2004/02/01 by C. Dziurzik, G. I. Japaridze, Andreas Schadschneider +2 · 25 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Anisotropy #Condensed matter physics #Electron #Ferromagnetism #Gapless playback #Ground state #Magnetic and transport properties of perovskites and related materials #Phase (matter) #Phase diagram #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Spin (aerodynamics) #Superconductivity #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1140/epjb/e2004-00081-5
published in The European Physical Journal B 37(4), 453-463 (Springer Science+Business Media) · 11 pages with 15 figures
openalex publication_date 2004/02/01 · arxiv created 2004/02/16 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
In this paper we study the ground state phase diagram of a one-dimensional t-U-J model, at half-filling. In the large-bandwidth limit and for ferromagnetic exchange with easy-plane anisotropy, a phase with gapless charge and massive spin excitations, characterized by the coexistence of triplet superconducting and spin density wave instabilities is realized in the ground state. With reduction of the bandwidth, a transition into an insulating phase showing properties of the spin-1/2 XY model takes place.