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Title: Magnitude of interplane effective parameters in multilayered high-Tc cuprate superconductors
Author: Muñoz Ramos, David
Moreira, Ibério de Pinho Ribeiro
Illas i Riera, Francesc
Keywords: Superconductivitat
Materials magnètics
Propietats magnètiques
Magnetic materials
Magnetic properties
Issue Date: 2005
Publisher: The American Physical Society
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 sJ and J'd and hopping integrals st and t'd 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.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review B, 2005, vol. 71, núm. 17, p. 172505-1-172505-4
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ISSN: 0163-1829
Appears in Collections:Articles publicats en revistes (Ciència dels Materials i Química Física)

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