Abstract:
Using numerical diagonalization of a (Formula presented) cluster, we calculate on-site s, extended-(Formula presented) and (Formula presented) pairing correlation functions (PCF’s) in an effective generalized Hubbard model for the cuprates, with nearest-neighbor correlated hopping and next-nearest-neighbor hopping (Formula presented) The vertex contributions to the PCF’s are significantly enhanced, relative to the (Formula presented) model. The behavior of the PCF’s and their vertex contributions, and signatures of anomalous flux quantization, indicate superconductivity in the d-wave channel for moderate doping and in the s-wave channel for high doping and small U. © 2000 The American Physical Society.
Registro:
Documento: |
Artículo
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Título: | Pairing correlations in a generalized Hubbard model for the cuprates |
Autor: | Arrachea, L.; Aligia, A. |
Filiación: | Departamento de Física, FCyN Universidad de Buenos Aires, Pabellón I, Ciudad Universitaria, 1428 Buenos Aires, Argentina Centro Atómico Bariloche and Instituto Balseiro, Comisión Nacional de Energía Atómica, Bariloche, 8400, Argentina
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Año: | 2000
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Volumen: | 61
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Número: | 14
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Página de inicio: | 9686
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Página de fin: | 9689
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DOI: |
http://dx.doi.org/10.1103/PhysRevB.61.9686 |
Título revista: | Physical Review B - Condensed Matter and Materials Physics
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Título revista abreviado: | Phys. Rev. B Condens. Matter Mater. Phys.
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ISSN: | 10980121
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10980121_v61_n14_p9686_Arrachea |
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Citas:
---------- APA ----------
Arrachea, L. & Aligia, A.
(2000)
. Pairing correlations in a generalized Hubbard model for the cuprates. Physical Review B - Condensed Matter and Materials Physics, 61(14), 9686-9689.
http://dx.doi.org/10.1103/PhysRevB.61.9686---------- CHICAGO ----------
Arrachea, L., Aligia, A.
"Pairing correlations in a generalized Hubbard model for the cuprates"
. Physical Review B - Condensed Matter and Materials Physics 61, no. 14
(2000) : 9686-9689.
http://dx.doi.org/10.1103/PhysRevB.61.9686---------- MLA ----------
Arrachea, L., Aligia, A.
"Pairing correlations in a generalized Hubbard model for the cuprates"
. Physical Review B - Condensed Matter and Materials Physics, vol. 61, no. 14, 2000, pp. 9686-9689.
http://dx.doi.org/10.1103/PhysRevB.61.9686---------- VANCOUVER ----------
Arrachea, L., Aligia, A. Pairing correlations in a generalized Hubbard model for the cuprates. Phys. Rev. B Condens. Matter Mater. Phys. 2000;61(14):9686-9689.
http://dx.doi.org/10.1103/PhysRevB.61.9686