Prediction of New Intrinsic 2D Organic Topological Insulators
Dr. Li-Zhi Zhang
Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, USA

In this report, I will introduce several families of 2D organic topological insulators (OTIs), based on first-principle density functional theory calculations. Firstly, I will talk about the construction of the 2D metal organic frameworks. Secondly, I will introduce several intrinsic 2D OTIs in the 2D π-conjugated covalent-organic frameworks. In the end, by using the electron counting and crystal field theory, I will explain the origin of the intrinsic topological properties in the 2D π-conjugated covalent-organic frameworks.

About the Speaker

Sept. 2009 - July 2013, Ph.D. in Condensed Matter Physics, Institute of Physics Chinese Academy of Sciences, China;
Sept. 2006 - July 2009, Master in Condensed Matter Physics, Graduate University of the Chinese Academy of Sciences, China;
Sept. 2002 - July 2006, Bachelor of Science in Physics, Shandong University, Jinan, China.

Research Interests:
Beyond graphene:  Structures and properties of the metal  boride and metal disulfide;
Topological insulators: 2-D organic topological insulators and topological insulators on semiconductor surfaces;
Surface adsorption:  Adsorption configuration, STM simulation, electronic, magnetic and dynamic properties;
Surface catalysis: The spatial confinement effect and surface polymerization.

2017-10-18 10:00 AM
Room: A403 Meeting Room
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