题  目：Disorder, Quantum phase transition and Topological states in correlated electron systems

报告人：陈华博士 北京大学量子材料中心

时  间：10月24日（星期五）下午4：30

地  点：理科二号楼B409

报告摘要：Impurity and disorder effects as a useful probe of the pairing symmetry are well recognized in cuprates. In this talk, I will discuss the disorder effects of nonmagnetic Zn impurities in the strong (unitary) scattering limit on various properties of the system in the s± -wave superconducting pairing state and the relavence with recent experiments on Zn-doped 122-type iron pnictides. In the second part, I will also discuss the quantum phase transition of a magnetic (Anderson) impurity embedded  in a d-wave superconductor carrying a supercurrent. Finally, the fractional topological insulator-superfluid phase transition will be discussed in the context of quantum Hall liquid.
 

报告人简介：陈华，1985年10月生。2008年浙江大学物理系毕业，2014获浙江大学物理系理论物理博士学位。2011-2012在美国波士顿学院访问学习。现为北京大学量子材料中心博士后。博士期间共合作发表8篇Phys. Rev. B。主要研究兴趣为强关联电子系统。

Host: Dr. Juntao Song

Email: jtsong@hebtu.edu.cn