Josephson effect in hybrid oxide heterostructures with an antiferromagnetic layer.
نویسندگان
چکیده
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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ورودعنوان ژورنال:
- Physical review letters
دوره 99 1 شماره
صفحات -
تاریخ انتشار 2007