学术报告

6月4日物理学术论坛报告《对称破缺导致的石墨烯拓扑性质》 [2010-06-02]

报告人: 牛谦教授

报告时间:6月4日下午3:30 

报告地点:物理学院二楼学术报告厅

报告摘要:Graphene has Dirac cones in its low energy electronic spectrum characterized by three discrete degrees of freedom, the spin as well as the psudospins of sublatice and valley.  Breaking spatial and/or time reversal symmetries of this system can produce an energy gap at the Dirac points.  The resulting insulating state has extraordinary and topological properties.

组织单位: 物理学院   合肥微尺度物质科学国家实验室