Josephson effect in hybrid oxide heterostructures with an antiferromagnetic layer |
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| Authors: | Komissinskiy P Ovsyannikov G A Borisenko I V Kislinskii Yu V Constantinian K Y Zaitsev A V Winkler D |
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| Affiliation: | Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Moscow, Russia. |
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| Abstract: | Josephson coupling between an s- and d-wave superconductor through a 50 nm thick Ca1-xSrxCuO2 antiferromagnetic layer was observed for the hybrid Nb/Au/Ca1-xSrxCuO2/YBa2Cu3O7-delta heterostructures and investigated as a function of temperature, magnetic field, and applied millimeter-wave electromagnetic radiation. The magnetic field dependence of the supercurrent I(c)(H) exhibits anomalously rapid oscillations, which is the first experimental evidence of the theoretically predicted giant magneto-oscillations in Josephson junctions with antiferromagnetic interlayers. |
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