Anisotropically large anomalous and topological Hall effect in a kagome magnet,Physical Review B

当前位置： X-MOL 学术 › Phys. Rev. B › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Anisotropically large anomalous and topological Hall effect in a kagome magnet
Physical Review B ( IF 3.2 ) Pub Date : 2021-10-26 , DOI: 10.1103/physrevb.104.l161115
Gyanendra Dhakal ₁ , Fairoja Cheenicode Kabeer ₂ , Arjun K. Pathak ₃ , Firoza Kabir ₁ , Narayan Poudel ₄ , Randall Filippone ₃ , Jacob Casey ₃ , Anup Pradhan Sakhya ₁ , Sabin Regmi ₁ , Christopher Sims ₁ , Klauss Dimitri ₁ , Pietro Manfrinetti _{5,

6} , Krzysztof Gofryk ₄ , Peter M. Oppeneer ₂ , Madhab Neupane ₁

Affiliation

Recently, kagome materials have become an engrossing platform to study the interplay among symmetry, magnetism, topology, and electron correlation. The latest works on

R {Mn}_{6} {Sn}_{6}

(

R

= rare-earth metal) compounds have illustrated that this family could be intriguing to investigate various physical phenomena due to large spin-orbit coupling and strong magnetic ordering. However, combined transport and spectroscopic studies in

R {Mn}_{6} {Sn}_{6}

materials are still limited. Here, we report magnetic, magnetotransport, and angle-resolved photoemission spectroscopy measurements of a kagome magnet

{ErMn}_{6} {Sn}_{6}

that undergoes antiferromagnetic (

T_{N} = 345 K

) to ferrimagnetic (

T_{C} = 68 K

) phase transitions in the presence of a field. We observe large anomalous and topological Hall effects serving as transport signatures of the nontrivial Berry curvature. The isothermal magnetization exhibits strong anisotropic nature and the topological Hall effect of the compound depends on the critical field of metamagnetic transition. Our spectroscopic results complemented by theoretical calculations show the multiorbital kagome fermiology. This Letter provides new insight into the tunability and interplay of topology and magnetism in a kagome magnet.

中文翻译：

Kagome 磁体中各向异性大的异常拓扑霍尔效应

最近，kagome 材料已成为研究对称性、磁性、拓扑和电子相关性之间相互作用的一个引人入胜的平台。最新作品

电阻 锰_{6} 锡_{6}

(

电阻

=稀土金属）化合物表明，由于大的自旋轨道耦合和强磁排序，该家族可能对研究各种物理现象很有吸引力。然而，联合输运和光谱研究

电阻 锰_{6} 锡_{6}

材料还是有限的。在这里，我们报告了 Kagome 磁体的磁性、磁传输和角度分辨光电子能谱测量

锰_{6} 锡_{6}

经历反铁磁性（

吨_{N} = 345 钾

) 到亚铁磁性 (

吨_{C} = 68 钾

) 存在场时的相变。我们观察到大的异常和拓扑霍尔效应作为非平凡 Berry 曲率的传输特征。等温磁化表现出很强的各向异性，化合物的拓扑霍尔效应取决于变磁跃迁的临界场。我们的光谱结果辅以理论计算显示了多轨道 kagome 费米学。这封信为 Kagome 磁铁中拓扑和磁性的可调性和相互作用提供了新的见解。

更新日期：2021-10-26

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11