报告人：张泽英 副教授 (北京化工大学)

时 间：2022年10月27日(周四)19:00-21：00

地 点：（线上）腾讯会议

会议号： 890-389-675

摘要：

We present a systematic classification of emergent particles in all 528 magnetic layer groups and 394 magnetic rod groups, which describe two-dimensional and one-dimensional crystals respectively. Our approach is via constructing a correspondence between a given magnetic layer/rod group and one of the magnetic space group, such that all irreducible representations of the layer/rod group can be derived from those of the corresponding space group. Based on these group representations, we explicitly construct the effective models for possible band degeneracies and identify all emergent particles, including both spinless and spinful cases. We find that there are six kinds of particles protected by magnetic layer groups and three kinds by magnetic rod groups. Our work provides a useful reference for the search and design of emergent particles in lower dimensional crystals.

简历：

张泽英， 2019年博士毕业于7003全讯入口7003全讯入口，毕业后入职北京化工大学，2022年5月赴新加坡科技设计大学杨声远教授课题组做Research Fellow。目前研究方向主要集中在凝聚态物理领域，尤其着重于凝聚态系统中基于对称性预言和分类新奇物态。截止目前，以第一或通讯作者在Phys. Rev. Lett., Sci. Bull., Nano Lett., Phys. Rev. B, Phys. Rev. Mater., Appl. Phys. Lett., Comput. Phys. Commun.等国际顶级期刊发表论文20余篇。

联系方式：zhangrunwu@bit.edu.cn or zhangrunwu@163.com

邀请人：张闰午

网 址：/

承办单位：物理学院、先进光电量子结构设计与测量教育部重点实验室