报告题目(中文):手征材料与温差电元件
报告题目(英文):Chiral Materials and Thermoelectrics
报告人姓名:Qiang Li 李强教授
报告人简介(中文):李强教授是美国能源部布鲁克海文国家实验室先进能源材料研究组组长、APS Fellow。
报告时间:2017-06-07 10:30
报告地点:上海大学宝山校区东区材料学院B楼520会议室
报告内容简介:The recent discovery of chiral materials, such as graphene, topological insulators, and Dirac/Weyl semimetals, started an ongoing revolution in key areas of Physics and Materials Science. The new materials hold promise of transmitting and processing information and energy in new ways. The powerful notion of chirality, originally discovered in high-energy physics, underpins a wide palette of new and useful behaviors in chiral materials. Many of the chiral materials originate from the thermoelectric compounds, such as Bi2Se3, PbTe, PbSe, SnSe, SnTe, and ZrTe5 having small band gaps. Some of their electronic structures display band inversion. This band inversion was calculated in 1960s. Recently, the importance of the topology of band inversion gets much attention in the study of topological phases of matter, that can lead to new quantum phenomena, for example the chiral magnetic effect in condensed matters (Q. Li et al, Nature Physics DOI: 10.1038/NPHYS3648). I will present our studies on the transport properties of chiral materials, with a view on thermoelectric applications.
报告人简介(英文):Prof. Qiang Li is a Tenured Physicist at US Department of Energy’s Brookhaven National Laboratory, New York, where he is the head of Advanced Energy Materials Group. Graduated from the University of Science and Technology of China in Hefei in 1986, he went to Iowa State University on the CUSPEA program, and received Ph. D in Physics in 1991. Later that year, he joined the Condensed Matter Physics and Materials Science Division at Brookhaven National Lab. His research interests range from basic physics and material science studies of quantum electronic materials to the applications of superconductors and thermoelectrics. He is also an adjunct professor at Stony Brook University, and an elected Fellow of American Physical Society.