First Principle Electronic Model for High-Temperature Superconductivity

Abstract

Using the structural data of the La2CuO4 compound both in the low temperature tetragonal phase and in the isotropic phase we have derived an effective t-J model with hoppings t and superexchange interactions J extended up to fourth and second neareast neighbors respectively. By numerically studying this hamiltonian we have then reproduced the main experimental features of this HTc compound: d-wave superconductivity is stabilized at small but finite doping delta>6% away from the antiferromagnetic region and some evidence of dynamical stripes is found at commensurate filling 1/8.

4 pages including 4 figures and 2 tables

References in corpus (4)

• Evidence for ubiquitous strong electron-phonon coupling in high-temperature superconductors
• Band-structure trend in hole-doped cuprates and correlation with Tcmax
• Superconductivity in the two-dimensional t-J model
• Stripes and spin-incommensurabilities are favored by lattice anisotropies

Cited by in corpus (25)

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• A new hybrid LDA and Generalized Tight-Binding method for the electronic structure calculations of strongly correlated electron systems
• Correlated band theory of spin and orbital contributions to Dzyaloshinskii-Moriya interactions
• A Theory for the High-T_c Cuprates: Anomalous Normal-State and Spectroscopic Properties, Phase Diagram, and Pairing
• Direct theoretical evidence for weaker correlations in electron-doped and Hg-based hole-doped cuprates
• Effective Hamiltonian for cuprate superconductors derived from multi-scale ab initio scheme with level renormalization
• Magnetism and superconductivity in the $t-t^{\prime }-J$ model
• First principle computation of stripes in cuprates
• Calculated Magnetic Exchange Interactions in High-Temeprature Superconductors
• Ab Initio Study on Superconductivity and Inhomogeneity in Hg-based Cuprate Superconductor
• Calculated magnetic exchange interactions in Dirac magnon material Cu3TeO6
• Robust Half-Metallic Character and Large Oxygen Magnetism in a Perovskite Cuprate
• Orbital order and ferrimagnetic properties of the new compound $S{r}_{8}CaR{e}_{3}C{u}_4{O}_{24}$
• Parameters of the Effective Singlet-Triplet Model for Band Structure of High-$T_c$ Cuprates by Different Approaches
• Simulating high-temperature superconductivity model Hamiltonians with atoms in optical lattices
• Fluctuating charge density waves in the Hubbard model
• Cuprates, Manganites, and Cobaltites: Multielectron Approach to the Band Structure
• Estimation of the on-site Coulomb potential 1 and covalent state in La2CuO4 by muon spin rotation 2 and density functional theory calculations
• Microscopic analysis of the magnetic form factor in low-dimensional cuprates
• Doping-driven transition to a time-reversal breaking state in the phase diagram of the cuprates
• New results for the t-J model in ladders: Changes in the spin liquid state with applied magnetic field. Implications for the cuprates
• A materials informatics approach to the identification of one-band correlated materials analogous to the cuprates
• Renormalized density matrix downfolding: A rigorous framework in learning emergent models from ab initio many-body calculations
• A Unified Theory for the Cuprates, Iron-Based and Similar Superconducting Systems: Application for Spin and Charge Excitations in the Hole-Doped Cuprates
• Dominance of many-body effects over one-electron mechanism for band structure doping dependence in Nd${}_{2-x}$Ce${}_x$CuO${}_4$: LDA+GTB approach