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The inverse proximity effect in strong ferromagnet–superconductor structures

V O Yagovtsev, N A Gusev, N G Pugach, M Eschrig

2020Superconductor Science and Technology16 citationsDOIOpen Access PDF

Abstract

Abstract The magnetization in a superconductor induced due to the inverse proximity effect is investigated in hybrid bilayers containing a superconductor and a ferromagnetic insulator or a strongly spin-polarized ferromagnetic metal. The study is performed within a quasiclassical Green function framework, wherein Usadel equations are solved with boundary conditions appropriate for strongly spin-polarized ferromagnetic materials. A comparison with recent experimental data is presented. The singlet to triplet conversion of the superconducting correlations as a result of the proximity effect with a ferromagnet is studied.

Topics & Concepts

Proximity effect (electron beam lithography)FerromagnetismCondensed matter physicsSuperconductivityInverseMagnetizationMaterials scienceInsulator (electricity)Boundary value problemSinglet stateBoundary (topology)PhysicsFunction (biology)Critical currentInverse methodAnisotropyPhysics of Superconductivity and MagnetismAdvanced Condensed Matter PhysicsTopological Materials and Phenomena