【大学频道】北京大学量子材料科学中心呈献 | Yonglong Xie of Princeton University
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图 | Yonglong Xie
题 目：Visualizing topological and correlated phases with a scanning tunneling microscope报告人：Yonglong Xie单 位：Princeton University时 间：2019-06-25地 点：北京大学
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报告摘要
Topology and correlation, fundamental ingredients that often dictate the ground states of quantum matter, leave distinct local electronic fingerprints that can be detected with scanning tunneling microscopy. In this talk, I will first describe a series of experiments demonstrating how the combined influence of magnetism and superconductivity on the one- dimensional helical hinge channel of a higher- order topological insulator can give rise to a Majorana zero mode. Second, I will discuss unusual spectroscopic characteristics found on magic angle twisted bilayer graphene over a wide range of carrier densities, including where superconductivity has been reported to emerge, and how these correlated features allow us to establish a more concrete connection between MATBG and high-Tc cuprates beyond the phenomenological resemblance of their transport phase diagrams.
个人简介
Yonglong Xie was an elève normalien étranger at Ecole Normale Supérieure where he earned his Bachelor’s and Master’s degrees. He has been a PhD candidate at Princeton University working in Prof. Ali Yazdani’s lab since 2013. His graduate research focuses on topological superconductivity and Majorana zero modes. More recently, he is also interested in 2D heterostructures such as twisted bilayer graphene.
● 北京大学量子材料科学中心呈献 | 佛罗里达大学张晓光教授：Multi-phonon processes in solids from first-principles● 北京大学量子材料科学中心呈献 | 中国科学技术大学翟晓芳研究员：Complex oxide thin films and heterostructures for novel physics and applications● 北京大学量子材料科学中心呈献 | Michael S. Fuhrer：Topological materials for low-energy electronics● 北京大学量子材料科学中心呈献 | 李卫东：Geometric property of Quantum States and its application on Entanglement Criteria● 北京大学量子材料科学中心呈献 | 吴留锁：Neutron Scattering and Spinon Excitations in Perovskite Quantum Magnet YbAIO₃● 北京大学量子材料科学中心呈献 | 翁红明：Prediction of Topological Materials: from physical intuition to routinely search
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