Haldane Phase in the Hubbard Model at 2/3-Filling for the Organic Molecular CompoundMo3S7(dmit)3

2014/01/31 by C. Janani, J. Merino, Jaime Merino +3 · 2 citations
Materials Science · Physics and Astronomy · #Condensed matter physics #Electron #Hubbard model #Insulator (electricity) #Magnetism in coordination complexes #Mott insulator #Organic and Molecular Conductors Research #Phase (matter) #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Superconductivity #cond-mat.str-el

paper · pdf · doi:10.1103/physrevlett.113.267204

published as Phys. Rev. Lett. 113, 267204 (2014) · 4+epsilon pages; accepted by PRL

arxiv created 2014/11/21 · openalex publication_date 2014/12/31 · arxiv updated 2015/01/07 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

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.

Citations

• Local unitary transformation, long-range quantum entanglement, wave function renormalization, and topological order
• String order and adiabatic continuity of Haldane chains and band insulators
• String order and symmetries in quantum spin lattices
• The density-matrix renormalization group in the age of matrix product states

Cited by

• Hidden magnetism in periodically modulated one dimensional dipolar fermions
• Phase diagram of thespin−12triangularJ1−J2Heisenberg model on a three-leg cylinder

Related

• Parent Phases of Doped Mott Insulators: A Cluster DMFT Study
• Dimerization in a half-filled one-dimensional extended Hubbard model
• An SU(N) Mott insulator of an atomic Fermi gas realized by large-spin Pomeranchuk cooling
• Instability of the Haldane Phase: Roles of Charge Fluctuations and Hund's Coupling
• Topological Phase Transition in the Two-Leg Hubbard Model: Emergence of the Haldane Phase via Diagonal Hopping and Strong Interactions