Formation of exotic states in the $s-d$ exchange and $t-J$ models

Abstract

Different scenarios of the implementation of the two-band model in strongly correlated electrons systems, including frustrated magnets, high-temperature superconductors, and Kondo lattices, are considered. The interaction of current carriers with magnetic moments in the representations of pseudofermions or Schwinger bosons describing the spinon excitations is studied on the basis of the derived Hamiltonians of the $s-d$ exchange and $t-J$ models within the formalism of many-electron Hubbard operators.

arXiv comment5 pages

References in corpus (7)

• Weak magnetism and non-Fermi liquids near heavy-fermion critical points
• Quantum phase transitions out of the heavy Fermi liquid
• Scaling picture of magnetism formation in the anomalous f-systems: interplay of the Kondo effect and spin dynamics
• Fermi surface reconstruction in hole-doped t-J models without long-range antiferromagnetic order
• Doped carrier formulation and mean-field theory of the tt't''J model
• Non-Fermi-liquid behavior in the Kondo lattices induced by peculiarities of magnetic ordering and spin dynamics
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• Electron states and magnetic phase diagrams of strongly correlated systems
• Two-band model and RVB-type states: application to Kondo lattices, pyrochlores and Mn-based systems
• Hubbard Bands and Exotic States in Doped and Undoped Mott Systems: The Kotliar-Ruckenstein Representation