Oscillations of superconducting transition temperature in strong ferromagnet-superconductor bilayers |
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| Authors: | B. P. Vodopyanov L. R. Tagirov |
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| Affiliation: | (1) Zavoiskii Physicotechnical Institute, Kazan Scientific Center, Russian Academy of Sciences, Sibirskii trakt 10/7, Kazan 29, 420029 Tatarstan, Russia;(2) Kazan State University, ul. Lenina 18, Kazan, 420008 Tatarstan, Russia |
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| Abstract: | The superconducting transition temperature T c of a “clean ferromagnet-dirty superconductor” bilayer is calculated using boundary conditions derived for the quasiclassical Green’s function. This combination corresponds to the majority of experiments, in which Fe, Ni, Co, or Gd are used as a material for the ferromagnetic layer. It is shown that T c oscillates upon changing thickness of the ferromagnetic layer, in accordance with the experimental observations. |
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