First-Principles Study of Hole-Doped Superconductors RNiO2 (R = Nd, La, and Pr)
文献类型：期刊论文
| 作者 | Hao, Juan-Juan; Sun, Pei-Han; Zhang, Ming; Wu, Xian-Xin; Liu, Kai5,5; Yang, Fan3 |
| 刊名 | CHINESE PHYSICS LETTERS
 |
| 出版日期 | 2022 |
| 卷号 | 39期号:6页码:67402 |
| ISSN号 | 0256-307X |
| 关键词 | STATE |
| DOI | 10.1088/0256-307X/39/6/067402 |
| 英文摘要 | Recent experiments have found that in contrast to the nonsuperconducting bulk RNiO2 (R = Nd, La, and Pr), the strontium-doped R 1 - x Sr x NiO 2 thin films show superconductivity with the critical temperature T (c) of 9-15 K at x = 0.2, whose origin of superconductivity deserves further investigation. Based on first-principles calculations, we study the electronic structure, lattice dynamics, and electron-phonon coupling (EPC) of the undoped and doped RNiO2 (R = Nd, La, and Pr) at the experimental doping level. Our results show that the EPC-derived T (c)'s are all about 0 K in the undoped and doped RNiO2. The electron-phonon coupling strength is too small to account for the observed superconductivity. We hence propose that the electron-phonon interaction can not be the exclusive origin of the superconductivity in RNiO2 (R = Nd, La, and Pr). |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27753]  |
| 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.Max Planck Inst Festkorperforsch, Heisenbergstr 1, D-70569 Stuttgart, Germany 2.[Hao, Juan-Juan 3.Zhang, Ming 4.Beijing Inst Technol, Sch Phys, Beijing 100081, Peoples R China 5.[Sun, Pei-Han 6.Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China 7.Renmin Univ China, Beijing Key Lab Optoelect Funct Mat & Micronano D, Beijing 100872, Peoples R China 8.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hao, Juan-Juan,Sun, Pei-Han,Zhang, Ming,et al. First-Principles Study of Hole-Doped Superconductors RNiO2 (R = Nd, La, and Pr)[J]. CHINESE PHYSICS LETTERS,2022,39(6):67402. |
| APA | Hao, Juan-Juan,Sun, Pei-Han,Zhang, Ming,Wu, Xian-Xin,Liu, Kai,&Yang, Fan.(2022).First-Principles Study of Hole-Doped Superconductors RNiO2 (R = Nd, La, and Pr).CHINESE PHYSICS LETTERS,39(6),67402. |
| MLA | Hao, Juan-Juan,et al."First-Principles Study of Hole-Doped Superconductors RNiO2 (R = Nd, La, and Pr)".CHINESE PHYSICS LETTERS 39.6(2022):67402. |
入库方式： OAI收割
来源：理论物理研究所
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