Quantum Mott Transition and Superconductivity

Abstract

The gas-liquid transition is a first-order transition terminating at a finite-temperature critical point with diverging density fluctuations. Mott transition, a metal-insulator transition driven by Coulomb repulsion between electrons, has been identified with this textbook transition. However, the critical temperature of the Mott transition can be suppressed, resulting in unusual quantum criticality. It accounts for non-Fermi-liquid-like properties, and strongly momentum dependent quasiparticles as in many materials near the Mott insulator. Among all, the mode-coupling theory of the density fluctuations supports d-wave superconductivity at the order of a hundred Kelvin for relevant parameters of the copper oxide superconductors.

8 pages, including 3 figures

References in corpus (13)

• Colossal Magnetoresistant Materials: The Key Role of Phase Separation
• Electronic Liquid Crystal Phases of a Doped Mott Insulator
• Discovery of microscopic electronic inhomogeneity in the high-Tc superconductor Bi2Sr2CaCu2O8+x
• Powerlaw optical conductivity with a constant phase angle in high Tc superconductors
• Universality and Critical Behavior at the Mott transition
• Electronic Structure of La2-xSrxCuO4 in the Vicinity of the Superconductor-Insulator Transition
• Landau Theory of the Finite Temperature Mott Transition
• Transport criticality of the first-order Mott transition in a quasi-two-dimensional organic conductor, $\kappa$-(BEDT-TTF)${}_2$Cu[N(CN)${}_2$]Cl
• Mott Transition, Compressibility Divergence and P-T Phase Diagram of Layered Organic Superconductors: An Ultrasonic Investigation
• Magnetic and Metal-Insulator Transitions through Bandwidth Control in Two-Dimensional Hubbard Models with Nearest and Next-Nearest Neighbor Transfers
• Insulator-Metal Transition in the One and Two-Dimensional Hubbard Models
• Mott Transitions in the 2D Half-Filled Hubbard Model: Correlator Projection Method with Projective Dynamical Mean-Field Approximation
• Quantum Mott Transition and Multi-Furcating Criticality

Cited by in corpus (12)

• Quantum frustration in organic Mott insulators: from spin liquids to unconventional superconductors
• Unconventional critical behaviour in a quasi-two-dimensional organic conductor
• Strong electronic correlations in superconducting organic charge transfer salts
• Origin of high-Tc superconductivity in doped Hubbard models and their extensions: Roles of uniform charge fluctuations
• Universality Classes of Metal-Insulator Transitions in Strongly Correlated Electron Systems and Mechanism of High-Temperature Superconductivity
• Quantum criticality around metal-insulator transitions of strongly correlated electrons
• Unconventional quantum criticality emerging as a new common language of transition-metal compounds, heavy-fermion systems, and organic conductors
• Ground State Properties and Optical Conductivity of the Transition Metal Oxide $\mathrm{S}{\mathrm{r}}_2\mathrm{V}{\mathrm{O}}_4$
• Mott transition, Widom line and pseudogap in the half-filled triangular lattice Hubbard model
• Drude Weight of the Two-Dimensional Hubbard Model -- Reexamination of Finite-Size Effect in Exact Diagonalization Study --
• Magnetic-field-induced transition in BaVS3
• Fate of Quasiparticle at Mott Transition and Interplay with Lifshitz Transition Studied by Correlator Projection Method