2007/06/10 by S. Moukouri, Moukouri, S.
Engineering · Materials Science · Physics and Astronomy · #FOS: Physical sciences #Molecular Junctions and Nanostructures #Organic and Molecular Conductors Research #Physics of Superconductivity and Magnetism #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.0706.1364
4 pages, 3 figures
arxiv created 2007/06/10 · openalex publication_date 2007/06/10 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
I apply a two-step renormalization group method to the study of the competition between antiferromagnetism (AFM) and superconductivity in an anisotropic 2D Hubbard model. I show that this simple model captures the essentials of the ground-state phases of the quasi 1D organic conductors. As found experimentally, the ground-state phase diagram is mostly AFM. The AFM is localized in the strong-coupling limit where the electrons are confined in the chains. It is an SDW in the weak-coupling limit where interchain hopping is present. There is a tiny region in the weak-coupling regime where transverse two-particle hopping is dominant over magnetism.