Universal superconductivity phase diagram for pressurized tetradymite topological insulators
文献类型：期刊论文
| 作者 | Cai, S; Kushwaha, SK; Guo, J; Sidorov, VA; Le, CC; Zhou, YZ; Wang, HH; Lin, GC; Li, XD; Li, YC |
| 刊名 | PHYSICAL REVIEW MATERIALS
 |
| 出版日期 | 2018 |
| 卷号 | 2期号:11页码:- |
| ISSN号 | 2475-9953 |
| 关键词 | TOTAL-ENERGY CALCULATIONS HGTE QUANTUM-WELLS SINGLE DIRAC CONE WAVE BASIS-SET TRANSITIONS SURFACE BI2SE3 COMPUTATION BI2TE2SE METALS |
| DOI | 10.1103/PhysRevMaterials.2.114203 |
| 文献子类 | 期刊论文 |
| 英文摘要 | We show that two different superconducting phases exist at high pressures in the optimized tetradymite topological insulators Bi2Te2Se (BTS) and Bi1.1Sb0.9Te2S (BSTS). The superconducting phases emerge at structural phase transitions; the first at similar to 8.4 GPa for BTS and similar to 12.4 GPa for BSTS, and the second at 13.6 GPa for BTS and 20.4 GPa, for BSTS. Electronic structure calculations show that these phases do not have topological character. Comparison of our results with prior work on Bi2Se3, Bi2Te3, and (Bi, Sb)(2) (Se, Te)(3) allows us to uncover a universal phase diagram for pressure-induced superconductivity in tetradymites, providing a basis for understanding the relationships between topological behavior, crystal structure, and superconductivity for these materials. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31169]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China 3.Princeton Univ, Dept Chem, Princeton, NJ 08544 USA 4.Russian Acad Sci, Inst High Pressure Phys, Moscow 142190, Russia 5.Univ Chinese Acad Sci, Beijing 100190, Peoples R China 6.Univ Chinese Acad Sci, Kavli Inst Theoret Sci, Beijing 100049, Peoples R China 7.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 8.Chinese Acad Sci, Shanghai Synchrotron Radiat Facil, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China 9.Songshan Lake Mat Lab, Dongguan 523808, Guangdong, Peoples R China 10.LANL, Natl High Magnet Field Lab, Los Alamos, NM 87504 USA |
| 推荐引用方式 GB/T 7714 | Cai, S,Kushwaha, SK,Guo, J,et al. Universal superconductivity phase diagram for pressurized tetradymite topological insulators[J]. PHYSICAL REVIEW MATERIALS,2018,2(11):-. |
| APA | Cai, S.,Kushwaha, SK.,Guo, J.,Sidorov, VA.,Le, CC.,...&Sun, LL.(2018).Universal superconductivity phase diagram for pressurized tetradymite topological insulators.PHYSICAL REVIEW MATERIALS,2(11),-. |
| MLA | Cai, S,et al."Universal superconductivity phase diagram for pressurized tetradymite topological insulators".PHYSICAL REVIEW MATERIALS 2.11(2018):-. |
入库方式： OAI收割
来源：上海应用物理研究所
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