2003/12/31 by R. Mélin · 1 citation
Chemistry · Materials Science · Physics and Astronomy · #Advanced Physical and Chemical Molecular Interactions #Chemical and Physical Properties of Materials #Ferromagnetism #Microscopic theory #Monotonic function #Physics of Superconductivity and Magnetism #Spin (aerodynamics) #Superconductivity #cond-mat.mes-hall #cond-mat.supr-con
paper · pdf · doi:10.1140/epjb/e2004-00188-7
published as Eur. Phys. J. B 39, 249-260 (2004) · 13 pages, 11 figures, modifications in the presentation
arxiv created 2004/01/23 · openalex publication_date 2004/05/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The aim of this paper is to explain the non monotonic temperature dependence of the self-consistent superconducting gap of ferromagnet/superconductor/ferromagnet (F/S/F) trilayers with weak ferromagnets in the parallel alignment (equivalent to F/S bilayers). We show that this is due to Andreev bound states that compete with the formation of a minigap. Using a recursive algorithm we discuss in detail the roles of various parameters (thicknesses of the superconductor and ferromagnets, relative spin orientation of the ferromagnets, exchange field, temperature, disorder, interface transparencies).