Structural Determination, Unstable Antiferromagnetism and Transport Properties of Fe-Kagome Y$_{0.5}$Fe$_{3}$Sn$_{3}$ Single Crystals
Yang Liu1,2,3, Meng Lyu3, Junyan Liu3, Shen Zhang3,4, Jinying Yang3,4, Zhiwei Du5, Binbin Wang3, Hongxiang Wei3, and Enke Liu1,3*
1School of Rare Earths, University of Science and Technology of China, Hefei 230026, China 2Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341000, China 3Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China 4School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China 5Guobiao (Beijing) Testing & Certification Co., Ltd., Beijing 100088, China
Abstract：Kagome materials have been studied intensively in condensed matter physics. With rich properties, various Kagome materials emerge during this process. Here, we grew single crystals of Y$_{0.5}$Fe$_{3}$Sn$_{3}$ and confirmed an YCo$_{6}$Ge$_{6}$-type Kagome-lattice structure by detailed crystal structure characterizations. This compound bears an antiferromagnetic ordering at $T_{\rm N} = 551$ K, and shows a weak ferromagnetism at low temperatures, where an anomalous Hall effect was observed, suggesting the non-zero Berry curvature. With the unstable antiferromagnetic ground state, our systematic investigations make Y$_{0.5}$Fe$_{3}$Sn$_{3}$ a potential Kagome compound for Kagome or topological physics.
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2023, Vol. 40 
