Electronic structure of the new Ni-based superconductor KNi2Se2 | |
Lu, F ; Zhao, JZ ; Wang, WH | |
刊名 | JOURNAL OF PHYSICS-CONDENSED MATTER
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2012 | |
卷号 | 24期号:49 |
关键词 | INSULATOR |
ISSN号 | 0953-8984 |
通讯作者 | Lu, F: Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
中文摘要 | The electronic structure of the newly discovered superconductor KNi2Se2 is studied by first-principles calculations. Our results show that its ground state is a quasi-two-dimensional metal and the Fermi surface is contributed by the Ni 3d and Se 4p states. These states determine the significant physical properties of the heavy-fermion superconductor KNi2Se2, such as the heavy-fermion behavior and low superconducting transition temperature. Based on the multi-orbital character of our calculation, we suggest that KNi2Se2 may have a complicated superconducting multi-gap structure. The influence of the Coulomb interaction on the electronic structure and the 3d orbital character in this material is also investigated. |
收录类别 | SCI |
资助信息 | NSFC of China [11047162, 11104148, 50902072]; Tianjin Key Technology RD Program [11ZCKFGX0130]; Young Teachers Foundation Project from the Doctoral Fund of the Ministry of Education of China [20100031120035]; Fundamental Research Funds for the Central Universities |
语种 | 英语 |
公开日期 | 2013-09-17 |
内容类型 | 期刊论文 |
源URL | [http://ir.iphy.ac.cn/handle/311004/37192] ![]() |
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 | Lu, F,Zhao, JZ,Wang, WH. Electronic structure of the new Ni-based superconductor KNi2Se2[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2012,24(49). |
APA | Lu, F,Zhao, JZ,&Wang, WH.(2012).Electronic structure of the new Ni-based superconductor KNi2Se2.JOURNAL OF PHYSICS-CONDENSED MATTER,24(49). |
MLA | Lu, F,et al."Electronic structure of the new Ni-based superconductor KNi2Se2".JOURNAL OF PHYSICS-CONDENSED MATTER 24.49(2012). |
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