Haldane Phase in the Hubbard Model at 2/3-Filling for the Organic Molecular Compound Mo3S7(dmit)3

被引：18

作者：

Janani, C. ^{[1
,2
]}

Merino, J. ^{[3
,4
]}

McCulloch, I. P. ^{[2
]}

Powell, B. J. ^{[1
]}

机构：

[1] Univ Queensland, Sch Math & Phys, Ctr Organ Photon & Elect, Brisbane, Qld 4072, Australia

[2] Univ Queensland, Sch Math & Phys, Ctr Engineered Quantum Syst, Brisbane, Qld 4072, Australia

[3] Univ Autonoma Madrid, Dept Fis Teor Mat Condensada, Condensed Matter Phys Ctr IFIMAC, E-28049 Madrid, Spain

[4] Univ Autonoma Madrid, Inst Nicolas Cabrera, E-28049 Madrid, Spain

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 113卷 / 26期

基金：

澳大利亚研究理事会;

关键词：

TRANSITION-METAL COMPOUNDS; RENORMALIZATION-GROUP; ELECTRONIC-STRUCTURE; CHAIN; SUPERCONDUCTIVITY; ANTIFERROMAGNETS; FERROMAGNETISM; STATES; BAND;

D O I：

10.1103/PhysRevLett.113.267204

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the discovery of a correlated insulator with a bulk gap at 2/3 filling in a geometrically frustrated Hubbard model that describes the low-energy physics of Mo3S7(dmit)(3). This is very different from the Mott insulator expected at half-filling. We show that the insulating phase, which persists even for very weak electron-electron interactions (U), is adiabatically connected to the Haldane phase and is consistent with experiments on Mo3S7(dmit)(3).

引用

页数：5

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