| 报告题目 | Unconventional superconductivity: Hydrocarbon superconductors |
| 报告人 | Prof. Xianhui Chen |
| 报告人单位 | HFNL and Department of Physics,USTC |
| 报告时间 | 2013-01-28 |
| 报告地点 | 合肥微尺度物质科学国家实验室9004会议室 |
| 主办单位 | 合肥微尺度物质科学国家实验室 |
| 报告介绍 | 报告摘要：
At the beginning of talk, I shall briefly summarize the unconventional superconducting matrials and their common features, including heavy formion, cuprates, organics, iron pnictides and selenides. Then I shall talk about the newly discovered carbonhydron superconductors : alkali-, alkali earth and rare earth metals doped phenanthrene, and give you experimental evidences on possible unconventional superconductivity in such organic superconductors. In our recent work, we have determined the superconducting phase and its crystalline structure for above mentioned new organic superconductor. Especially, we have achieved 100% shielding fraction in Ba1.5-Phenanthrene, indicating a model system for studying the intrinsic physical properties and superconductivity mechanism in these organic π-molecular materials. Superconducting pairing symmetry have been studied in this compound, which shows evidence on s-wave gap. Furthermore, we also measured pressure-dependent magnetic susceptibility and crystalline structure, which could be understood in terms of pressure tuned electron correlations, signaling the unconventional nature of superconductivity in these hydrocarbon superconductors. 报告人简介：
Prof. Xianhui Chen obtained his Ph.D. in Physics from University of Science and Technology of China in 1992. In the same year he started his career of research in USTC and now works as professor in physics. He was supported by National Science Fund for Distinguished Young Scholars of China in 1998. He was employed as “Chair Professor of Chang Jiang Scholars Program” in 2003. His research is focused on the exploration and studies on physics of the novel functional materials which show superconductivity, novel magnetism, thermoelectricity, etc. He has published more than 270 papers, including 3 in Nature, 1 in Nat. Mater., 2 in Nat. Phys., 1 in Nature Commun., 3 in JACS and 26 in PRL. These articles were cited over 6000 times. During his research tenure, he has received many prestigious awards, including Chang Jiang Scholars Achievement Award (2009), Outstanding Science &Technology Team Achievement Award (2009), Ye Qisun Physics Prize (2008-2009), and so on. |
