题目：Electron correlations and superconductivity in iron pnictides and chalcogenides

报告人：斯其苗  教授

                 Rice University

时间：2015年6月16日（周二）上午10:00

地点：国家脉冲强磁场科学中心B206

报告摘要：

High temperature superconductivity in the iron-based systems has commanded much attention since its discovery seven years ago. There is by now an emerging consensus that electron correlations play an essential role in these materials. In this talk, I will discuss such effects from the perspectives of the bad-metal behavior in the normal state and, relatedly, the orbital-selective Mott physics. The connection of these properties with the magnetism and superconductivity will also be discussed.

报告人简介：

Qimiao Si is the Harry C. and Olga K. Wiess Professor of Physics and Astronomy at Rice University. He received his B.S. in Physics in 1986 from the University of Science and Technology of China, and his Ph.D. in Physics in 1991 from the University of Chicago. He did postdoctoral work at Rutgers University and University of Illinois at Urbana-Champaign. Since1995, he has been on the faculty of Rice University. During 2010-2012, he was a Changjiang Visiting Chair Professor at Zhejiang University. Since 2012, he has been a Qianren Visiting Professor at the Institute of Physics, Chinese Academy of Sciences.

Prof. Si works in the field of theoretical condensed matter physics, with a focus on strongly correlated electron systems. He is particularly well known for his contributions to the theory of quantum criticality. He introduced and developed the theory of local quantum criticality, which goes beyond the Landau framework. He has made seminal contributions to the young field of iron-based superconductors. Finally, he has contributed broadly to the physics of heavy fermion metals, high temperature cuprate superconductors, non-Fermi liquid behavior, and mesoscopic and disordered electronic systems.

Prof. Si was named a Sloan Research Fellow in 1996. He was elected a Fellow of the British Institute of Physics in 2004, the American Physical Society in 2005, and the American Association for the Advancement of Science in 2008. He received a Humboldt Prize from the Alexander von Humboldt Foundation in 2012. He has published over 160 scientific articles and has given more than 280 invited talks (including over 140 at conferences) on his research. He co-chaired a number of international conferences and workshops, including the 2007 International Conference on Strongly Correlated Electron Systems in Houston and the 2014 KITP/UC Santa Barbara Program on Magnetism, Bad Metals and Superconductivity -- Iron Pnictides and Beyond.

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