Enhanced anomalous Hall effect in kagome magnet YbMn_(6)Sn_(6)with intermediate-valence ytterbium  

作　　者：李龙飞 迟晟玮 马文龙 郭凯臻 徐刚 贾爽 Longfei Li;Shengwei Chi;Wenlong Ma;Kaizhen Guo;Gang Xu;Shuang Jia(International Center for Quantum Materials,School of Physics,Peking University,Beijing 100871,China;Wuhan National High Magnetic Field Center and School of Physics,Huazhong University of Science and Technology,Wuhan 430074,China;Interdisciplinary Institute of Light-Element Quantum Materials and Research Center for Light-Element Advanced Materials,Peking University,Beijing 100871,China;Hefei National Laboratory,Hefei 230088,China)

机构地区：[1]International Center for Quantum Materials,School of Physics,Peking University,Beijing 100871,China [2]Wuhan National High Magnetic Field Center and School of Physics,Huazhong University of Science and Technology,Wuhan 430074,China [3]Interdisciplinary Institute of Light-Element Quantum Materials and Research Center for Light-Element Advanced Materials,Peking University,Beijing 100871,China [4]Hefei National Laboratory,Hefei 230088,China

出　　处：《Chinese Physics B》2024年第5期43-50,共8页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.12141002,12225401,and 12274154);the National Key Research and Development Program of China(Grant No.2021YFA1401902);the CAS Interdisciplinary Innovation Team;the Strategic Priority Research Program of Chinese Academy of Sciences(Grant No.XDB28000000)。

摘　　要：We report on the magnetization and anomalous Hall effect(AHE)in the high-quality single crystals of the kagome magnet YbMn_(6)Sn_(6),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 RMn_(6)Sn_(6)compounds.Our band structure calculation reveals a strong hybridization between the 4f electrons of Yb and conduction electrons.

关 键 词：anomalous Hall effect kagome magnet intermediate valence 

分 类 号：O469[理学—凝聚态物理]