ce0.85Yb0.15CoIn5.PHYSICAL REVIEW B,101(4),-. |
| MLA | Chen, QY,et al."Photoemission insight into the heavy-fermion behavior in Ce0.85Yb0.15CoIn5".PHYSICAL REVIEW B 101.4(2020):-. |
入库方式： OAI收割
来源：上海应用物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。