高温超导涂层导体、涌现拓扑物质的扫描隧道显微技术、MPI和OpenMP、拓扑超导和高温超导二维材料 | 本周直播物理讲座

报告人：Dr. Jiaxin Yin, Department of Physics, Princeton University

时间：9月24日（周四）10:00

单位：中科院物理所

参加方式：讲座以线上形式进行，采用“腾讯会议”软件

会议ID：758 699 876

会议密码：0924

直播链接： 

https://meeting.tencent.com/l/juiTfkflFfSp

摘要：

The search for topological matter is evolving towards strongly interacting systems including topological magnets and superconductors, where novel effects emerge from the quantum level interplay between geometry, correlation, and topology. Equipped with unprecedented spatial resolution, electronic detection, and magnetic tunability, scanning tunneling microscopy has become an advanced tool to probe and discover the emergent topological matter. In this talk, I will review the proof-of-principle methodology to study the elusive quantum topology in this discipline, with particular attention on the studies under a vector magnetic field as the new direction, and project future perspectives in tunneling into other hitherto unknown topological matter.

报告人简介：

Dr. Jiaxin Yin is currently a Postdoctoral Researcher in Prof. Zahid Hasan's team at Princeton University, USA, and focuses on the scanning tunneling microscopy of emergent topological matter, including topological magnets and superconductors. He received his Ph.D. degree in 2016 from the Institute of Physics, CAS, under Prof. Hong Ding and Prof. Shuheng Pan. In 2015, he observed a Majorana-like zero-energy mode in an iron-based superconductor, which directly simulated later theoretical and experimental discovery of nontrivial topology in several iron-based superconductors. Recently, he developed vector magnetic field based scanning tunneling microscopy technique to discover unpredicted topological phases in several classes of magnets, including TbMn6Sn6, Fe3Sn2, Co3Sn2S2, Mn3Sn and CoSn families.

报告人：Prof. Zhenyu Zhang，the International Center for Quantum Design of Functonal Materials，University of Science and Technology of China.

时间：9月25日（周五）15:00

单位：北京大学物理学院

参会方式：蔻享直播

直播链接：https://www.koushare.com/lives/room/050429

摘要：

The recent discovery of topological insulators as a new class of quantum matter offers appealing schemes for potential definitive realization of topological superconductors and unambiguous detection of Majorang fermions. In this talk, I will attempt to give an overview on the recent advances and latest excitements in this vibrant area, with some of our own stories surrounding low-dimensional topological superconductors and even high transition temperature superconductors squeezed in. Our first focus is on systems that rely on proximity effects; here we will show that proper introduction of dilute magnetic dopants at the interfaces of topological insulators and conventional superconductors can effectively convert the systems into chiral topological superconductors.Next we shift to intrinsic systems, exploring how Rashba spin-orbit coupling and van Hove singularity could induce exotic topological phase tranisitions within the context of "correlation of correlations".Beyond such microscopic model studies, we will also use first-principles approaches to identify candidate systems that promise to materialize 2D topological superconductivity.In doing so,we will highlight the importance of interfacial growth science in guiding predictive discoveries of new high-transition-temperature superconductors and topological superconductors.

报告人简介：

报告人：武玉，中国科学院合肥物质科学研究院