The quantum anomalous Hall effect (QAHE) exhibits an insulating bulk state with quantized edge transport within the band gap. However, in practical materials, the temperature at which quantized transport is observed in the QAHE is consistently lower than the band gap. Investigations into quantum transport theory offer new perspectives to these issues. In this talk, I will provide an overview of the transport theory of the QAHE, and then demonstrate that plateau transitions in the QAHE exhibit its characteristic topological properties. Next, I will introduce a Berry curvature splitting mechanism that facilitates the realization of the quantum anomalous phase. Additionally, I will discuss our exploration of the quantum anomalous layer Hall effect in magnetic topological insulator multilayers.

报告人简介

陈垂针，苏州大学教授，2015年毕业于中国科学院物理研究所获得博土学位，2015-2018年在香港科技大学从事博士后研究工作。2019年至今在苏州大学任教授。陈垂针教授从事凝聚态理论研究，主要研究方向为：电子输运理论和无序诱导安德森局域化等。在Physical Review Letters, Physical Review B等期刊发表上述方向研究论文30余篇。

邀请人

吴贤新 副研究员