Spectrum of the Hole Excitation in Spin-Orbit Mott Insulator Na_(2)IrO_(3)
作者机构：School of ScienceNanjing University of Posts and TelecommunicationsNanjing 210023China Department of Applied PhysicsNanjing University of Science and TechnologyNanjing 210094China National Laboratory of Solid State Microstructures and Department of PhysicsNanjing UniversityNanjing 210093China Collaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210093China
出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)
年 卷 期：2023年第40卷第8期
页 面：63-67页
核心收录：
学科分类：07[理学] 070205[理学-凝聚态物理] 0702[理学-物理学]
基 金：supported by the National Key Projects for Research and Development of China(Grant No.2021YFA1400400) the National Natural Science Foundation of China(Grant Nos.12004191,92165205,12074175) the Natural Science Foundation of Jiangsu Province(Grant No.BK20200738) the Natural Science Research Start-up Foundation of Posts and Telecommunications(Grant No.NY220095)
主 题：dispersion spectra qualitative
摘 要：We study the motion of a hole with internal degrees of freedom,introduced to the zigzag magnetic ground state of Na_(2)IrO_(3),by using the self-consistent Born *** find that the low-,intermediate-,and high-energy spectra are primarily attributed to the singlet,triplet,and quintet hole contributions,*** spectral functions exhibit distinct features such as the electron-like dispersion of low-energy states near the L point,the maximum M-point intensity of mid-energy states,and the hole-like dispersion of high-energy *** features are robust and almost insensitive to the exchange model and Hund s coupling,and are in qualitative agreement with the angular-resolved photoemission spectra observed in Na_(2)IrO_(3).Our results reveal that the interference between internal degrees of freedom in different sublattices plays an important role in inducing the complex dispersions.
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