Proximity effect and spontaneous vortex phase in planar SF structures |
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| Authors: | V. V. Ryazanov V. A. Oboznov A. S. Prokof’ev S. V. Dubonos |
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| Affiliation: | (1) Institute of Solid-State Physics, Russian Academy of Sciences, Chernogolovka, Moscow region, 142432, Russia;(2) Institute of Microelectronic Technology and Ultra-High-Purity Materials, Russian Academy of Sciences, Chernogolovka, Moscow region, 142432, Russia |
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| Abstract: | The proximity effect in SF structures is examined. It is shown that, due to the oscillations of the induced superconducting order parameter in a ferromagnet, the critical temperature of an SF bilayer becomes minimal when the thickness of the ferromagnetic layer is close to a quarter of the period of spatial oscillations. It is found that the spontaneous vortex state arising in the superconductor due to the proximity of the magnetic domain structure of a ferromagnet brings about noticeable magnetoresistive effects. |
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