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Zhou, S; Wang, YP; Wang, ZQ; Zhou, S (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
Doublon-holon binding, Mott transition, and fractionalized antiferromagnet in the Hubbard model
Source PublicationPHYSICAL REVIEW B
Language英语
KeywordNarrow Energy-bands Functional-integral Approach Correlated Fermi Systems Mean-field Theory Electron Correlations Gutzwiller Approximation Anderson Model Monte-carlo Doped V2o3 Liquid
AbstractWe argue that the binding between doubly occupied (doublon) and empty (holon) sites governs incoherent excitations and plays a key role in the Mott transition in strongly correlated Mott-Hubbard systems. We construct a new saddle-point solution with doublon-holon binding in the Kotliar-Ruckenstein slave-boson functional integral formulation of the Hubbard model. On a half-filled honeycomb lattice and square lattice, the ground state is found to exhibit a continuous transition from a paramagnetic semimetal/metal to an antiferromagnetic-ordered Slater insulator with coherent quasiparticles at U-cl, followed by a Mott transition into an electron-fractionalized AF* phase without coherent excitations at U-c2. Such a phase structure appears to be generic for bipartite lattices without frustration. We show that doublon-holon binding unites the three important ideas of strong correlation: coherent quasiparticles, incoherent Hubbard bands, and deconfined Mott insulator.
2014
ISSN1098-0121
Volume89Issue:19Pages:195119
Subject AreaPhysics
DOI10.1103/PhysRevB.89.195119
Indexed BySCI
Funding OrganizationDOE [DE-FG02-99ER45747, DE-SC0002554]; Thousand Youth Talents Plan of China ; DOE [DE-FG02-99ER45747, DE-SC0002554]; Thousand Youth Talents Plan of China ; DOE [DE-FG02-99ER45747, DE-SC0002554]; Thousand Youth Talents Plan of China ; DOE [DE-FG02-99ER45747, DE-SC0002554]; Thousand Youth Talents Plan of China
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Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15760
Collection理论物理所科研产出_SCI论文
Corresponding AuthorZhou, S (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Zhou, S,Wang, YP,Wang, ZQ,et al. Doublon-holon binding, Mott transition, and fractionalized antiferromagnet in the Hubbard model[J]. PHYSICAL REVIEW B,2014,89(19):195119.
APA Zhou, S,Wang, YP,Wang, ZQ,&Zhou, S .(2014).Doublon-holon binding, Mott transition, and fractionalized antiferromagnet in the Hubbard model.PHYSICAL REVIEW B,89(19),195119.
MLA Zhou, S,et al."Doublon-holon binding, Mott transition, and fractionalized antiferromagnet in the Hubbard model".PHYSICAL REVIEW B 89.19(2014):195119.
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