Anomalous Hall effect and electronic correlation in a spin-reoriented kagome antiferromagnet LuFe6Sn6

吕孟 ¹刘洋 ²张伸 ³刘俊艳 ¹杨金颖 ²王一博 ²冯乙婷 ²董学斌 ²王彬彬 ¹魏红祥 ¹刘恩克²

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作者信息

1. Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China
2. Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China
3. Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;Ningbo Institute of Materials Technology & Engineering,Chinese Academy of Sciences,Ningbo 315201,China
折叠

Abstract

The kagome lattice system has been identified as a fertile ground for the emergence of a number of new quantum states,including superconductivity,quantum spin liquids,and topological electronic states.This has attracted significant interest within the field of condensed matter physics.Here,we present the observation of an anomalous Hall effect in an iron-based kagome antiferromagnet LuFe6Sn6,which implies a non-zero Berry curvature in this compound.By means of extensive magnetic measurements,a high Neel temperature,TN=552 K,and a spin reorientation behavior were identified and a simple temperature-field phase diagram was constructed.Furthermore,this compound was found to exhibit a large Sommerfeld coefficient of γ=87 mJ·mol-1·K-2,suggesting the presence of a strong electronic correlation effect.Our research indicates that LuFe6Sn6 is an intriguing compound that may exhibit magnetism,strong correlation,and topological states.

Key words

kagome lattice/anomalous Hall effect/magnetism/electronic correlation

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基金项目

National Key Research and Development Program of China(2022YFA1403400)

National Key Research and Development Program of China(2019YFA0704900)

National Key Research and Development Program of China(2022YFA1403800)

Fundamental Science Center of the National Natural Science Foundation of China(52088101)

National Natural Science Foundation of China(11974394)

National Natural Science Foundation of China(12174426)

Strategic Priority Research Program(B)of the Chinese Academy of Sciences(CAS)(XDB33000000)

CAS Project for Young Scientists in Basic Research(YSBR-057)

Synergetic Extreme Condition User Facility(Grant No.SECUF)()

Scientific Instrument Developing Project of CAS(ZDKYYQ20210003)

出版年

2024

中国物理B(英文版)

中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI

影响因子：0.995

ISSN：1674-1056

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