Anomalous properties in the normal and superconducting states of LaRu3Si2
文献类型：期刊论文
| 作者 | Li, S ; Zeng, B ; Wan, XG ; Tao, J ; Han, F ; Yang, H ; Wang, ZH ; Wen, HH |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2011 |
| 卷号 | 84期号:21 |
| 关键词 | QUANTUM PHASE-TRANSITIONS TEMPERATURE SPECIFIC-HEAT SYSTEM |
| ISSN号 | 1098-0121 |
| 通讯作者 | Li, S: Nanjing Univ, Natl Lab Solid State Microstruct, Ctr Superconducting Phys & Mat, Nanjing 210093, Jiangsu, Peoples R China. |
| 中文摘要 | Superconductivity in LaRu3Si2 with the Kagome lattice of Ru has been investigated. It is found that the normal-state specific heat C/T exhibits a deviation from the Debye model down to the lowest temperature. This may be induced by the existence of some high-frequency phonon modes or by the electron correlation effect. A relation C/T = gamma(n) + beta T-2 - AT lnT which concerns the electron correlations can fit the data very well. The suppression to the superconductivity by the magnetic field is not the mean-field type, which is associated well with the observation of strong superconducting fluctuations. The field dependence of the induced quasiparticle density of states measured by the low-temperature specific heat shows a nonlinear feature, indicating the significant contributions given by the delocalized quasiparticles. The Wilson ratio determined for this material is about 2.88, indicating also a strong correlation effect. |
| 收录类别 | SCI |
| 资助信息 | NSF of China; Ministry of Science and Technology of China [2011CBA00102]; Chinese Academy of Sciences |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/33873]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Li, S,Zeng, B,Wan, XG,et al. Anomalous properties in the normal and superconducting states of LaRu3Si2[J]. PHYSICAL REVIEW B,2011,84(21). |
| APA | Li, S.,Zeng, B.,Wan, XG.,Tao, J.,Han, F.,...&Wen, HH.(2011).Anomalous properties in the normal and superconducting states of LaRu3Si2.PHYSICAL REVIEW B,84(21). |
| MLA | Li, S,et al."Anomalous properties in the normal and superconducting states of LaRu3Si2".PHYSICAL REVIEW B 84.21(2011). |
入库方式： OAI收割
来源：物理研究所
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