Charge and spin ordering, and charge transport properties in a two-dimensional inhomogeneous t-J model

Abstract

We study a two-dimensional t-J model close to the Ising limit in which charge inhomogeneity is stabilized by an on-site potential e_s, by using diagonalization in a restricted Hilbert space and finite temperature Quantum Monte Carlo. Both site and bond centered stripes are considered and their similitudes and differences are analyzed. The amplitude of charge inhomogeneity is studied as e_s -> 0. Moreover, we show that the anti-phase domain ordering occurs at a much lower temperature than the formation of charge inhomogeneities and charge localization. Hole-hole correlations indicate a metallic behavior of the stripes with no signs of hole attraction. Kinetic energies and current susceptibilities are computed and indications of charge localization are discussed. The study of the doping dependence in the range 0.083 < x < 0.167 suggests that these features are characteristic of the whole underdoped region.

minor changes, to be published in Physical Review B

References in corpus (6)

• Mobility of the Doped Holes and the Antiferromagnetic Correlations in Underdoped High-T_c Cuprates
• Stripes, Vibrations and Superconductivity
• Lattice anisotropy as microscopic origin of static stripes in cuprates
• Stripe orientation in an anisotropic t-J model
• Vanishing Hall Constant in the Stripe Phase of Cuprates
• Quantum Monte Carlo simulations of the t-Jz model with stripes on the square lattice

Cited by in corpus (4)

• Melting of stripe phases and its signature in the single-particle spectral function
• Thermodynamic and thermoelectric properties of high-temperature cuprate superconductors in the stripe phase
• Enhancement of pairing in a boson-fermion model for coupled ladders
• Effects of domain walls on hole motion in the two-dimensional t-J model at finite temperature