1998/12/12 by B. Normand, D. F. Agterberg, T. M. Rice
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Magnetic and transport properties of perovskites and related materials #Physics of Superconductivity and Magnetism #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevlett.82.4296
published as Phys. Rev. Lett. 82, 4296 (1999). · RevTex, 4 pages, 7 figures
arxiv created 1998/12/12 · openalex publication_date 1999/05/24 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
LaCuO2.5 is a system of coupled, two-chain, cuprate ladders which may be doped systematically by Sr substitution. Motivated by the recent synthesis of single crystals, we investigate theoretically the possibility of superconductivity in this compound. We use a model of spin-fluctuation-mediated superconductivity, where the pairing potential is strongly peaked at \ensuremathπ in the ladder direction. We solve the coupled gap equations on the bonding and antibonding ladder bands to find superconducting solutions across the range of doping, and discuss their relevance to the real material.