报告题目：Berry phase of Bloch electrons and materials properties

报 告 人：Ji Feng (冯济)， Peking University

报告时间：2017-10-19 16:00

报告地点：理科楼郑裕彤讲堂

报告摘要：

Berry phase and associated physical effects have attracted broad attention in recent years, particularly in condensed matter physics. In this colloquium, I will begin with an exposition of the concept of Berry phase in Bloch electrons in extended solids, highlighting various materials properties derivable from Berry phase and with an emphasis on the computational aspects. Subsequently, a few examples will be discussed to demonstrate materials prediction and discovery centering on the notion of Berry phase, including valleytronics materials, quantum anomalous Hall effect and particularly our recent progress on the theory of impurity states in semiconductors.