Flat band of Kagome lattice in graphene plasmonic crystals

被引：4

作者：

Zhuo, Liqiang ^{[1
]}

He, Huiru ^{[1
]}

Huang, Ruimin ^{[1
]}

Li, Zhi ^{[1
]}

Qiu, Weibin ^{[1
]}

Zhuang, Fengjiang ^{[1
]}

Su, Shaojian ^{[1
]}

Lin, Zhili ^{[1
]}

Huang, Beiju ^{[2
]}

Kan, Qiang ^{[2
]}

机构：

[1] Huaqiao Univ, Coll Informat Sci & Engn, Xiamen 361021, Peoples R China

[2] Chinese Acad Sci, Inst Semicond, Beijing 100084, Peoples R China

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2022年 / 55卷 / 06期

基金：

国家重点研发计划;

关键词：

graphene plasmonic crystal; Kagome lattice; flat band; chemical potentials; HUBBARD-MODEL; GROUND-STATES; FERROMAGNETISM;

D O I：

10.1088/1361-6463/ac30fe

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We propose graphene plasmonic crystals (GPCs) with a Kagome lattice, and investigate the properties of the flat band (FB) in the plasmonic system. By modulating the arrangement of the chemical potentials, a FB is obtained. Furthermore, the authenticity of the FB is confirmed by comparing the band structures and the eigen field distributions obtained from using the tight-binding modeled Hamiltonian with numerical calculations. The proposed Kagome-type GPCs could be of great significance for the study of novel effects in strong interaction systems in the field of plasmonics.

引用

页数：6

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