Enhanced anomalous Hall effect in kagome magnet YbMn6Sn6 with intermediate-valence ytterbium

Author:

Li 李 Longfei 龙飞,Chi 迟 Shengwei 晟玮,Ma 马 Wenlong 文龙,Guo 郭 Kaizhen 凯臻,Xu 徐 Gang 刚,Jia 贾 Shuang 爽

Abstract

We report on the magnetization and anomalous Hall effect (AHE) in the high-quality single crystals of the kagome magnet YbMn6Sn6, where the spins of the Mn atoms in the kagome lattice order ferromagnetically and the intermediate-valence Yb atoms are nonmagnetic. The intrinsic mechanism plays a crucial role in the AHE, leading to an enhanced anomalous Hall conductivity (AHC) compared with the other rare-earth RMn6Sn6 compounds. Our band structure calculation reveals a strong hybridization between the 4f electrons of Yb and conduction electrons.

Publisher

IOP Publishing

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