Abstract

The Gd₃Ru₄Al₁₂ structure type compounds, where the rare-earth magnetic ions form a breathing kagome lattice present a promising material landscape for exploring the various magnetic frustration-driven exotic states of matter. Here, we highlight the various magnetic, thermodynamic, and transport properties of several of the Gd₃Ru₄Al₁₂ structure type magnets and provide intuitive insights into their rich electronic and magnetic ground states. The realization of key properties such as spin trimerization and skyrmion textures accompanied by a large topological (geometrical) Hall effect (THE) in some of these compounds is currently at the heart of several research endeavors searching for efficient data storage and spintronic devices. Features such as helical ordering and anomalous Hall effect (AHE) arising from the formation of Berry curvature by the Weyl fermions present an open window to tuning the electron spins for several practical applications. Therefore, these compounds are projected as promising candidates for investigating several other topological phases of matter accessible through the interplay of the degree of frustration and crystal field symmetry of the rare-earth ions.

摘要

Gd ₃ Ru ₄ Al ₁₂结构类型化合物，其中稀土磁性离子形成呼吸戈戈梅晶格，为探索各种磁挫败驱动的奇异物质态提供了有前景的材料景观。在这里，我们重点介绍几种 Gd ₃ Ru ₄ Al _{12的各种磁性、热力学和输运性质}结构类型磁体，并提供对其丰富的电子和磁性基态的直观了解。在其中一些化合物中实现自旋三聚和斯格明子织构等关键特性以及大拓扑（几何）霍尔效应（THE）是目前寻找高效数据存储和自旋电子器件的多项研究工作的核心。外尔费米子形成贝里曲率所产生的螺旋排序和反常霍尔效应 (AHE) 等特征为调整电子自旋以适应多种实际应用提供了一个开放的窗口。所以，