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Microscopic theory of equilibrium properties of F/S/F trilayers with weak ferromagnets

  • R. Mélin
Article

Abstract.

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).

Keywords

Exchange Field Recursive Algorithm Microscopic Theory Spin Orientation Equilibrium Property 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin/Heidelberg 2004

Authors and Affiliations

  1. 1.Centre de Recherches sur les Trés Basses Températures (CRTBT) (U.P.R. 5001 du CNRSLaboratoire conventionné avec l’Université Joseph Fourier)Grenoble Cedex 9France

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