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Observation of the second harmonic in the phase dependence of a superconducting current in Nb/Au/YBCO heterojunctions |
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| Authors: | P V Komissinskii G A Ovsyannikov E Il’ichev Z Ivanov |
| Institution: | 1. Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Moscow, 103907, Russia 2. Chalmers University of Technology, S 411 96, G?teborg, Sweden 3. Department of Cryoelectronics, Institute for Physical High Technology, P.O. Box 100239, D-07702, Jena, Germany |
| Abstract: | The second harmonic in the dependence of a superconducting current on the phase difference of superconducting wave functions of the electrodes was observed experimentally in Nb/Au/(001)YBa2Cu3Ox heterojunctions. Possible reasons for its appearance were discussed within the framework of a mixed (d±s) symmetry order parameter of YBa2Cu3Ox. |
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