Pressure-induced irreversible evolution of superconductivity in PdBi2
文献类型：期刊论文
| 作者 | Zhou, Y; Chen, XL; An, C; Zhou, YH; Ling, LS; Yang, JY; Chen, CH; Zhang, LL; Tian, ML; Zhang, ZT |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2019 |
| 卷号 | 99期号:5页码:— |
| 关键词 | CRITICAL FIELD |
| ISSN号 | 2469-9950 |
| DOI | 10.1103/PhysRevB.99.054501 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Both alpha-PdBi2 and beta-PdBi2 are superconductors with topological nontrivial signs. Here we report that the alpha-PdBi2 superconductor is converted by pressure into the beta-phase superconducting polymorph, with the superconductivity being further enhanced upon decompression. Through high-pressure resistance and synchrotron x-ray-diffraction experiments, we show that the alpha phase transforms into the beta phase at P-c similar to 8 GPa, above which the superconductivity is robust up to the maximum pressure investigated in this work. More interestingly, when the applied pressure is gradually released from 42.9 down to 1.7 GPa, the T-c increases monotonously from 2.5 to 4.0 K. We argue that the observed unusual evolution of superconductivity can be explained by combination of pressure-manipulated crystal quality and the pressure dependence of T-c of the beta-PdBi2 superconductor. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31770]  |
| 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, Anhui Prov Key Lab Condensed Matter Phys Extreme, High Field Magnet Lab, Hefei 230031, Anhui, Peoples R China; 2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China; 3.Anhui Univ, Inst Phys Sci & Informat Technol, Hefei 230601, Anhui, Peoples R China; 4.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China; 5.Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Y,Chen, XL,An, C,et al. Pressure-induced irreversible evolution of superconductivity in PdBi2[J]. PHYSICAL REVIEW B,2019,99(5):—. |
| APA | Zhou, Y.,Chen, XL.,An, C.,Zhou, YH.,Ling, LS.,...&Yang, ZR.(2019).Pressure-induced irreversible evolution of superconductivity in PdBi2.PHYSICAL REVIEW B,99(5),—. |
| MLA | Zhou, Y,et al."Pressure-induced irreversible evolution of superconductivity in PdBi2".PHYSICAL REVIEW B 99.5(2019):—. |
入库方式： OAI收割
来源：上海应用物理研究所
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