报告题目：Novel States Predicted by Symmetry

报 告  人：余智明 教授（海外优青） 北京理工大学

研究方向：计算凝聚态物理

报告时间：2023年4月11日（星期二）下午16:00

报告地点：量子楼410

报告摘要：

of intense research in condensed matter physics, as they exhibit fundamentally new physical properties and have potential applications for novel devices. Symmetry plays a crucial role in predicting new topological and valleytronic states and the interesting phenomena associated with these new states. In this talk, I will briefly introduce our recent works on the prediction of novel states by crystalline symmetry, including a complete classification of emergent particles in three dimensions, valleytronics materials with valley-layer coupling and novel Weyl-point states in nonmagnetic crystals.

References:

1: Zhi-Ming Yu, Zeying Zhang, Gui-Bin Liu, Weikang Wu, Xiao-Ping Li, Run-Wu Zhang, Shengyuan A. Yang, and Yugui Yao, Encyclopedia of emergent particles in three-dimensional crystals, Science Bulletin 67, 375 (2022).

2: Zhi-Ming Yu, Shan Guan, Xian-Lei Sheng, Weibo Gao, and Shengyuan A. Yang, Valley-Layer Coupling: A New Design Principle for Valleytronics Phys. Rev. Lett. 124, 037701 (2020).

3: Xiaotian Wang, Feng Zhou, Zeying Zhang, Weikang Wu, Zhi-Ming Yu, and Shengyuan A. Yang, Single Pair of Weyl Points in Nonmagnetic Crystals, Phys. Rev. B. 106, 195129 (2022).

4: Xiaotian Wang, Feng Zhou, Zeying Zhang, Zhi-Ming Yu and Yugui Yao, Hourglass charge-three Weyl phonons, Phys. Rev. B. 106, 214309 (2022).

报告人简介：

余智明，北京理工大学物理学院准聘教授、海外优青。2002-2006年就读于华中科技大学应用物理学系。2008-2014年就读于中国人民大学物理学系，导师为刘玉良教授，研究方向为凝聚态理论物理，获博士学位。2014-2016年在北京理工大学物理学院从事博士后工作，合作导师为姚裕贵教授。2016-2019年在新加坡科技设计大学继续从事博士后工作，合作导师为杨声远教授。2019年入职北京理工大学物理学院，为准聘教授。目前的研究方向包括拓扑物态，低维材料和纳米结构的物理性质，自旋和能谷电子学，量子输运等。