Uncovering the Fourier Structure of Wavefunctions in Semiconductors----关键陶瓷材料全国重点实验室

SEMINAR

The State Key Lab of High Performance Ceramics and Superfine Microstructure,

Shanghai Institute of Ceramics, Chinese Academy of Sciences

中国科学院上海硅酸盐研究所关键陶瓷材料全国重点实验室

Uncovering the Fourier Structure of Wavefunctions in Semiconductors

张绳百教授

美国伦斯勒理工学院

时间：2025 年 09 月 13 日（星期六）上午 10:00

地点：嘉定园区 F 楼 8 楼第一会议室

欢迎广大科研人员和研究生参与讨论！

联系人：孙宜阳

报告摘要:

Symmetry dictates the physical properties of materials. The symmetry of the Bravais lattice defines the set of points, lines, and planes over which sets of planewaves are degenerate, upon which atomic symmetry determines the interaction potentials which may lift such degeneracies. This results in wavefunctions which are single planewaves throughout the BZ, except in the vicinity of the removed degeneracies. As optical transitions between any two planewaves are forbidden, only regions of the Brillouin zone (BZ) near these lifted degeneracies contribute to optical properties.

主讲人简介:

Shengbai Zhang, Professor Emeritus of Rensselaer Polytechnic Institute

APPOINTMENTS

2008-2025/06/30 Professor, Rensselaer Polytechnic Institute, Troy, NY

2008-2025/06/30 Senior Kodosky Constellation Chair, Rensselaer Polytechnic Institute, Troy, NY

2000 -2007 Senior Scientist II, National Renewable Energy Laboratory, Golden, CO

1997-2000 Senior Scientist I, National Renewable Energy Laboratory, Golden, CO

1994-1997 Staff Scientist, National Renewable Energy Laboratory, Golden, CO

1991 - 1994 Research Associate, National Renewable Energy Laboratory, Golden, CO