Stripes and superconducting pairing in thet−Jmodel with Coulomb interactions

2000/12/31 by Enrico Arrigoni, E. Arrigoni, A. P. Harju +5 · 3 citations
Physics and Astronomy · #Advanced Condensed Matter Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevb.65.134503

published as Phys. Rev. B 65, 134503 (2002) · Appendix included

arxiv created 2001/10/16 · openalex publication_date 2002/03/19 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We study the competition between long- and short-range interactions among charge carriers in strongly-correlated electronic systems employing a 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\ensuremath-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 enhancement of long-range superconducting pair-field correlations.

Citations

• Stripes in Doped Antiferromagnets: Single-Particle Spectral Weight

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