Universal superconductivity phase diagram for pressurized tetradymite topological insulators
文献类型：期刊论文
| 作者 | Cai, Shu; Guo, Jing ; Sidorov, Vladimir A.; Le, Congcong; Zhou, Yazhou; Wang, Honghong; Li YC(李延春); Li XD(李晓东); Sun, Liling; Cava, Robert J.
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| 刊名 | PHYSICAL REVIEW MATERIALS
 |
| 出版日期 | 2018 |
| 卷号 | 2期号:11页码:114203 |
| ISSN号 | 2475-9953 |
| DOI | 10.1103/PhysRevMaterials.2.114203 |
| 文献子类 | Article |
| 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. |
| WOS关键词 | TOTAL-ENERGY CALCULATIONS ; HGTE QUANTUM-WELLS ; SINGLE DIRAC CONE ; WAVE BASIS-SET ; TRANSITIONS ; SURFACE ; BI2SE3 ; COMPUTATION ; BI2TE2SE ; METALS |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000450573200003 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286946]  |
| 专题 | 高能物理研究所_核技术应用研究中心 高能物理研究所_多学科研究中心 |
| 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 | Cai, Shu,Guo, Jing,Sidorov, Vladimir A.,et al. Universal superconductivity phase diagram for pressurized tetradymite topological insulators[J]. PHYSICAL REVIEW MATERIALS,2018,2(11):114203. |
| APA | Cai, Shu.,Guo, Jing.,Sidorov, Vladimir A..,Le, Congcong.,Zhou, Yazhou.,...&Kushwaha, S. K..(2018).Universal superconductivity phase diagram for pressurized tetradymite topological insulators.PHYSICAL REVIEW MATERIALS,2(11),114203. |
| MLA | Cai, Shu,et al."Universal superconductivity phase diagram for pressurized tetradymite topological insulators".PHYSICAL REVIEW MATERIALS 2.11(2018):114203. |
入库方式： OAI收割
来源：高能物理研究所
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