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Abstract:

We consider the effective extended Hubbard Hamiltonian for the cuprates, with nearest-neighbor hopping which depends on the occupation. Using exact diagonalization in a 4 × 4 cluster, we obtain a large enhancement of d-wave pairing correlation functions for optimum doping. The physical picture is consistent with magnetic measurements, the pseudogap and the kinetic energy gain in the cuprates. © 2004 Elsevier B.V. All rights reserved.

Registro:

Documento: Artículo
Título:D-wave superconductivity in the effective extended Hubbard model for cuprates
Autor:Arrachea, L.; Aligia, A.A.
Ciudad:Rio de Janeiro
Filiación:Sc. Intl. Sup. di Studi Avanzati, Ist. Naz. per la Fis. della Materia, Via Beirut 4, I-34014 Trieste, Italy
Comn. Nac. de Ener. Atómica, Centro Atómico Bariloche, Instituto Balseiro, 8400 SC, de Bariloche, Argentina
Departamento de Física, Universidad de Buenos Aires, Cd. Universitaria Pabellón I, (1428) Buenos Aires, Argentina
Palabras clave:Correlated hopping; Extended Hubbard model; Pairing mechanism; Symmetry of the order parameter; Correlated hopping; Extended Hubbard model; Order paremeters; Pairing mechanism; Chemical bonds; Doping (additives); Hamiltonians; Kinetic energy; Mathematical models; Oxide superconductors; Superconductivity
Año:2004
Volumen:408-410
Número:1-4
Página de inicio:224
Página de fin:225
DOI: http://dx.doi.org/10.1016/j.physc.2004.02.158
Título revista:Proceedings of the International Conference on Materials
Título revista abreviado:Phys C Supercond Appl
ISSN:09214534
CODEN:PHYCE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09214534_v408-410_n1-4_p224_Arrachea

Referencias:

  • Daul, S., Scalapino, D.J., White, S.R., (2000) Phys. Rev. Lett, 84, p. 4188
  • Hirsch, J.E., (2001) Phys. Rev. Lett, 84, p. 206402
  • Simon, M.E., Aligia, A.A., Gagliano, E., (1997) Phys. Rev. B, 56, p. 5637. , and references therein
  • Aligia, A.A., Arrachea, L., (1999) Phys. Rev. B, 60, p. 15332
  • Arrachea, L., Aligia, A.A., (1999) Phys. Rev. B, 59, p. 1333
  • Arrachea, L., Aligia, A.A., (2000) Phys. Rev. B, 61, p. 9686
  • Hirsch, J.E., (2002) Science, 295, p. 2226
  • Molegraaf, H.J.A., (2002) Science, 295, p. 2239
  • Aligia, A.A., Arrachea, L., (2001) Phys. Rev. B, 64, p. 214518

Citas:

---------- APA ----------
Arrachea, L. & Aligia, A.A. (2004) . D-wave superconductivity in the effective extended Hubbard model for cuprates. Proceedings of the International Conference on Materials, 408-410(1-4), 224-225.
http://dx.doi.org/10.1016/j.physc.2004.02.158
---------- CHICAGO ----------
Arrachea, L., Aligia, A.A. "D-wave superconductivity in the effective extended Hubbard model for cuprates" . Proceedings of the International Conference on Materials 408-410, no. 1-4 (2004) : 224-225.
http://dx.doi.org/10.1016/j.physc.2004.02.158
---------- MLA ----------
Arrachea, L., Aligia, A.A. "D-wave superconductivity in the effective extended Hubbard model for cuprates" . Proceedings of the International Conference on Materials, vol. 408-410, no. 1-4, 2004, pp. 224-225.
http://dx.doi.org/10.1016/j.physc.2004.02.158
---------- VANCOUVER ----------
Arrachea, L., Aligia, A.A. D-wave superconductivity in the effective extended Hubbard model for cuprates. Phys C Supercond Appl. 2004;408-410(1-4):224-225.
http://dx.doi.org/10.1016/j.physc.2004.02.158