报告摘要：

　　Dirac materials harbor Dirac Fermions, whose low-energy excitations are governed by the Dirac equations of relativistic quantum mechanics. Dirac materials exhibit a number of fascinating electronic and optical properties rooted in the non-trivial topology and/or geometric effects of electronic structures, with remarkable potential applications. In this talk, novel strategies for creating Dirac electronic phases on magnetic oxide heterostructures are proposed and examined based on first-principles calculations. In the first example, a genuine quantum anomalous Hall insulator is fashioned on the interface of simple oxides heterostructure, CrO2/TiO2. In the second example, proximity induced magnetic interactions are found to induce giant valley polarization in MoTe2/EuO heterostructure.

报告人简介：

　　冯济，2007年康奈尔大学博士。之后在哈佛大学和宾夕法尼亚大学从事博士后研究。于2011年加入北京大学，担任研究员、博士生导师。2013年获得自然科学基金委“优秀青年基金”。从事基于第一原理方法的材料模拟、代码开发和理论研究，目前主要关注贝里相位和拓扑电子态相关的问题。