Self-localization of composite spin-lattice polarons

Abstract

Self-localization of holes in the Holstein t-J model is studied in the adiabatic limit using exact diagonalization and the retraceable path approximation. It is shown that the critical electron-phonon coupling λ_c decreases with increasing J and that this behavior is determined mainly by the incoherent rather than by the coherent motion of the hole. The obtained spin correlation functions in the localized region can be understood within a percolation picture where antiferromagnetic order can persist up to a substantial hole doping. These results restrict the possibility of self-localization of holes in lightly doped cuprates.

4 pages, 5 figures

References in corpus (5)

• Correlated Electrons in High Temperature Superconductors
• Nodal metallic behavior of lightly-doped La${}_{2-x}$Sr${}_x$CuO${}_4$
• Polaron in t-J model
• Polaronic behavior of undoped high-Tc cuprates
• Stability of correlated electronic systems under the influence of the electron-phonon interaction

Cited by in corpus (18)

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• Synergistic Polaron Formation in the Hubbard-Holstein Model at Small Doping
• Temperature dependence of the angle resolved photoemission spectra in the undoped cuprates: self-consistent approach to the t-J-Holstein model
• Quantum Dynamics of a Driven Correlated System Coupled to Phonons
• Bipolaron in the t-J model coupled to longitudinal and transverse quantum lattice vibrations
• Electron-phonon coupling and spin-charge separation in one-dimensional Mott insulators
• Polaronic features in the optical properties of the Holstein-t-J model
• Defect states and spin-orbital physics in doped vanadates Y1-xCaxVO3
• Non-local composite spin-lattice polarons in high temperature superconductors
• Optical conductivity in the t-J-Holstein Model
• Rotational Symmetry Breaking in Sodium Doped Cuprates
• The Holstein-Hubbard Model at Half-filling : A Static Auxiliary Field Study
• Renormalization of the quasiparticle hopping integrals by spin interactions in layered copper oxides
• Suppression of superconductivity in the Hubbard model by buckling and breathing phonons
• Formation and local symmetry of Holstein polaron in t-J model
• Optical properties of the Holstein-t-J model from dynamical mean-field theory