报告题目: Emergent Quantum Spin Liquids and Topological Magnonic Excitations in Correlated Systems
报告人:李建新 教授(南京大学物理学院)
报告时间:2017年12月7日(周四)上午10:00
报告地点:物理学院新楼5楼大报告厅
报告摘要:
The search for the exotic quantum spin phases and excitations constitutes one of the most important and hot issues in modern condensed matter physics. In this talk, I will first give a review of some quantum spin phases realized in correlated systems and their corresponding elementary excitations. Then, I will present our recent investigations on the derivation of a minimal effective spin model for α-RuCl3 and its comparison to neutron scatterings, which demonstrate the realization of the Kitaev interaction in a real material, the concept central to the Kitaev quantum spin liquid. We will also discuss the topological magnons in a one-dimensional itinerant flat-band ferromagnet, etc.
报告人简介:
李建新,南京大学物理学院教授。1993年于武汉大学获博士学位。1993.9起于南京大学历任博士后、副教授、教授。先后在台湾中研院物理研究所、美国加州大学伯克利分校从事一年的访问研究。2008年作为团队负责人获教育部创新团队。主要从事强关联电子系统、低维量子自旋系统物性以及高温超导物理的理论研究。
邀请人:刘正猷教授