Topological Quantum Phases in Correlated Electron Systems with Large Spin-Orbit Coupling (E06)

具有大自旋轨道耦合的相关电子系统中的拓扑量子相 (E06)

• 批准号: 280601109
• 金额: --
• 依托单位: Felix-Bloch-Institut für Festkörperphysik
• 依托单位国家: 德国
• 项目类别: CRC/Transregios
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/280601109?language=en
• 关键词: Topological; Quantum; Phases; Correlated; Electron

Frustrated magnets with competing interactions and anisotropies can host topologically non-trivial quantum ground states and spin excitations. We seek to find and investigate model materials in the class of strongly correlated oxides with large spin-orbit coupling that will serve as experimental realizations of this intriguing physics. This includes iridate and rhodate Kitaev materials as well as Yb3+ oxides with anisotropic magnetism in the triangular geometry. The project combines crystal growth and structural characterization with thermodynamic and transport measurements under multiextreme conditions such as very low temperatures, high magnetic field and high pressure.

具有竞争相互作用和各向异性的受挫磁体可以承载拓扑上不平凡的量子基态和自旋激发。我们寻求寻找和研究具有大自旋-轨道耦合的强关联氧化物类的模型材料，这将作为这一有趣物理的实验实现。这包括Irate和Rhoate Kitaev材料以及三角形几何结构中具有各向异性磁性的Yb3+氧化物。该项目将晶体生长和结构表征与热力学和传输测量相结合，在非常低的温度、强磁场和高压等多个极端条件下进行测量。