Itinerant electrons on frustrated lattices (A03)

该项目旨在通过主要使用数值方法对具有巡回电荷载流子的受抑磁系统进行基本了解，特别是识别和预测拓扑非平凡状态的存在。与待研究的问题相关的模型哈密顿量，也捕捉了感兴趣的材料的基本低能物理性质，大致分为两类：描述与局域自旋相互作用的巡回电子的近藤晶格模型以及（多轨道）哈伯德型模型，其中电子具有部分巡回和部分局域特性。

The project aims at a fundamental understanding of frustrated magnetic systems that have itinerant charge carriers, in particular to identify and predict the presence of topologically nontrivial states, by using primarily numerical methods. The model Hamiltonians relevant to the questions to be investigated, which also capture the essential low-energy physical properties of materials of interest, broadly fall into two classes: Kondo-lattice models describing itinerant electrons that interact with localized spins as well as (multi-orbital) Hubbard-type models where electrons have partly itinerant and partly localized character.