Topological pz-wave nodal-line superconductivity with flat surface bands in the AH(x)Cr(3)As(3) (A= Na, K, Rb, Cs) superconductors
文献类型：期刊论文
| 作者 | Hao, Juan-Juan; Zhang, Ming; Wu, Xian-Xin; Yang, Fan3 |
| 刊名 | EPL
 |
| 出版日期 | 2022 |
| 卷号 | 138期号:6页码:66001 |
| 关键词 | K2CR3AS3 |
| ISSN号 | 0295-5075 |
| DOI | 10.1209/0295-5075/ac6622 |
| 英文摘要 | We study the pairing symmetry and the topological properties of the hydrogen-doped ACr(3)As(3) superconductors. Based on our first-principle band structure with spin-orbit coupling (SOC), we construct a tight-binding model including the on-site SOC terms, equipped with the multi-orbital Hubbard interactions. Then using the random-phase-approximation (RPA) approach, we calculate the pairing phase diagram of this model. Our RPA results yield the triplet p(z)-wave pairing in the (up down arrow +down arrow up arrow) spin channel to be the leading pairing symmetry all over the experiment relevant hydrogen-doping regimes. This pairing state belongs to the spin-U(1)symmetry-protected time-reversal-invariant topological nodal-line superconductivity. Determined by the momentum-dependent topological invariant Z(kx, ky), the whole (001) surface Brillouin zone is covered with topological flat bands with different regimes covered with different numbers of flat surface bands, which can be detected by the scanning tunneling microscope experiments. Copyright (C) 2022 The author(s) |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27894]  |
| 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 Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 2.[Hao, Juan-Juan 3.Zhang, Ming 4.Beijing Inst Technol, Sch Phys, Beijing 100081, Peoples R China 5.Max Planck Inst Festkorperforsch, Heisenbergstr 1, D-70569 Stuttgart, Germany |
| 推荐引用方式 GB/T 7714 | Hao, Juan-Juan,Zhang, Ming,Wu, Xian-Xin,et al. Topological pz-wave nodal-line superconductivity with flat surface bands in the AH(x)Cr(3)As(3) (A= Na, K, Rb, Cs) superconductors[J]. EPL,2022,138(6):66001. |
| APA | Hao, Juan-Juan,Zhang, Ming,Wu, Xian-Xin,&Yang, Fan.(2022).Topological pz-wave nodal-line superconductivity with flat surface bands in the AH(x)Cr(3)As(3) (A= Na, K, Rb, Cs) superconductors.EPL,138(6),66001. |
| MLA | Hao, Juan-Juan,et al."Topological pz-wave nodal-line superconductivity with flat surface bands in the AH(x)Cr(3)As(3) (A= Na, K, Rb, Cs) superconductors".EPL 138.6(2022):66001. |
入库方式： OAI收割
来源：理论物理研究所
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