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Effective Hamiltonian for the superconducting Cu oxides

F. C. Zhang, T. M. Rice

DOI 10.1103/PhysRevB.37.3759 · Physical Review B

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Abstract

Although assuming that doping creates holes primarily on oxygen sites, we derive explicitly a single-band effective Hamiltonian for the high-Tc Cu-oxide superconductors. Cu-O hybridization strongly binds a hole on each square of O atoms to the central Cu2+ ion to form a local singlet. This moves through the lattice in a similar way as a hole in the single-band effective Hamiltonian of the strongly interacting Hubbard model.

Source-reported materials — not catalogue approval

FormulaReported Tc (K)Pressure (GPa)Type
La2CuO4

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—Pressure not reportedunknown

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