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Stripes and superconducting pairing in the t-J model with Coulomb interactions | E. Arrigoni
; A. P. Harju
; W. Hanke
; B. Brendel
; S.A. Kivelson
; | Date: |
15 Dec 2000 | Journal: | Phys. Rev. B 65, 134503 (2002) | Subject: | Strongly Correlated Electrons; Superconductivity | cond-mat.str-el cond-mat.supr-con | Affiliation: | ITP Wuerzburg), S.A. Kivelson (UCLA | Abstract: | We study the competition between long- and short-range interactions among charge carriers in strongly-correlated electronic systems employing a new method which combines the density-matrix renormalization-group technique with a self-consistent treatment of the long-range interactions. We apply the method to an extended t-J model which exhibits ``stripe’’ order. The Coulomb interactions, while not destroying stripes, induce large transverse stripe fluctuations with associated charge delocalization. This leads to a substantial Coulomb-repulsion-induced {it enhancement} of long-range superconducting pair-field correlations. | Source: | arXiv, cond-mat/0012293 | Services: | Forum | Review | PDF | Favorites |
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