报告题目：Single crystal growth and transport studies on square-net-based topological semimetals 

报告时间：2022年10月21日 下午 15:30 – 16:30 

报告地点：线上报告（会议号：908-615-774）

报告人：王爱峰 研究员（重庆大学）

报告摘要：Topological materials have attracted much attention due to their novel quantum phenomena and physical properties as well as potential applications. Layered AFM 112 manganese pnictides family with Bi/Sb square nets, AMnPn2 (A = Ca, Sr, Ba, Eu, or Yb, Pn = Sb or Bi), plays an important role in the topological semimetal investigation. It is theoretically predicted that the Bi/Sb square net could host Dirac dispersion, and was experimentally confirmed on SrMnBi2-related materials. In this talk, I first give a short introduction about the topological semimetals in square net and single crystal growth methods. Then I will give a detailed introduction about our recent works, including 1) New topological semimetal exploration based on the Bi/Sb square net. 2) The anisotropic transport study on square-net-based topological semimetal, and the discovery of a record-breaking anisotropy magnetoresistance (AMR) with the maximum value of 2.3×104 at 2 K in semiconducting EuMnSb2. 2) We study the interplay between magnetic order and band topology in square-net-based topological semimetal. At last, I will introduce our available single crystals and welcome for collaboration.

报告人简介：王爱峰，重庆大学物理学院研究员。于2014年博士毕业于中国科学技术大学物理系，随后在美国布鲁克海文国家实验室从事博士后研究，2018年11月通过重庆大学“百人计划”引进。主要从事凝聚态物理中量子材料的单晶生长和相关输运性质研究，主要研究对象包括铁基超导体；狄拉克半金属/外尔半金属等拓扑材料。发表SCI文章70多篇，引用2200多次，单篇最高引用300多次，H因子30。