Superconducting pairing, and the collective magnetic excitation in the extended 2-dimensional t-J model

1999/03/02 by O. P. Sushkov, Oleg Sushkov, Sushkov, Oleg
Physics and Astronomy · #FOS: Physical sciences #Physics of Superconductivity and Magnetism #Quantum Chromodynamics and Particle Interactions #Quantum, superfluid, helium dynamics #Strongly Correlated Electrons (cond-mat.str-el) #Superconductivity (cond-mat.supr-con) #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.48550/arxiv.cond-mat/9903028

11 pages, 9 Figs

arxiv created 1999/03/02 · openalex publication_date 1999/03/02 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

To investigate the non-Fermi liquid behavior we consider the extended two-dimensional t-J model which includes additional hopping t''. In the regime t,J << t'' we were able to solve the model analytically. It has a very rich phase diagram including antiferromagnetic (AF) insulator and AF strange metal with different kinds of pseudospin-singlet superconducting pairings (p,d,g-waves). We also demonstrate a collective triplet excitation with energy below the superconducting gap

Related

• On the nature of superconductivity in the t-J model of high-Tc superconductors
• Non-Fermi-Liquid-Like Behavior in The Two-Dimensional t-J Model
• Phase diagram of the one dimensional t₁-t₂-J model: Ferromagnetism, triplet pairing, charge and pair density waves
• Weak coupling model for s*- and d-wave superconductivity
• Unified non-Fermi liquid and superconductivity in a model of strongly-correlated systems