Doublon-holon binding, Mott transition, and fractionalized antiferromagnet in the Hubbard model
文献类型：期刊论文
| 作者 | Zhou, S ; Wang, YP; Wang, ZQ
|
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2014 |
| 卷号 | 89期号:19页码:195119 |
| 关键词 | NARROW ENERGY-BANDS FUNCTIONAL-INTEGRAL APPROACH CORRELATED FERMI SYSTEMS MEAN-FIELD THEORY ELECTRON CORRELATIONS GUTZWILLER APPROXIMATION ANDERSON MODEL MONTE-CARLO DOPED V2O3 LIQUID |
| ISSN号 | 1098-0121 |
| 通讯作者 | Zhou, S (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China. |
| 英文摘要 | We 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. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | DOE [DE-FG02-99ER45747, DE-SC0002554]; Thousand Youth Talents Plan of China |
| 原文出处 | http://dx.doi.org/10.1103/PhysRevB.89.195119 |
| 语种 | 英语 |
| WOS记录号 | WOS:000335886100001 |
| 公开日期 | 2015-06-03 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/15760]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Zhou, S,Wang, YP,Wang, ZQ. 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.(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. |
入库方式： OAI收割
来源：理论物理研究所
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