SUPERCONDUCTING DEVICE WITH JOSEPHSON JUNCTION Russian patent published in 2012 - IPC H01L39/22 B82B1/00 

FIELD: electricity.

SUBSTANCE: superconducting device with Josephson junction includes area of weak link formed at substrate in the form of thin-film laminated structure containing layers of ferromagnetic material and normal metal and two electrodes made of superconducting material to connect weak-link area to power source; the device represents planar structure, which electrodes made of superconducting material with current leads are located on top of normal metal with option of superconductive correlations induction from the area of normal metal under electrode to weak-link area, at that layer of ferromagnetic material is connected to normal metal to induce superconducting correlations in it directly from area of normal metal.

EFFECT: increase of critical current amplitude at junction, more effective control of critical current value in case of availability of two ferromagnetic sublayers with different directions of magnetisation at simpler design of planar multilayer structures.

15 cl, 11 dwg