Angle-resolved photoemission spectroscopy study on transition-metal kagome materials  

作　　者：Jiangang Yang Jianwei Huang Lin Zhao X.J.Zhou 杨鉴刚;黄建伟;赵林;周兴江

机构地区：[1]Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China [2]School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China [3]Songshan Lake Materials Laboratory,Dongguan 523808,China

出　　处：《Chinese Physics B》2025年第4期29-45,共17页中国物理B(英文版)

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.12488201,12074411,12374066,12374154,and 12494593);the National Key Research and Development Program of China(Grant No.2022YFA1403900,2021YFA1401800,2022YFA1604200,2023YFA1406002,2024YFA1408301,and 2024YFA1400026);the Strategic Priority Research Program(B)of the Chinese Academy of Sciences(Grant Nos.XDB25000000 and XDB33000000);the Innovation Program for Quantum Science and Technology(Grant No.2021ZD0301800);the Youth Innovation Promotion Association of CAS(Grant No.Y2021006);Synergetic Extreme Condition User Facility(SECUF).

摘　　要：Angle-resolved photoemission spectroscopy(ARPES)has become a cornerstone technique for elucidating the electronic structures of emergent quantum materials.Among these,kagome materials—distinguished by their two-dimensional lattice of corner-sharing triangles—provide a fertile ground for investigating exotic quantum phenomena,driven by geometric frustration,electronic correlation,and topology.In this review,we present an overview of recent ARPES studies on transition-metal kagome materials.We first outline the fundamental features of their electronic structures,including van Hove singularities,Dirac points,and flat bands,and discuss the novel quantum states that arise from many-body interactions within the kagome lattice.We then highlight key ARPES investigations into these unique electronic structures,detailing their manifestation and associated quantum states in representative kagome materials.Finally,we offer a forward-looking perspective on the potential of ARPES to uncover new quantum phenomena and its broader implications for the study of underlying physics in kagome materials.

关 键 词：kagome materials angle-resolved photoemission spectroscopy electron correlation electronic topology 

分 类 号：O469[理学—凝聚态物理]