2001/04/19 by V. N. Krivoruchko, E. A. Koshina · 4 citations
Materials Science · Physics and Astronomy · #Iron-based superconductors research #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.64.172511
10 pages, 3 Postscript figures
arxiv created 2001/04/19 · openalex publication_date 2001/10/11 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The dependence of the critical current on relative orientation of the F layers magnetization is analyzed within the microscopic theory of the proximity effect for a junction of two proximity S/F bilayers of a massive superconductor (S) / a thin ferromagnet (F) separated by an insulating (I) barrier. We demonstrate that for the S/F\ensuremath-I\ensuremath-F/S contact critical current can reverse its sign (\ensuremathπ-state of the junction) for the parallel orientation of the F layers magnetization, while for antiparallel alignment an enhancement of the critical current takes place.