Magnitude of interplane effective parameters in multilayered high-Tc cuprate superconductors
David Muñoz, Ibério de P.R. Moreira, Francesc Illas
DOI 10.1103/PhysRevB.71.172505 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
Embedded clusters and periodic supercell approaches are used to obtain accurate ab initio values for the parameters of an extended t−J Hamiltonian for multilayered cuprates. In-plane and interplane magnetic coupling constants (J and J⊥) and hopping integrals (t and t⊥) are explicitly considered for various superconducting multilayered cuprates. For YBa2Cu3O6, results are in good agreement with available experimental data thus supporting the reliability of the present extended t−J Hamiltonian parameters. The comparison of the magnitude of the different parameters in the extended t−J model strongly suggests that t⊥ and J⊥ play a key role in defining the differences in the critical temperature of bilayered cuprates.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O6+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 92 | Pressure not reported | unknown |
| HgBa2CaCu2O6+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 128 | Pressure not reported | unknown |
| HgBa2CuO4+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 97 | Pressure not reported | unknown |
| HgBa2Ca2Cu3O8+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 133 | Pressure unresolved | unknown |
| HgBa2Ca2Cu3O8+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 164 | 30 GPa | unknown |
| YBa2Cu3O6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 92 | Pressure not reported | unknown |
| LaBa2CaCu2O6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 60 | Pressure not reported | unknown |
Similar papers
Effective t-J model Hamiltonian parameters of monolayered cuprate superconductors from ab initio electronic structure calculations
similarity 0.96David Muñoz et al.
Source status unknown — claims are unverified
Structure and superconductivity of HgBa2Ca2Cu3O8+δ
similarity 0.96J. L. Wagner et al.
Source status unknown — claims are unverified
Transition temperature and a spatial dependence of the superconducting gap for multilayer high-temperature superconductors
similarity 0.96Krzysztof Byczuk & Jozef Spałek
Source status unknown — claims are unverified
Variation of the superconducting transition temperature of hole-doped copper oxides
similarity 0.96X. J. Chen & H. Q. Lin
Source status unknown — claims are unverified
Nanoscale structural correlations in a model cuprate superconductor
similarity 0.96Zachary W. Anderson et al.
Source status unknown — claims are unverified
Universal chemical formula dependence of ab initio low-energy effective Hamiltonian in single-layer carrier-doped cuprate superconductors: Study using a hierarchical dependence extraction algorithm
similarity 0.96Jean-Baptiste Morée & Ryotaro Arita
Source status unknown — claims are unverified