Characteristics of the Mott transition and electronic states of high-temperature cuprate superconductors from the perspective of the Hubbard model

Abstract

A fundamental issue of the Mott transition is how electrons behaving as single particles carrying spin and charge in a metal change into those exhibiting separated spin and charge excitations (low-energy spin excitation and high-energy charge excitation) in a Mott insulator. This issue has attracted considerable attention particularly in relation to high-temperature cuprate superconductors, which exhibit electronic states near the Mott transition that are difficult to explain in conventional pictures. Here, from a new viewpoint of the Mott transition based on analyses of the Hubbard model, we review anomalous features observed in high-temperature cuprate superconductors near the Mott transition.

arXiv comment12 pages, 6 figures

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Cited by in corpus (9)

• Direct visualization of ambipolar Mott transition in cuprate CuO2 planes
• Single-particle spectral function formulated and calculated by variational Monte Carlo method with application to $d$-wave superconducting state
• Emergence and spectral-weight transfer of electronic states in the Hubbard ladder
• Mott transition and electronic excitation of the Gutzwiller wavefunction
• Temperature-driven change in band structure reflecting spin-charge separation of Mott and Kondo insulators
• Effect of Coulomb repulsion on the London penetration depth in cuprate superconductors
• Emergence of electronic modes by doping Kondo insulators in the Kondo lattice and periodic Anderson models
• Emergence and evolution of electronic modes with temperature in spin-gapped Mott and Kondo insulators
• Electronic modes induced by spin and charge perturbations in Mott and Kondo insulators