The spin valve device based on asymmetrical ferromagnet-superconductor trilayer in an external magnetic field

27th International Conference on Low Temperature Physics

Proshin, Yu.^1 ; Avdeev, M.^1

Kazan Federal University, 18 Kremlevskaya, Kazan, Russia^1

关键词: Critical temperatures;    External magnetic field;    Ferromagnets;    Mutual orientation;    Numerical calculation;    Spin-valve devices;    Superconducting proximity;    Tri layers;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/568/2/022041/pdf
DOI  :  10.1088/1742-6596/568/2/022041

来源: IOP

【 摘 要 】

We theoretically explore superconducting proximity effect for The three-layered ferromagnet/superconductor (FS) heterostructures. We consider The boundary value problem for The Usadel-like equations in The case of so-called «dirty» limit. The different mutual orientations of The F layers magnetizations are examined in presence of The external magnetic field. The results of numerical calculations for critical temperature Tcat various parameters of FS structures are presented. The appearance of solitary superconductivity is predicted for The F1F2S system. We also discuss possible spin valve applications for F1F2S trilayers.