Superconductivity and topological properties in the kagome metals CsM3 Te5 (M =Ti, Zr, Hf): A first-principles investigation
文献类型：期刊论文
| 作者 | Si, Jian-Guo,; Shi, Lan-Ting,; Liu, Peng-Fei,; Zhang, Ping,; Wang, Bao-Tian,,, |
| 刊名 | Physical Review B
 |
| 出版日期 | 2022 |
| 卷号 | 106期号:21页码:214527 |
| ISSN号 | 24699950 |
| DOI | 10.1103/PhysRevB.106.214527 |
| 文献子类 | Article |
| 英文摘要 | Inspired by the discovery and fascinating properties of kagome metals AV3Sb5 (A= K, Rb, Cs), we investigate the superconductivity and topological properties of the AV3Sb5-prototype kagome materials CsM3Te5 (M=Ti, Zr, Hf) using first-principles calculations. The calculated results of formation energy and phonon dispersion indicate that this family of kagome materials are stable and may be synthesized in experiments. By analytically solving the Allen-Dynes-modified McMillan formula, the superconducting critical temperatures for CsTi3Te5, CsZr3Te5, and CsHf3Te5 are predicted as 8.02, 5.47, and 3.51 K, respectively. The electron-phonon couplings are dominated by the coupling between the in-plane atomic vibrational modes and the in-plane electronic orbitals. In addition, the CsZr3Te5 and CsHf3Te5 can be categorized as Z2 topological metals according to the calculations of topological invariant and surface states. Such coexistence of superconductivity and nontrivial topological properties in CsZr3Te5 and CsHf3Te5 are beneficial to study the interaction between superconductivity and nontrivial band character. © 2022 American Physical Society. |
| 电子版国际标准刊号 | 24699969 |
| 语种 | 英语 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/300126]  |
| 专题 | 高能物理研究所_东莞分部 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Si, Jian-Guo,,Shi, Lan-Ting,,Liu, Peng-Fei,,et al. Superconductivity and topological properties in the kagome metals CsM3 Te5 (M =Ti, Zr, Hf): A first-principles investigation[J]. Physical Review B,2022,106(21):214527. |
| APA | Si, Jian-Guo,,Shi, Lan-Ting,,Liu, Peng-Fei,,Zhang, Ping,,&Wang, Bao-Tian,,,.(2022).Superconductivity and topological properties in the kagome metals CsM3 Te5 (M =Ti, Zr, Hf): A first-principles investigation.Physical Review B,106(21),214527. |
| MLA | Si, Jian-Guo,,et al."Superconductivity and topological properties in the kagome metals CsM3 Te5 (M =Ti, Zr, Hf): A first-principles investigation".Physical Review B 106.21(2022):214527. |
入库方式： OAI收割
来源：高能物理研究所
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