北京大学量子材料科学中心

报告摘要:

In crystalline solids, the interplay between topology and interactions can lead to various exotic topological correlated states, i.e., the recently discovered fractional Chern insulators (FCIs). Graphene based topological flat-bands provide a clean and highly tunable platform to investigate these states. In this talk, I will introduce our recent experiments on the observation of FCIs in rhombohedral hexalayer graphene (RHG)/hBN moiré superlattices and unconventional Chern insulators in magic angle bilayer graphene.

Reference:

Xie et al, arXiv:2405.16944 (2024)
Feng et al, arXiv:2408. 09814 (2024)
Zhang et al, arXiv:2408.12509 (2024)

报告人简介: 

卢晓波，北京大学助理教授。2017年于物理所获得博士学位，2017-2021年先后在西班牙光子科学研究所（ICFO）与苏黎世联邦理工学院（ETH Zurich）从事博士后研究。之后加入北京大学量子材料科学中心（ICQM）工作至今。目前主要研究兴趣为石墨烯等二维材料中的关联与拓扑物态，例如分数陈绝缘与非常规超导等。

邀请人：杨威特聘研究员（82648050）