Abstract

Two different types of superconducting spin valve structures CoOx/Co1/I1/Pb/I2/Co2 (where I1 and I2 are insulating layers) and CoOx/Co1/Pb/Co2 were investigated. Obtained results for CoOx/Co1/I1/Pb/I2/Co2 structures demonstrate the full superconducting spin valve effect with a fairly significant effect value. The superconducting spin valve effect was absent for the same structure without insulating layers (CoOx/Co1/Pb/Co2), since the superconductivity was suppressed. The absence of insulating layers between the ferromagnetic and superconducting layers leads to a significant suppression of superconductivity and, as a consequence, to the destruction of the superconducting spin valve effect.

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