2017-10-19
报告题目: |
Emerging Opportunities in Two-dimensional Material Research |
报告人: |
张远波 |
报告人单位: |
复旦大学 |
报告时间: |
2017年10月19日 星期四 16:00 |
报告地点: |
科技楼北410会议室 |
报告摘要: |
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Two-dimensional (2D) atomic crystals, best exemplified by graphene, have emerged as a new class of material that may impact future science and technology. The reduced dimensionality in these 2D crystals invariably leads to novel material properties that are vastly different from that in the bulk. Meanwhile, the exposed surface makes 2D material susceptible to external perturbations such as electric field and strain. In this talk I will discuss new opportunities arising from such distinct advantages of 2D materials. In particular, I will talk about two 2D materials that we found particularly interesting – black phosphorus and 1T-TaS2. These two layered materials have vastly different properties. Black phosphorus is a 2D semiconductor, and its superior material quality has recently enabled us to observe the quantum Hall effect. 1T-TaS2, on the other hand, is a metal with a rich set of charge density wave phases. We explore their electronic properties while the doping and dimensionality of the 2D systems are modulated. |
报告人简介: |
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张远波,1978年7月生,2000年获北京大学学士学位。2000年8月赴美国哥伦比亚大学物理系,于2006年获博士学位。同年获美国加州大学伯克利分校为期三年的Miller Fellowship,从事博士后研究。2011年起为复旦特聘教授,博士生导师。研究方向为低维纳米体系,特别是石墨烯的电学和光学研究。在量子输运,扫描隧道显微和能谱技术,以及远红外能谱领域积累了丰富的研究经验。获得“求是”杰出青年学者奖(2013),上海市东方学者(2012),IUPAP Young Scientist Prize (IUPAP, 2010), Charles H. Townes Fellowship(Columbia University, 2005),Miller Fellowship Award(UC Berkeley,2006)等奖项。 |