Cobalt-Dimer Nitrides: A Potential Novel Family of High-Temperature Superconductors
文献类型：期刊论文
| 作者 | Gu, Yuhao4; Jiang, Kun1,4; Wu, Xianxin5; Hu, Jiangping3,4 |
| 刊名 | CHINESE PHYSICS LETTERS
 |
| 出版日期 | 2022 |
| 卷号 | 39期号:9页码:97401 |
| ISSN号 | 0256-307X |
| 关键词 | WAVE |
| DOI | 10.1088/0256-307X/39/9/097401 |
| 英文摘要 | We predict that the square lattice layer formed by [Co2N2](2-) diamond-like units can host high-temperature superconductivity. The layer appears in the stable ternary cobalt nitride, BaCo2N2. The electronic physics of the material stems from Co2N2 layers where the dimerized Co pairs form a square lattice. The low energy physics near Fermi energy can be described by an effective two-orbital model. Without considering interlayer couplings, the two orbitals are effectively decoupled. This electronic structure satisfies the gene character proposed for unconventional high-temperature superconductors. We predict that the leading superconducting pairing instability is driven from an extended s-wave (s (+/-)) to a d-wave by hole doping, e.g., in Ba1-x K x Co2N2. This study provides a new platform to establish the superconducting mechanism of unconventional high-temperature superconductivity. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27697]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Kavli Inst Theoret Sci, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China 5.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gu, Yuhao,Jiang, Kun,Wu, Xianxin,et al. Cobalt-Dimer Nitrides: A Potential Novel Family of High-Temperature Superconductors[J]. CHINESE PHYSICS LETTERS,2022,39(9):97401. |
| APA | Gu, Yuhao,Jiang, Kun,Wu, Xianxin,&Hu, Jiangping.(2022).Cobalt-Dimer Nitrides: A Potential Novel Family of High-Temperature Superconductors.CHINESE PHYSICS LETTERS,39(9),97401. |
| MLA | Gu, Yuhao,et al."Cobalt-Dimer Nitrides: A Potential Novel Family of High-Temperature Superconductors".CHINESE PHYSICS LETTERS 39.9(2022):97401. |
入库方式： OAI收割
来源：理论物理研究所
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