Kagome lattice, made of corner-sharing triangles, provides an excellent platform for hosting exotic topological quantum states. Here, we systematically studied the magnetic and transport properties of RMn₆Sn₆ (R = Tb, Dy, Ho) with clean Mn kagome lattice. All the compounds have a collinear ferrimagnetic structure with different easy axis at low temperature. The low-temperature magnetoresistance (MR) is positive and has no tendency to saturate below 7 T, while the MR gradually declines and becomes negative with the increasing temperature. A large intrinsic anomalous Hall conductivity about 250, 40, and 95 Ω⁻¹ cm⁻¹ is observed for TbMn₆Sn₆, DyMn₆Sn₆, and HoMn₆Sn₆, respectively. Our results imply that RMn₆Sn₆ system is an excellent platform to discover other intimately related topological or quantum phenomena and also tune the electronic and magnetic properties in future studies.

中文翻译：

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具有清洁锰 Kagome 晶格的亚铁磁性金属 RMn6Sn6(R = Tb, Dy, Ho) 中的异常霍尔效应

由角共享三角形组成的 Kagome 晶格为托管奇异拓扑量子态提供了一个极好的平台。在这里，我们系统地研究了具有清洁 Mn kagome 晶格的 RMn ₆ Sn ₆ (R = Tb, Dy, Ho)的磁性和输运特性。所有化合物在低温下都具有共线的亚铁磁结构，具有不同的易轴。低温磁阻（MR）为正值，在7 T以下没有饱和趋势，而MR随着温度的升高逐渐下降变为负值。对于 TbMn ₆ Sn ₆、DyMn ₆ Sn观察到大约 250、40和 95 Ω ^-1  cm ^-1的大本征异常霍尔电导率₆，和HoMn ₆ Sn ₆，分别。我们的结果表明，RMn ₆ Sn ₆系统是发现其他密切相关的拓扑或量子现象以及在未来研究中调整电子和磁特性的绝佳平台。